Based on DNA evidence showing the presence of mitochondrial genes, microsporidia have been moved to the fungal kingdom from the Protist kingdom. Thus, the correct option is C.
What are microsporidia?Microsporidia are a group of unicellular parasites that are classified as fungi. They are found in a variety of environments, including freshwater and soil. These parasitic fungi infect a wide range of animals, including insects, crustaceans, and mammals such as humans.
Microsporidia are spore-forming parasites that reproduce within host cells' cytoplasm. They have a unique organelle called the polar tube, which they use to infect host cells. The classification of microsporidia was formerly uncertain. They were believed to be members of the protist kingdom because they were unicellular and had unique characteristics that differentiated them from other eukaryotes.
However, based on DNA evidence showing the presence of mitochondrial genes, they were moved to the fungal kingdom.
Therefore, the correct option is C.
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How did scientists form the geologic time scale?
Scientists form the geologic time scale by dividing Earth’s history into major and minor eras. This is based on the evidence from the rock layers, fossils, and other data gathered from around the world.
Scientists first divided Earth’s history into the four main eras: Precambrian, Paleozoic, Mesozoic, and Cenozoic. Each of these eras is further divided into smaller and more specific periods, such as the Jurassic period during the Mesozoic era. Each of these periods has its own set of rock layers, fossils, and other evidence that can be studied.
By examining these features, scientists can build a timeline of Earth's history and map out when certain events occurred, such as mass extinctions or changes in the environment. This is how they have formed the geologic time scale.
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Classify each characteristic of grains as refined grain or whole Grain.Refined Grain Characteristics ______.Whole Grain Characteristics _______.- Densexture- Lighter texture - Contains endosperm only - Typically more expensive to purchase - Typically less expensive to purchase - Faster blood glucose response - Higher in fiber - Contains all components of the grain - Lower in liber - Slower blood glucoso response - Lower in nutrient density but enriched - Higher in vitamins, minerals, and antioxidants
Refined Grain Characteristics are: Lighter texture, contains endosperm only, typically more expensive to purchase, faster blood glucose response.
Whole Grain Characteristics: Densexture, higher in fiber, contains all components of the grain, typically less expensive to purchase, slower blood glucose response, lower in nutrient density but enriched, and higher in vitamins, minerals, and antioxidants.
Refined grains, such as white bread, white rice, and white pasta, have been processed to remove the bran and germ. The bran and germ contain fiber, vitamins, and minerals, making refined grains less nutritious than whole grains, which contain all three components of the grain.The whole grain characteristics are high in fiber, vitamins, minerals, and antioxidants. Refined grains are lower in fiber and nutrient density, but they can be enriched with some vitamins and minerals.
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what are 3 differences between the daughter cells made from mitosis vs. the daughter cells made from meiosis?
Three differences between the daughter cells made from mitosis and the daughter cells made from meiosis are as follows: 1. Mitosis daughter cells: In mitosis, two daughter cells are produced, each of which is genetically identical to the parent cell, and each has the same number of chromosomes as the parent cell.
Meiosis daughter cells: In meiosis, four daughter cells are produced, each with half the number of chromosomes as the parent cell. Each daughter cell is genetically distinct from the parent cell and each other.
2. Mitosis daughter cells: In mitosis, daughter cells are usually diploid (2n), with two sets of chromosomes.
Meiosis daughter cells: In meiosis, daughter cells are usually haploid (n), with a single set of chromosomes.
3. Mitosis daughter cells: Mitosis is responsible for cell growth, repair, and asexual reproduction in organisms. Meiosis daughter cells: Meiosis is responsible for sexual reproduction in organisms. It helps to produce genetically diverse offspring.
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in pea plants, the allele for purple flowers, p, is dominant over the allele for white flowers, p. which conclusion about phenotype and genotype is possible?(1 point) responses A. if a plant has white flowers, then its genotype must be pp. B. if a plant has white flowers, then its genotype must be , pp, . C. if a plant has white flowers, then its genotype must be pp. D. if a plant has white flowers, then its genotype must be , pp, . E. if a plant has purple flowers, then its genotype must be pp. F. if a plant has purple flowers, then its genotype must be , pp, . G. if a plant has purple flowers, then its genotype must be pp.
A plant's genotype must be pp if it produces white blooms. On pea plants, purple flowers are predominate and white flowers are recessive. The blossom will be purple if at least one P allele is present.
