Conclusion: Catalase (an enzyme) breaks down hydrogen peroxide (substrate) into water and oxygen. Using a calibrated test tube (one with measurements on it the rate of the reaction can be measured by the height of the bubbles formed. Design an experiment that tests the effect of catalase activity at the following pH's: 1,3,5,7,9,11, and 13 :
- State a hypothesis
- Describe the conditions of the experimental and control group
- Identify the independent, dependent and controlled variables
- Describe results that support your hypothesis
__________________________________________________________________________________________________________________________________
Answers
The enzyme catalase degrades (break down) harmful hydrogen peroxide into water and oxygen. This can be seen from the bubbles in the graduated test tube. The activity of enzyme catalase can be measured.
What kind of enzyme is catalase?Catalase or peroxidase is an enzyme class of oxidoreductases that catalyze the transfer of electrons from one molecule, a reducing agent (also called an electron donor), to another molecule (an oxidizing agent, also called an electron acceptor).What is the importance of catalase and what happens when it is deficient?Catalase is an important enzyme that uses hydrogen peroxide, a non-radical ROS, as a substrate. This enzyme breaks down and neutralizes hydrogen peroxide to maintain optimal molecular levels within cells. It is also essential for cell signaling processes.Deficiency of this enzyme can cause hydrogen peroxide to accumulate to toxic levels in certain cells. For example, hydrogen peroxide produced by bacteria in the mouth can accumulate and damage soft tissues, causing mouth sores and gangrene.To learn more about enzyme catalase visit:
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Related Questions
How is the study of mitosis affected scientists knowledge of cancer Brainly?
Answers
Answer:
Explanation:
The correct answer is b) It led to an understanding of how cancer cells divide so rapidly.
Using the following data, calculate the
population growth rate for Zambia:
CBR= 2.9%, Immigration = 1%,
CDR = 2.1%, Emigration = 1%
(Portions of the numeric data are factual.)
HINT: (CBR + Immigration) - (CDR + Emigration) = Population Growth Rate
A. 82%
C. -0.00802%
B. 0.8%
D. 8.025%
Answers
Population growth rate for Zambia is 0.8 % when CBR= 2.9%, Immigration = 1%,CDR = 2.1%, Emigration = 1% are as given above.
What is CBR?The crude birth rate is the number of live births per 1,000 of the population at the midyear census. long explanation The crude birth rate is the number of live births per 1,000 of the expected population at the midyear mark.
Given data;
CBR= 2.9%, Immigration = 1%,
CDR = 2.1%, Emigration = 1%
Now to find the Population Growth Rate use the given formula;
(CBR + Immigration) - (CDR + Emigration) = Population Growth Rate
Population Growth Rate= (CBR + Immigration) - (CDR + Emigration)
the current population of Zambia =18.92 million
now
CBR= 2.9% of 18.92 million=548680
CDR = 2.1% of 18.92 million=397320
Immigration = 1% of 18.92 million=189200
Emigration = 1% of 18.92 million=189200
now putting the values on eq.
Population Growth Rate= (CBR + Immigration) - (CDR + Emigration)
Population Growth Rate= (548680 +189200)-(397320 + 189200 )
Population Growth Rate=151360 *100/18.92 million
Population Growth Rate=0.8%
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How do you determine the number of phenotypes?
Answers
The no. of phenotypes can be determined by we have a take a observe the alleles of the figure organisms and estimate how frequently the ones genes may be exhibited through the offspring.
Since every figure has 4 one of a kind mixtures of alleles withinside the gametes, there are 16 feasible mixtures for this cross.
There is various phenotypes, however maximum of the offspring are comparable in shadeation to the parents. If n = the quantity of gene pairs, then (2n + 1) will decide the whole quantity of classes of phenotypes. To discover a phenotypic ratio , Most times, we understand what the alleles will explicit and the way they may look.
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Which of the following is NOT a basic need of plants in order to live?
A.Sunlight
B.Carbon Dioxide
C.Oxygen
D,Water
Answers
Answer: C
Explanation:
What does a gene contain the instructions to make?
Answers
Answer:
Molecules called proteins
Explanation:
A gene is a short section of DNA. Your genes contain instructions that tell your cells to make molecules called proteins. Proteins perform various functions in your body to keep you healthy. Each gene carries instructions that determine your features, such as eye colour, hair colour and height.
What are the three 3 types of chronological order?
Answers
The three types of chronological orders are: Chronological, Sequential, and Consecutive.
Chronological order is the one where things are arranged one after the other in the sequence in which they occurred. It is considered to be the easiest pattern in orders. Chronological order is considered similar to going down the stairs.
Sequential order is the type of order in which things are arranged according to numbers or alphabets. It is the step-by-step directions of any event or situation from the first step to the last one. It is different from chronological order as chronological order is more concerned with time.
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Suppose there were many chloroplasts in the cells of the upper epidermis. How would that change the amount of sunlight reaching the chloroplasts in the palisade layer?
