TRUE Statement
- contains connective tissues
- visible directional orientation of collagen fibers
- found in areas where bones are joined via cartilage
- same tissue category as blood
- a larger portion of extracellular matrix to cells
- functions to resist shock
FALSE Statement
- seen in tendons
- contains dense irregular connective tissue
- contains a perichondrium
- chondrocytes in clusters of 3-4 arranged in clumps
What is perichondrium?
The cartilage of growing bones is surrounded by a layer of dense, wavy connective tissue called the perichondrium. It is made up of an inner chondrogenic layer and an exterior fibrous layer. Fibroblasts in the fibrous layer create collagenous fibers. The chondrogenic layer can produce chondroblasts and is yet undifferentiated. Both hyaline cartilage and elastic cartilage have perichondrium at their edges.
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Which of the following processes correctly describes alternative RNA spiling?
O It can allow the production of similar proteins from different RNAS.
O lt is a mechanism for increasing the rate of transation.
O It increases the rate of transcription.
O It can allow the production of protens of different sizes and functions strom a single mPRA
Answer: d
Explanation:
TRUE/FALSE. single-cell profiling of tumor heterogeneity and the microenvironment in advanced non-small cell lung cance
The statement is False, i.e. single-cell profiling of tumor heterogeneity and the microenvironment in advanced non-small cell lung cancer.
Tumor cells can vary in their cellular shape, gene expression, metabolism, motility, proliferation, and metastatic potential, among other physical and behavioral characteristics. Tumor heterogeneity is the term for this phenomenon. This phenomenon has an impact on tumors both within them and between them (inter-tumor heterogeneity) (intra-tumour heterogeneity). Every time a cell multiplies, whether it be healthy or cancerous, a few mutations are picked up, creating a diverse population of cancer cells. This minor degree of intra-tumor heterogeneity is a clear outcome of the flaw in DNA replication. Because cancer cells vary greatly in their characteristics, creating effective treatment programs is substantially more difficult. But research into recognizing and explaining heterogeneity can help us better understand the origins and progression of disease. This could then serve as guidance for the creation of more complex treatment plans that account for heterogeneity to yield higher efficacy. A population of tumor cells only contains a small subset of cells that are tumorigenic, claims the cancer stem cell paradigm (able to form tumours). These cells, which have the ability to self-renew and differentiate into progeny that are not tumorigenic, are known as cancer stem cells (CSCs).
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where would you find iron regulatory protein (irps)? group of answer choices cytosol nucleus mitochondria golgi apparatus
Similar to how iron is imported and transported within cells, mitochondrial iron import and transport are tightly controlled, careful processes intended to prevent undesired.
Which of these are hollow rods that help the cell form and are supported?The third main component of the cytoskeleton, microtubules, are hard, hollow rods with a diameter of around 25 nm. Microtubules are dynamic, constantly assembling and disassembling within the cell, much like actin filaments.
What form does the packaging and modification of proteins take?Figure 1: Proteins are modified and organized for transport within the cell by the Golgi apparatus. In cells, the Golgi apparatus and ER are frequently found together.
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is its inheritance sex-linked or autosomal? is its inheritance sex-linked or autosomal? the inheritance of the disorder is sex-linked because it is seen only in boys. the inheritance of the disorder is autosomal because sick children are born to apparently unaffected parents. the inheritance of the disorder is sex-linked because it is encoded by y -linked genes. the inheritance of the disorder cannot be determined as sex-linked or autosomal.
The inheritance of the disorder is sex-linked because it is encoded by y -linked genes.
In people there are the X or the Y chromosomes. And so a number of the greater acquainted sex-related tendencies are hemophilia, purple-green colour blindness, congenital night blindness, a few excessive blood stress genes, Duchenne muscular dystrophy, and also Fragile X syndrome.
A sex-linked inherited sickness is resulting from a genetic mutation on the X chromosome. These are also inherited in a dominant or recessive sample.
There also are disorders related to the Y chromosome, however these are inherited much less often. That is due to the fact they're regularly associated with male infertility.
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Animal cells typically achieve cytokinesis by
a binary fission.
b chromosome condensation.
c. forming a cleavage furrow that pinches the cell into two.
d forming a cell plate across the middle of the cell.
- chromosome elongation.
In an asexual life cycle, cells reproduce by meiosis. fertilization. All of the answer choices are correct. meiosis and fertilization. mitosis.
Answer:
k
Explanation:
mr. baldridge suffers from excessive urination during the night. the medical term for this is
If Mr. Baldridge suffers from excessive urination during the night, then the medical term for this is nocturia.