What is the most accurate way to define genotype?The genetic configuration of a property that an organism inherits from its parents is called a genotype. The total set of genes that a child or adult acquired from each parent is referred to as the genotype.
How can a genotype be determined?With a Punnett square, you may ascertain a genotype. To identify the genotypes that are present, you can utilize analytical techniques like PCR analysis and genomic dna hybridization if you are functioning in a more sophisticated laboratory.
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what needs to be improved about the human activity system?
Answer:
Brain
Explanation:
The brain needs to be improved because we always use it not only in storing words or something else but we can also use our brains to see without the eyes so the brains need to be improved
which substance acts like a machine that pushes together molecules of ADP and phosphate (P) groups?
Answer: A. ATP SYNTHASE
Explanation: Explanation
what part of the eye changes shape to adjust the size of the pupil?
The iris is the part of the eye that changes shape to adjust the size of the pupil.
The iris is a thin, circular structure located in front of the lens and behind the cornea. It contains pigment cells that give the eye its color and muscles that control the size of the pupil. The circular muscles within the iris, known as the sphincter pupillae muscles, contract to constrict the pupil and reduce the amount of light entering the eye.
The radial muscles within the iris, known as the dilator pupillae muscles, relax to widen the pupil and allow more light to enter the eye. This process is called pupillary reflex and is important for regulating the amount of light that reaches the retina.
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Which trinucleotide repeat disorder would not be consistent with the hairpin formation part of this model?
CG
AA
GC
CG
AA
GC
CG
A
a) Huntington disease (CAG repeat)
b) Fragile X syndrome (CGG repeat)
c) Jacobsen syndrome (CGG repeat)
d) Friedreich ataxia (GAA repeat)
d) Friedreich ataxia is a trinucleotide repeat disorder that is not consistent with the hairpin formation portion of this model. (GAA repeat).
The increase of a GAA trinucleotide repeat in the first intron of the frataxin (FXN) gene on chromosome 9 causes Friedreich ataxia. The expanded GAA repeat in this disorder causes the creation of a stable DNA hairpin structure.
Frataxin is a mitochondrial protein that is required for iron-sulfur cluster formation and oxidative phosphorylation. The trinucleotide repeat sequence in the provided model is CGAA, which is inconsistent with the GAA repeat seen in Friedreich ataxia.
This model's hairpin formation component is also irrelevant to the pathogenesis of the other trinucleotide repeat disorders mentioned in the because their repeat sequences do not form stable hairpin structures.
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Using change of base matrices to find coordinate matrices of linear transformations Let B and C be two ordered bases of R2, and consider a linear transformation T: R2 + R2. Suppose that the change of base matrix Ic, B is given by 0 -2 3 3 and the coordinate matrix Tc,c of T with respect to C is given by [ -=-1) 2 Use this to determine coordinate matrix TB,B of T with respect to B. TB,B ?
To find TB,B, we use the inverse of Ic,B to obtain the change of base matrix from B to C. We then multiply this matrix with Tc,C and Ic,B to get TB,B as a 2x2 matrix with entries 2, 2, -3, -3.
To find the coordinate matrix TB,B of T with respect to B, we need to use the change of base matrix from B to C, which is the inverse of the change of base matrix from C to B. That is:
Ib, C = (Ic, B)⁽⁻¹⁾
First, we find the inverse of Ic, B:
| 0 -2 |⁻¹ | 3 3 |
| 3 3 | = |-1 2 |
Now, we can use this matrix to find the coordinate matrix TB,B as follows:
TB,B = Ib, C * Tc,C * Ic, B
TB,B = (Ic, B)⁽⁻¹⁾ * Tc,C * Ic, B
TB,B = | -1 2 | * | -1 0 | * | 0 -2 |
| 3 3 | | 2 1 | | 3 3 |
TB,B = | 2 2 |
|-3 -3 |
Therefore, the coordinate matrix TB,B of T with respect to B is:
TB,B = | 2 2 |
|-3 -3 |
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in mitosis, the main difference between plant and animal cells is that
The main difference between plant and animal cells during mitosis is the process of cytokinesis. Animal cells undergo cytokinesis through the formation of a cleavage furrow, which is the constriction of the cell membrane at the equator of the cell, which eventually separates the two daughter cells.
The plant cells undergo cytokinesis through the formation of a cell plate. During telophase, the vesicles from the Golgi apparatus fuse at the centre of the dividing cell, forming a cell plate that gradually grows outward towards the cell walls, separating the two daughter cells.