Answers
Suppose there were many chloroplasts in the cells of the upper epidermis. The change the amount of sunlight reaching the chloroplasts in the palisade layer is that: The palisade mesophyll chloroplasts would receive less light if the top epidermis contained chloroplasts since they would absorb the majority of the sun's energy.
Do chloroplasts exist in the top epidermis?A single layer of cells, with few or no chloroplasts, makes up this layer. Since the cells are relatively transparent, most of the light that reaches them can reach the cells below. A waxy, waterproof cuticle covers the upper surface of the leaf, preventing water loss from the leaf.
Therefore, Palisade cells are the ones with the most chloroplasts per cell, making them the main location of photosynthesis in the leaves of plants that have them. Photosynthesis is the process by which light energy is transformed into the chemical energy of carbohydrates.
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please help Think about the effect that NASA technologies have on your everyday life. What’s your opinion of the reciprocal relationship that NASA has with the public? Do you think this relationship is harmful or helpful? How might reduced government funding of NASA affect you as a consumer? Give evidence and reasoning for each of your claims.
earth and space science
Answers
Our reciprocal relationship with NASA and its technologies are more helpful than harmful to our life. The work of NASA makes us understand the earth we live and even their technologies allow us to see how the world and space look even if we just see from the screen.
But, not many people knew that some innovation that become common things in our daily life was affected by space technology. One of them is the baby formula; when NASA was researching the algae potential as the agent of recycling for long-duration space travel, they found out that nutrient-rich algae contained Docosahexaenoic Acid (DHA) and Arachidonic Acid (ARA) which is an excellent dietary supplement for the development of mental and visual of an infant. Imagine how much people were helped by these discoveries because a lot of mothers couldn't breastfeed their babies and needed baby formula. Moreover, don’t forget the internet we use today also came from the space technology of NASA.
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gives off carbon dioxide
Answers
Scientific Method
Define the following:
a. Indegendent Variable:
b. Dependent Variable:
c. Control Variable:
d. Controlled experiment
e. Hypothesis:
1. You have measured the rate at which a fish breaths at various temperatures by courting the rate at which its gills open. The data table is shown below. Create a line graph depicting the results
a. What is the independent variabie? why
b. The dependent variable? Explain whiy.
c. What happens to breathing rate with increase in temperature?
d. Identity at least 3 control variabios in this experiment.
e. What do you think would happen if you raised the temperature even more? Why would it be a bad ides to do this?
Biochemistry
2. Fill in chart below.
Answers
The independent variable is expected to influence the dependent variable. The dependent variable is what happens as a result of the independent variable. A control variable is one that is held constant or finite in a research study. In a controlled experiment, all variables except the independent variables are controlled or held constant so as not to affect the dependent variable. A hypothesis is a proposed explanation for a phenomenon.
Why are hypotheses important in research?A hypothesis is an idea put forward for the purpose of discussion, that can be tested to see if it is true.Hypotheses not only allow researchers to discover relationships between variables, but they can also predict relationships based on theoretical guidelines and empirical evidence.Hypothesis formulation requires a thorough understanding of the research topic and a comprehensive review of the previous literature.How do you identify your hypothesis?Step 1: State your null and alternative hypotheses.
Step 2: Collect data.
Step 3: Conduct statistical tests.
Step 4: Decide whether to reject the null hypothesis.
Step 5: Present the findings.
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What heat source drives the Water Cycle? A Ocean B) Wind D Moon Sun
Answers
Answer:
D) Sun
Explanation:
The water cycle is driven primarily by the energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.
The water cycle's evaporation process is driven by the sun. As the sun interacts with liquid water on the surface of the ocean, the water becomes an invisible gas (water vapor).
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What is distribution of traits?
Answers
The alleles of the various genes that each individual chromosome carries are mixed and matched traits with regard to one another, resulting in a distribution of traits.
When comparing populations, differences are typically seen as variations in the frequency distributions of the states (or kinds) of a certain feature (or set of traits). As a result, if two or more populations exhibit the same trait states at the same rates, they are said to be identical. A population's variance and pattern of attributes are influenced by both genetic and environmental variables. During meiosis, chromosomes can switch sections, causing mutations brought on by environmental factors, mistakes in DNA replication, or both.
As a result, we can infer that the alleles of the numerous genes that each chromosome carries are mixed and matched traits in relation to one another, producing a distribution of traits.
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What is the correct order of events in mitosis ?
Answers
Prophase, Metaphase, Anaphase, & Telophase are the proper phases of Mitosis.
A single cell divides into 2 daughter cells during the mitotic process. Two main processes make up mitosis: cytokinesis, or cytoplasm division, and karyokinesis, or nucleus duplication.
The separation of the daughter cells comes next. Prophase, Mitotic phase, Anaphase, & Telophase are the four phases of Karyokinesis.
Prophase: During prophase, chromosomes may be seen, centrioles can move to the poles, the nucleolus and nuclear membrane disappear, and spindle configuration takes place. Chromosomes align completely around the center during metaphase. Chromatids separate during anaphase and go to the opposing poles through spindle fibers. This makes it possible for every daughter cell to possess a replica of each chromosome from the mother cell. Chromosomes disappear during the telophase, during which the nuclear membrane repairs, nucleoli resurface, the spindle disappears, and centrioles divide.To know more about mitosis at
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How often should flea treatment be given?