What is the nocturia medical condition?
The nocturia medical condition refers to a health issue in which the individual need to wake up several times at the night in order to urinate, which may be due to different reasons such as enlargement of the prostate in men.
Therefore, with this data, we can see that the nocturia medical condition is associated with excessive urination at the night and it may be due to different reasons.
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Which organelles are found in an animal cell?check all that apply. Endoplasmic reticulumcentriolescell wallvacuoleslysosomesmitochondriachloroplastscell membrane.
The organelles present in an animal cell are-endoplasmic reticulum, centrioles, vacuoles, lysosomes, mitochondria, and cell membrane.
The endoplasmic reticulum is continuous with the outer nuclear membrane. It facilitates the production of chemical compounds as well as their transport into and out of the nucleus.
During meiosis and mitosis, centrioles are crucial to cell division.
Vacuoles play a key role in the storage of waste materials and aid in regulating the pH of the cell.
The waste molecules are broken down into simpler substances by lysosomes.
The mitochondria are the powerhouse of the cell because they contribute to the production of ATP, which the cell uses as energy for a variety of tasks.
The cell's protective barrier is the cell membrane. It controls how things get into and out of the cell.
The complete question is:
Which organelles are found in an animal cell? check all that apply.
(A). Endoplasmic reticulum
(B). Centrioles
(C). Cell wall
(D). Vacuoles
(E). Lysosomes
(F). Mitochondrial
(G). Chloroplasts
(H). Cell membrane
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if a tunicate's pharyngeal gill slits were suddenly blocked, the animal would have trouble _____.
If a tunicate's pharyngeal gill slits were suddenly blocked, the animal would have trouble respiring and feeding.
What are the tunicate's pharyngeal gill slits?The tunicate's pharyngeal gill slits are a series of structures within this taxonomic group that function in order to make the process of respiration and feeding possible by filtering substances in the aquatic environment.
Therefore, with this data, we can see that the tunicate's pharyngeal gill slits play a fundamental role in filtering substances.
Complete question:
Fill in the blank. If a tunicate's pharyngeal gill slits were suddenly blocked, the animal would have trouble___.
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Label the image of a compound light microscope using the terms provided.
The labeled compound light microscope is attached accordingly. A compound microscope is a microscope that enlarges the picture of a sample by using numerous lenses.
What is a compound light microscope used for?A compound microscope is often used for seeing materials at high magnification (40 - 1000x), which is accomplished by the combined impact of two sets of lenses: the ocular lens (in the eyepiece) and the objective lenses (close to the sample).
The compound light microscope is best for studying complex structures inside cells, leaves, stems, and molds, as well as surface features of a specimen, tissue samples, and cells.
A compound light microscope is simple to use and operate. It is small and hence easy to keep. It is a vital resource in biosciences and medicine. It allows you to observe live specimen samples.
The invention of the Microscope by Lens Crafters around 1590. Every major discipline of research has profited from the use of the microscope, which was invented in the late 16th century by a humble Dutch eyeglass manufacturer named Zacharias Janssen.
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classify the effector muscle involved in the response to the stretch reflex being tested by clicking and dragging the labels to the correct location.
Patellar reflex: Quadriceps femoris, Calcaneal reflex: Gastrocnemius and Soleus, Biceps reflex: Biceps brachii, Triceps reflex: Triceps brachii, Plantar reflex: Gastrocnemius, Soleus and Flexor digitorum longus.
A reflex is an uncontrollable movement that happens very instantly in reaction to stimuli. The reflex, which happens through a reflex arc, is an involuntary reaction to a stimulus that doesn't require or receive conscious cognition. Before an impulse reaches the brain, reflex arcs respond to it. examines descending motor pathways, motor nerves, synaptic connections in the spinal cord, and afferent nerves. Reflexes are suppressed by lower motor neuron lesions (such as those that damage the anterior horn cell, spinal root, or peripheral nerve) and are increased by upper motor neuron lesions. The amount of CNS damage may be determined by stimulating the abdominal reflex, which is done by massaging the belly.
The complete question is:
Classify the effector muscle involved in the response to the stretch reflex being tested by clicking and dragging the labels to the correct location.
(A). Patellar reflex:
(B). Calcaneal reflex:
(C). Biceps reflex:
(D). Triceps reflex:
(E). Plantar reflex:
The options are Quadriceps femoris, Soleus, Biceps brachii, Triceps brachii, Gastrocnemius, Soleus, and Flexor digitorum longus.
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transduction refers to conversion of
Answer:
one form of energy into another
Explanation:
early hominin species, such as ardipithecus ramidus and australopithecus afarensis, evolved during the late epoch.