Another difference between plant and animal cells during mitosis is that plant cells have a rigid cell wall that must be split during cytokinesis, while animal cells have a flexible cell membrane that can easily form a cleavage furrow. Additionally, plant cells have a unique organelle called the spindle pole body, which helps to organize the spindle fibres during mitosis.
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41) The primary function of the integument of an ovule is to. A) protect against animal predation. B) ensure double fertilization. C) form a seed coat.
Answer: form a seed coat.
1. What obstacles did you identify in the video that made it difficult for Ms LePoint to succeed? Are any of those obstacles specific for sex, race, gender or another identity? 2. Ms. LePoint described three steps to achieving success. Describe those steps. 3. Explain the term mathaphobia, then explain how that term might apply to you as a STEM student. Also, does it only apply to math? 4. In the video, Ms. LePoint described how she transitioned from a failing student to one who eventually became a rocket scientist. Why was her mindset so important to her success? How did her mindset change?
Yes, many of these obstacles are specifically related to her sex, race, and gender.
In the video, some of the obstacles Ms LePoint faced included being part of a family of farmers in a small town, lack of financial resources, lack of role models, and not believing that she could pursue a career in STEM.
The three steps Ms. LePoint mentioned for achieving success are:
Perseverance: don't give up even when faced with obstacles,
Mentorship: find people who can support and guide you, and
Resilience: have a strong sense of self and don't allow others to put you down.
Mathaphobia is a fear of mathematics, often stemming from negative past experiences with math. As a STEM student, mathaphobia might prevent you from pursuing higher math-related studies or even enrolling in classes. However, it is not limited to math, as other types of phobias, such as writingaphobia or codephobia, may also affect students.
Ms. LePoint's mindset was extremely important to her success because it allowed her to continue striving despite the odds being against her. She was able to make the transition from a failing student to a rocket scientist by developing a growth mindset, which involves viewing obstacles as opportunities to learn, and cultivating a sense of resilience and self-belief.
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There is some evidence that pharyngeal gill slits occur in certain species of echinoderms that appear early in the fossil record. If confirmed, what do these data suggest?
The presence of pharyngeal gill slits in certain species of echinoderms that appear early in the fossil record would suggest that these structures are not unique to chordates and that they may have evolved independently in different lineages.
One of the distinguishing characteristics of chordates are pharyngeal gill slits, which are employed for breathing or filter feeding. It would imply that they perform a comparable purpose in these species if echinoderms, which are not chordates, also evolved these structures. This would strengthen the argument that evolution is a branching process rather than a linear path, with numerous independent adaptations taking place in various lineages throughout time.
It's crucial to remember that the existence of these features in early echinoderms does not necessarily mean that echinoderms and chordates have a direct evolutionary connection. Instead, it would imply the evolution of identical structures in several lineages in a convergent fashion. To validate the existence of pharyngeal gill slits in echinoderms and to comprehend the consequences for our comprehension of the evolution of these features in various species, additional study and investigation are required.
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Identify all of the following that are components of the prokaryotic core RNA polymerase. Two identical alpha subunits. In a bacterial cell, several genes can be clustered together and transcribed onto the same mRNA molecule....transcribes rRNA.transcribes mRNA.transcribes tRNA.
The prokaryotic core RNA polymerase consists of two identical alpha-subunits. In a bacterial cell, several genes can be clustered together and transcribed onto the same mRNA molecule called the operon.
Five subunits make up the bacterial RNA polymerase's central structure. There are two identical alpha subunits in the core enzyme. Similar genes are frequently located together on the chromosome of bacteria, where they are produced as a single unit from a single promoter (RNA polymerase binding site).
An operon is a collection of genes that is under the control of a single promoter. Operons are frequent in bacteria but uncommon in eukaryotes like humans. Several genes that will be translated into proteins can be found in the mRNA molecule that is created during transcription. Messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA are the three RNA molecule types that are created during transcription (tRNA).
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Complete question is:
Identify all of the following that are components of the prokaryotic core RNA polymerase.
Two identical alpha subunits.
One β' subunit
One β subunit
In a bacterial cell, several genes can be clustered together and transcribed onto the same mRNA molecule.
transcribes rRNA.
transcribes mRNA.
transcribes tRNA.
put the following steps of inflammation into the correct order: 1. neutrophils enter and do phagocytosis 2. macrophages enter and do phagocytosis 3. mast cells release chemical mediators 4. vasodialation
The correct order of the steps of inflammation is as follows
Mast cells release chemical mediators.Vasodilation.Neutrophils enter and do phagocytosis.Macrophages enter and do phagocytosis.Inflammation is a biological response to infection, tissue injury, or irritants. It is a complex process that involves the activation of various immune cells, chemical mediators, and blood vessels to remove the source of injury or infection and to initiate tissue repair. There are five cardinal signs of inflammation, including pain, redness, heat, swelling, and loss of function. Inflammation can be either acute or chronic, depending on the duration and severity of the stimulus.