The earliest hominin species (such as Australopithecus) evolved during the late Pliocene epoch.
The geologic period known as the Pliocene spans from 5.333 million to 2.58 million years ago. In the Cenozoic Era, it is the second and most recent epoch of the Neogene Period.
The Miocene Epoch is followed by the Pliocene, which is then followed by the Pleistocene.
Despite being a brief epoch, the Pliocene saw enormous occurrences including the formation of ice caps, the drying of the Mediterranean, and the union of the Americas.
From a biogeographic perspective, this period is distinguished by the dramatically modernisation of animals.
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which of the following tactile receptors is found in the dermal papillae? identification of tactile receptors which of the following tactile receptors is found in the dermal papillae? identification of tactile receptors tactile disc ruffini corpuscle free nerve endings tactile corpuscle
Meissner corpuscle or tactile corpuscle is the tactile receptor found in the dermal papillae.
Professor Georg Meissner and Professor Rudolf Wagner initially identified Meissner corpuscles, often referred to as Wagner-Meissner corpuscles or tactile corpuscles, as a subset of mechanoreceptors in 1852. These unique encapsulated nerve terminals transmit low-frequency vibration and fine touch sensations to the central nervous system from the dermal papillae of glabrous skin (CNS). Meissner corpuscles are crucial for somatosensory acuity, particularly in the palmar skin and digital extremities. This has clinical implications for diabetic neuropathy, peripheral neuropathy, and the aging-related deterioration of dermatological tactile sense.
Meissner corpuscles are ellipsoid mechanoreceptors that are situated 150 micrometres superficially within the dermal papillae. The corpuscles have a long axis that is perpendicular to the skin's surface and are between 20 and 40 micrometres in diameter and 80 and 150 micrometres in length. Less than three corpuscles per papilla, with one corpuscle every two to four dermal papillae. The site of genesis affects the receptors' size and density.
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social monogamy is characteristic of: group of answer choices baboons chimpanzees orangutans gibbons
Social monogamy is characteristic of gibbons. Monogamy refers to a social group that includes adult men, adult women, and their offspring.
Is monogamy in mammals natural and why are gibbons called monogamous??Of course, monogamy exists in nature, as do women seeking multiple partners. But nature seems to be pushing things towards polygamy in our evolutionary branch. Only 9% of mammalian species are monogamous. Only 29% in primates. Male and female gibbons are considered monogamous. They mate for life, forming families that stay together until the offspring grow up and leave the home. A couple's bond is strengthened by the time they spend grooming each other.Is monogamy a very common social strategy for primates?Monogamous Family Groups: This group pattern is most common in humans, but rare in nonhuman primates. It occurs among small Asian apes and some New World monkeys and monkeys.
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Describe two patterns of complex inheritance and explain how they are different from mendelian.
A male who is colorblind and blooms, as well as a male who is colorblind and a normal female, are two examples of complicated inheritance patterns. There are recessive and dominant genes, according to one of Mendelian's rules. Only the dominant allele will be present if they are combined and generate a heterozygote.
One of the Mendelian laws (the third) states that each gene has both a dominant and recessive allele, and that if these two alleles are inherited together and create a heterozygote (one from the mother, one from the father), only the dominant allele's characteristic will be displayed.
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What is the function of glucagon
Glucagon counteracts the actions of insulin by by increasing blood glucose levels.
What is glucagon?Glucagon is a peptide hormone, produced by alpha cells of the pancreas. It increases concentration of glucose and fatty acids in the bloodstream. It is considered to be the main catabolic hormone of the body. It is also used as a medication to treat a number of health conditions.
Insulin is also produced from the pancreas and it's function is to regulate the level of blood glucose in the blood stream. As alpha cell produces glucagon, beta cells produces insulin.
The main function of glucagon is to counter the effect of insulin by stimulating hepatic glucose production which will increase the blood glucose level.
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a retiree, tired of minnesota winters, moves to tucson, arizona. he hopes the warm dry climate will ease his chronic respiratory problems. he soon experiences a new kind of weather, a massive dust storm. with which of the following fungi might he become infected? group of answer choices paracoccidioides brasiliensis coccidioides immitis histoplasma capsulatum blastomyces dermatitidis aspergillus fumigatus
In a massive dust storm, the retiree might become infected with b) Coccidioides immitis.
Coccidioides immitis is a fungus that lives in dry soil. In the scenario mentioned in the question, as the condition of the Tuscon, Arizona are warm and dry, hence in such areas the fungal species Coccidioides immitis will be residing.