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A family has three daughters with the same parents. State whether the girls would look alike or be different, then state at least one scientific fact that helps to support your answer.
The three daughters of the same parents are likely to be different. Scientific fact that supports this answer is the law of independent assortment of genes.
What is law of independent assortment?Law of independent assortment is a basic principle of genetics that states that during formation of gametes, alleles for one gene segregate independently of the alleles for another gene. This means that traits controlled by different genes are inherited independently of each other, and combination of traits inherited by offspring is a matter of chance.
As each parent contributes half of their genetic material to their offspring, there is a high degree of genetic variability in offspring. This genetic variability is further increased by independent assortment of genes during meiosis, which results in production of unique combinations of genetic material in each offspring. As a result, even siblings who have same parents are likely to be genetically distinct and have different physical traits, including the physical appearance.
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Question 6 1 pts The fossils of Pakicetus, Ambulocetus, Rodhocetus, and Dorudon are examples of fifteen million years of evolution between Indohyus and Balaena (modern baleen whale). demonstrating the O adaptive traits O analogous traits O transitional fossils O homologous traits
The fossils of Pakicetus, Ambulocetus, Rodhocetus, and Dorudon are examples of transitional fossils. This means that the organisms they represent have traits that are intermediate between the ancestral forms and the derived forms.
Transitional fossils are fossils that represent the transitional phases between two groups of animals. These fossils are unique in that they have intermediate traits between two groups of organisms, showing the evolutionary change from one form to another. Transitional fossils are critical because they help to fill in gaps in the fossil record, which is incomplete due to the rarity of preservation under specific circumstances. They provide a means of examining the evolutionary transitions that occurred, allowing scientists to understand the timing and sequence of significant changes in the anatomy of species, as well as their origin and evolutionary relationships.
The fossils of Pakicetus, Ambulocetus, Rodhocetus, and Dorudon are examples of fifteen million years of evolution between Indohyus and Balaena (modern baleen whale). This demonstrates that the organisms they represent have traits that are intermediate between the ancestral forms and the derived forms, i.e., they have transitional traits.
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which phase of hemostasis is vessel contractility most important during?
Vessel contractility is most important during the vascular phase of hemostasis. Because the vascular phase is the initial phase of hemostasis that occurs immediately after injury to a blood vessel.
Blood vessels are tubular structures that form a network throughout the body, transporting blood to and from the heart. There are three types of blood vessels: arteries, veins, and capillaries. Arteries carry oxygen-rich blood away from the heart to the rest of the body, while veins carry oxygen-poor blood back to the heart. Capillaries are small, thin vessels that connect arteries and veins, allowing for the exchange of nutrients, oxygen, and waste products between the blood and tissues.
The walls of blood vessels are composed of three layers: the inner layer or endothelium, the middle layer or smooth muscle, and the outer layer or connective tissue. These layers work together to regulate blood flow, maintain blood pressure, and provide structural support to the vessels.
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fruits that have a central pit enclosing a single seed are known as
what is the function of the styloid process of the temporal bone?
The styloid process of the temporal bone is a thin, pointed bone protrusion located at the base of the skull just in front of the ear.
The primary function of a styloid process is to provide attachment points for muscles and ligaments of the neck and face, more specifically, it serves as the attachment point for the stylohyoid ligament, which connects the hyoid bone to the styloid process, and for the stylomandibular ligament, which connects the mandible to the styloid process. It also provides attachment points for the styloglossus and stylopharyngeus muscles, which help to move the tongue and pharynx, respectively. Also, it helps to support the structures of the throat and neck, including the pharynx, larynx, and esophagus.
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you are part of a mission sent to colonize a new planet, named planet x. the atmospheric composition of planet x is very similar to that of earth. your team begins work to investigate the new planet, finding new species of plants and animals. your team botanist, dr. flowers, is measuring the photosynthesis of the local plants. her hypothesis is the end products of photosynthesis in the planet x plants will be the same as the end products of earth plants. which of the following would she expect to see from the plants on planet x? a. h2o and o2 b. c6h12o6 and h2o c. co2 and h2o d. c6h12o6 and o2 e. co2 and c6h12o6
The botanist, Dr. Flowers, would expect to see C6H12O6 and O2 as the end products of photosynthesis in the plants on Planet X. The correct option is (d).