In case of a dust storm, the Coccidioides immitis living in the soil will pass into the respiratory tract of the retiree and cause respiratory problems. the fungal infection can be serious as the person would not have been exposed to this fungus before.
The question will correctly be written as:
A retiree, tired of Minnesota winters, moves to Tucson, Arizona. He hopes the warm dry climate will ease his chronic respiratory problems. he soon experiences a new kind of weather, a massive dust storm. With which of the following fungi might he become infected? group of answer choices
a) paracoccidioides brasiliensis
b) coccidioides immitis
c) histoplasma capsulatum
d) blastomyces dermatitidis
e) aspergillus fumigatus
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Which of the following does not achieve sterilization?
Dry heat
Ethylene oxide
Formaldehyde
Autoclave
Pasteurization
Answer:
Pasteurization
Explanation:
Answer: The correct answer is Pasteurization
Explanation:
Pasteurization does not achieve sterilization because sterilization eliminates ALL microorganisms and spores, whereas after the pasteurization process the most resistant spores remain present.
Researchers performing __________ insert a weak electric current into the brain to stimulate it. a. lesioning b. esb c. eeg d. pet please select the best answer from the choices provided a b c d
Researchers performing ESB technique insert a weak electric current into the brain to stimulate it.
What does ESB contain in psychology?
Electrical stimulation of the mind (ESB) is a method which includes the creation of a susceptible electric modern into precise places withinside the mind via way of means of the use of more than one microelectrode to use brief pulses of electrical currents supposed to imitate the herbal glide of impulses via the neural pathways.
What contribution do ESBs make to our understanding of the brain?
Electrical brain stimulation (ESB) is useful in a variety of settings, including neurosurgery and experimental research. Neurosurgeons can use this procedure to help doctors determine which brain tissue needs to be removed.
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A nurse is preparing to suction a client's tracheostomy tube. Which of the following actions should the nurse plan to take? a. Apply intermittent suction during catheter insertion b. Suction the client's airway for 20 seconds with each pass c. Hyperoxygenate the client manually for 30 to 60 seconds before suctioning d. decrease suction pressure to 150 mmHg if the O2 sat levels drop during suctioning
The best action for a well trained nurse to take when preparing to suction a client's tracheostomy tube is:
Apply intermittent suction during catheter insertion.
The correct answer choice is option a.
What is meant by tracheostomy?Tracheostomy simply refers to a surgical procedure involving the opening of a hole in the trachea in order to provide alternative airways for gaseous exchange. This goes to say that, when a patient has a difficulty in breathing, tracheostomy is done to create an opening in the windpipe to allow easy flow of exchange of gases between the patient and his/her environment.
That being said, for this process to be successfully done by the healthcare provider, it is important that intermittent suction is well applied during catheter insertion.
In conclusion, it can therefore be deduced that the windpipe can be manipulated in certain health conditions.
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What type of mutation has occurred in the following example?
A.) frameshift mutation (due to deletion)
B.) nonsense mutation
C.) silent mutation
Use screenshot to answer. Which letter choice is correct? A, B, or C? Thank you
the type of mutation is frameshift mutation. Thus option A is correct.
what is frameshift mutation ?
A frameshift mutation is defined as the process of insertion or deletion of nucleotide base which are not multiples of three.
This is important type of mutation because a cell reads a gene's code in groups of three bases when making a protein.
It is caused by the addition or deletion of one or more base pairs in the DNA of a gene resulting in the translation in an unnatural reading frame from the position of the mutation to the end of the gene.
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for cross-bridge cycling to occur, which of the following must be present in the sarcoplasm? check all that apply.
For the cross-bridge cycle to occur, calcium must be present in the sarcoplasm.
The cross-bridge cycle is the basis for movement and force production in muscle cells. Each cycle of myosin binds to actin and the movement of the thin filaments involves the hydrolysis of one ATP molecule.
To activate muscle contraction, tropomyosin must change its shape, exposing myosin binding sites on the actin molecule and allowing the formation of cross bridges. This can only occur in the presence of calcium, which is stored in very low concentrations in the sarcoplasm.
Bridges cannot cross-form without calcium because calcium allows the active sites to be exposed and without exposed active sites, bridges cannot form.
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lactic acid was generated by the leg muscles after a bunch of hard squats and is now circulating in the blood which of the following is likely to occur as a compensation of this lactic acid buildup
The following are likely to occur as a compensation of lactic acid buildup:
Decreased urinary pHIncreased H+ in bloodIncreased hyperventilationIncreased H+ selectionWhat is lactic acid?