Dr. Flowers, a botanist, is measuring the photosynthesis of local plants on Planet X. Her hypothesis is that the end products of photosynthesis in Planet X's plants will be the same as those of Earth's plants.
If Dr. Flowers' hypothesis is correct, C6H12O6 and O2, would be anticipated from the plants on Planet X if Dr. Flowers' hypothesis that the end products of photosynthesis in Planet X's plants will be the same as those of Earth's plants is correct.
The primary output of photosynthesis is glucose or sugar (C6H12O6) and oxygen (O2). 6 CO2 + 6 H2O + light energy → C6H12O6 + 6 O2. This equation of photosynthesis shows that carbon dioxide (CO2) and water (H2O) are used in photosynthesis, whereas oxygen (O2) and glucose (C6H12O6) are released as products.
Therefore, Dr. Flowers' hypothesis is that Planet X's plants, like Earth's plants, will produce glucose and oxygen as photosynthesis end products. Hence, option D is correct.
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A concise diagram of a fruit
The exocarp, mesocarp, and endocarp are normally the three major components of a fruit.
Exocarp: Often referred to as the fruit's skin, this is the fruit's outermost covering.
The central, fle shy layer of the fruit known as the mesocarp is where the majority of the fruit's mass is located.
The endocarp, or innermost layer of the fruit, encloses the seeds.
FruitA flower's developed ovary that bears seeds is referred to as a fruit. Usually, an ovary develops into a fruit and the ovules inside mature into seeds after pollination and fertilization of the flower. The fruit is then propagated via a variety of techniques, including wind, water, or animals, which aid in dispersing the seeds and ensuring the survival of the plant species.The exocarp, mesocarp, and endocarp are the fruit's three primary structural components. The fruit's exocarp, commonly referred to as the skin, is its outermost covering. It serves to guard the fruit against harm, water loss, and pests and is frequently thin and colorful. Depending on the fruit, the exocarp may be smooth, ha iry, waxy, or textured.learn more about fruit here
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It is possible for a cell to make proteins that last for months; hemoglobin in red blood cells is a good example. However, many proteins are not this long-lasting. They may be degraded in days or even hours. What is the advantage of short-lived proteins?
A). Most cells have a short life span.
B). Short-lived proteins enable the cells to adjust (control) gene expression when this is critical to their well-being.
C). Long-lasting proteins are likely to make the cell cancerous.
D). Cells lack the raw materials to make most of the proteins they need.
E). Most proteins are used only once.
The advantage of short-lived proteins is that they enable the cells to adjust (control) gene expression when this is critical to their well-being. The correct option is B.
Proteins are biomolecules composed of one or more long chains of amino acid residues, which play a significant role in most biological processes. Amino acids are connected to each other in a linear chain through peptide bonds in a particular order defined by the genetic code. The sequence of amino acids in a protein defines the structure and functionality of the protein, allowing it to carry out a broad range of functions within the cell or organism. Proteins have many vital functions in the body, such as providing structure, acting as enzymes to catalyze chemical reactions, serving as signalling molecules, and performing various other metabolic, transport, and regulatory functions.Short-lived proteins, unlike long-lived proteins, are responsible for a variety of cellular functions, including the regulation of gene expression, rapid responses to environmental stimuli, and short-term metabolic adjustments, among others. As a result, they assist cells in adapting to their environment, maintaining homeostasis, and avoiding cellular dysfunction caused by the buildup of unwanted molecules.Long-lived proteins, on the other hand, may produce accumulated damage over time, leading to cellular and tissue impairment. Short-lived proteins are highly regulated, and their speedy elimination from the cell is critical for their proper function. Furthermore, short-lived proteins are degraded by the cell's intracellular proteolytic machinery, allowing the cell to quickly remove proteins that are no longer required or have become harmful. Thus, short-lived proteins play a critical role in maintaining cellular health and preventing disease. So, the answer to the given question is option B. Short-lived proteins enable the cells to adjust (control) gene expression when this is critical to their well-being.Learn more about proteins: https://brainly.com/question/884935
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what is anabolic steroids are the synethetic version of the male hormone estrogen.?
Anabolic steroids are synthetic (man-made) versions of testosterone. Testosterone is the main sex hormone in men.