Red blood cells and muscle cells are the principal producers of lactic acid. When oxygen levels are low, it develops when the body metabolizes carbohydrates for energy.
In the body, lactic acid serves three basic purposes:
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all organisms must regulate gene expression by turning genes on and off in different cells at different times. in prokaryotic cells, related genes may be organized into operons , which can be turned on and off as a single unit. eukaryotes have more complex modes of control, includingthe packing of chromosomes, rna splicing (which can produce several mrnas from a single gene), and the control of translation. an understanding of gene regulation mechanisms has led to several interesting and important applications. for example, the loss of gene regulation can result in reproductive cloning , or out-of-control cell growth. and cancer can produce new live individuals, while therapeutic cloning can produce potentially therapeutic stem cells.
All organisms must regulate gene expression by turning genes on and off in different cells at different times: genes expression,
operons, RNA splicing, cancer, reproductive cloning, and therapeutic cloning.
Gene expression is the manner by way of which statistics from a gene are used in the synthesis of a useful gene product that enables it to supply end merchandise, protein or non-coding RNA, and in the end affect a phenotype, because of the very last effect.
Gene expression is a tightly regulated process that allows a cellular to reply to its converting environment. It acts as an on/off transfer to manipulate when proteins are made and also an extent manipulation that will increase or decreases the number of proteins made.
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Conjugation differs from reproduction because conjugation
replicates DNA
transfers DNA horizontally, to cells in the same generation
transfers DNA vertically, to new cells
transcribes DNA to RNA
Answer: B
Explanation:
Conjugation differs from reproduction because conjugation transfers DNA horizontally, to cells in the same generation. So, the correct option is B.
What is Conjugation?Bacterial conjugation is defined as the transfer of genetic material between bacterial cells by direct cell-to-cell contact or a bridge-like connection between two cells that occurs through a pilus. It is a parasexual mode of reproduction in bacteria.
The donor bacterium contains a DNA sequence known as a fertility factor or F-factor that allows the donor to produce a thin, tubelike structure called a pilus, which the donor uses to contact the recipient. does for. The pilus then draws the two bacteria together in which the donor bacterium transfers genetic material to the recipient bacterium.
Thus, Conjugation differs from reproduction because conjugation transfers DNA horizontally, to cells in the same generation. So, the correct option is B.
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Which of the following is NOT a result of increased ATP in the pancreatic beta cell?
Group of answer choices
insulin release
vesicle fusion
potassium release
calcium intake
Vesicle fusion is NOT a result of increased ATP in the pancreatic beta cell.
What is ATP?
Cells consume and store energy from adenosine triphosphate (ATP), which is the energy source. An adenine-based nitrogenous base, ribose sugar, and three serially bound phosphate groups make up the nucleoside triphosphate structure of ATP.
When macromolecules like proteins and lipids are moved into and out of the cell, ATP is an essential component of the process. Active transport mechanisms that move these molecules over a concentration gradient are powered by the energy released during ATP hydrolysis.
Therefore, Vesicle fusion is NOT a result of increased ATP in the pancreatic beta cell.
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what is the complete hemoglobin molecule composed of
The complete hemoglobin molecule is composed of the following below:
Polypeptide chains (globins)Heme groupsIron ions.What is Hemoglobin?This is referred to as a type of protein which is present in the red blood cells of almost all organisms and it comprises of heme groups and iron ions which ensures that it functions adequately in the body system.
It has a very high affinity for oxygen and is responsible for binding and transporting it to different parts of the body such as the brain, legs etc so as to prevent cell death which makes it a very important compound in the circulatory system.
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The capillaries that nourish the epithelium and absorb digested nutrients lie in the ________.
A. Muscularis mucosae
B. Serosa
C. Adventitia
D. Lamina propria
The capillaries that nourish the epithelium and absorb digested nutrients lie in the Lamina propria (Option D).
What are the capillary blood vessels?The capillaries are small vessels capable of transporting oxygen and nutrients to all cells of the body in order to perform cellular respiration, which is fundamental to obtaining energy in the form of ATP.
Therefore, with this data, we can see that the small capillary blood vessels that lie in the lamina propria and other tissues in the body are required to transport both oxygen and nutrients.
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catabolic pathways _____.
include converting complicated molecules into smaller ones through a process known as degradation.
What is the catabolic route used for?Nutrient molecules are broken down into useable forms by catabolic pathways (Food: A, B, C) (building blocks).In the this process, energy would either be released as heat or is stored into usable energy for later use.
What sort of catabolic route is that?The breakdown of food by several enzymes so it can be taken by small bowel is an illustration of a catabolic response.
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