It is needed to develop and maintain male sex characteristics, such as facial hair, deep voice, and muscle growth. Women do have some testosterone in their bodies, but in much smaller amounts.
Anabolic steroids are prescribed by medical professionals to treat some hormonal issues in men, delayed puberty, and muscle loss caused by certain disorders. Some individuals do however abuse anabolic drugs.
Anabolic steroids are used by some bodybuilders and sportsmen to bulk up and enhance their athletic abilities. The steroid dosage can be administered orally, intramuscularly, topically, or as a gel or cream to the skin. These doses could be anywhere between 10 and 100 times more than those used to treat illnesses. It is neither legal nor safe to use them in this way without a prescription from a doctor.
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According to the chemiosmotic mechanism, ATP is generated when
A) Electrons are transferred between carrier molecules.
B) A high-energy phosphate group is transferred from an intermediate metabolite to ADP.
C) Chlorophyll liberates an electron.
D) Protons are moved across a membrane.
E) Cells lyse in a hypotonic environment.
According to the chemiosmotic mechanism, ATP is generated when (D) protons are moved across a membrane.
It suggests that ATP synthesis is caused by a gradient of protons established across the inner mitochondrial membrane or the thylakoid membrane in photosynthetic organisms through the redox reactions of the electron transfer chains.
The transfer of electrons through the electron transport chain is coupled with proton translocation across the membrane in the chemiosmotic mechanism. This activity establishes an electrochemical gradient across the membrane with protons building up on one side of the membrane.
To achieve ATP synthesis, this gradient of protons must be restored to equilibrium by moving the protons back to the other side of the membrane. The energy derived from this gradient is then utilized for ATP synthesis.
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which structure of the ear converts sound waves into vibrations?
Answer:
The Cochlea
Explanation:
The ear is the organ of hearing and equilibrium in vertebrates, in humans consisting of an external ear that gathers sound vibrations, the middle ear in which the vibration resonate against the tympanic membrane, a fluid-filled internal ear that maintains balance and that conducts the tympani vibrations to the auditory nerve, which transmits them as impulses to the brain. The Cochlea is a spiral-shaped cavity forming a division of the internal ear in humans and in most other mammals.
Identify the structure that synthesizes MHC class I molecules.
a. Ribosomes
b. Smooth endoplasmic
c. Rough ER
d.Mitochondria
The structure that synthesizes MHC class I molecules is the Rough ER (Endoplasmic Reticulum). Therefore, the correct answer is option c. Rough ER.
Major Histocompatibility Complex (MHC) class I molecules are transmembrane proteins that are synthesized in the endoplasmic reticulum (ER) and are involved in antigen presentation to cytotoxic T lymphocytes. MHC class I molecules are essential components of the immune system that play a critical role in immune responses to pathogenic infections and tumor development. The rough endoplasmic reticulum (RER) is a type of endoplasmic reticulum (ER) with attached ribosomes that synthesize proteins destined for insertion into the ER, plasma membrane, or secretion from the cell. The RER plays an important role in the synthesis and folding of secretory and membrane proteins, as well as in the modification, quality control, and transport of newly synthesized proteins. MHC class I molecules are synthesized in the RER and transported to the cell surface via the secretory pathway, where they present peptides derived from intracellular pathogens or self-antigens to CD8+ T cells.
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how are the lock and key and induced fit models different
The lock and key model is a theoretical illustration of how enzymes interact with substrate molecules while the induced fit model suggests that the enzyme changes its shape as it interacts with the substrate molecule. In this way, the two models are different.
The lock-and-key model of enzymes claims that the shape of the active site on the enzyme molecule is such that it specifically matches the shape of a complementary substrate molecule. According to this model, the active site is rigid and unchanging, and the substrate molecule's shape must fit into it precisely.
The induced fit theory suggests that as a substrate approaches the enzyme's active site, the active site's shape shifts slightly to accommodate the substrate's shape, resulting in a tighter, more snug fit. According to this theory, the active site and substrate molecule both shift as they interact, with the enzyme shifting into a new shape that is optimized for catalysis when bound to the substrate molecule.
The induced fit theory is the most widely acknowledged theory of enzyme-substrate interactions.
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Select the feature(s) common to ecdysozoans. (Choose one or more.)
A. spiral cleavage
B. Intermittent growth with molting
C. Waxy cuticle
D. Continuous growth
how do cancer cell differ from noncancerous cell? how are they similar ?