Answers
Flea treatment should be given as often as every few days to every few weeks.
Flea, the common call for the order Siphonaptera, consists of 2,500 species of small flightless insects that stay as external parasites of mammals and birds. Fleas live by way of consuming the blood of their hosts.
However, the flea species that usually trouble puppies and cats don't stay on humans. Dogs and cats have much extra hair than human beings. Fleas like animals with a whole lot of fur due to the fact that fur lets them cover easily.
When searching out meals, there are a number of factors that could assist a flea hit upon a suitable host however they're broadly speaking attracted to visual and thermal stimuli.
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Where are the 3 checkpoints in the cell cycle?
Answers
G1 checkpoint is near the end of G1 (close to the G1/S transition). G2 checkpoint is near the end of G2 (close to the G2/M transition). Spindle checkpoint is partway through M phase, and more specifically, at the metaphase/anaphase transition.
Mitosis, also known as the M phase, is the process of making two identical daughter cells through cytokinesis and nuclear division. Two daughter cells that are diploid are created as a result of cell division and mitosis (M). M phase refers to either mitosis or cell division (also known as cytokinesis), whereas G1, S, and G2 refer to the other three stages.
A stage of cell division is called metaphase (mitosis or meiosis). Typically, each chromosome is dispersed throughout the cell nucleus. In metaphase the process of dividing, a cell's chromosomes compress and travel toward the center while the nucleus disintegrates.
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What are the three types of fragmentation?
Answers
The three types of fragmentation are There are 3 exclusive however associated varieties of fragmentation: outside fragmentation, inner fragmentation, and facts fragmentation, which may be found in isolation or conjunction.
Fragmentation is frequently familiar in go back for upgrades in pace or simplicity Internal fragmentation happens while the reminiscence is shipped into fixed-sized blocks. If the reminiscence allotted to the manner is barely large than the reminiscence demanded, then the distinction among allotted and demanded reminiscence is referred to as inner fragmentation.
External fragmentation happens every time a technique of dynamic reminiscence allocation takes place to allocate a few reminiscence and go away a small quantity of unusable reminiscence. The overall amount of the reminiscence to be had is decreased appreciably in case there is an excessive amount of outside fragmentation.
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When using the three compartment sink items must be immersed in the sanitize sink for seconds?
Answers
The water temperature must be at least 171°F and the items must remain submerged for a minimum of 30 seconds.
Rinse, scrape or soak all items before washing.Wash items in the first sink in a detergent solution. Use a brush, cloth or scrubber to loosen and remove soil. The water temperature in the first compartment should be at least 110°F. Use a thermometer to check the water temperature. Replace the detergent solution when the suds are gone or when the water appears dirty.Rinse the washed items in the second compartment by either immersing them in clean rinse water or by spraying them. Make sure all traces of food and detergent are removed. The water temperature in the second compartment should also be at least 110°F.To sanitize the washed and rinsed items, immerse them in hot water in the third compartment. If you are going to use a hot water rinse, the water temperature must be at least 171°F and the items must remain submerged for a minimum of 30 seconds. If you use a chemical sanitizer, the sanitizer must be mixed at the proper concentration. Follow the manufacturer’s directions to ensure proper concentration. All washed, rinsed and sanitized items should be placed on a clean drainboard to air dry.To learn more about three compartment sink visit here:
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Describe ways to maintain fish as renewable resources and explain how scientific data are used to manage fish stocks?
Answers
Answer:
Electronic sonar and Global Positioning Systems are used to locate the fish. Ships cross the area, dragging huge nets at the right depth to catch them. The usable catch is often cut, packaged, and frozen right on board. Ships can remain on the ocean for several weeks before returning to home port.
Stock assessments are scientific processes that analyze available data using statistical models to produce management advice. That management advice estimates sustainable harvest levels maximizing fishery removals while protecting stocks’ long-term health.
how is the expression of polygenic traits determined
Answers
The polygenic traits determined by the expression of its of both. Traits may be qualitative (which include eye color) or quantitative (which include peak or blood pressure).
Polygenic developments are decided through the interactions among numerous exclusive genes, which show incomplete dominance.
There are many exclusive allele combos can probable be constituted of mother and father which might be heterozygous for a polygenic trait managed through 3 exclusive genes with allele pairs Polygenic developments are expressed through the interplay of a couple of genes and the environment.
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what type of mutation error has occurred to cause the disorder shown
Answers
Substitution mutation is a type of mutation that has occurred to cause the disorder of sickle cell anemia.
Sickle cell anemia is caused by a substitution in the beta-hemoglobin gene, which alters a single amino acid in the protein produced. It is a heredity disease inherited by only one parent or both. If the gene is inherited by only one parent the resulting offspring is known as carrier.
It is a type of mutation in which a nucleotide is replaced by another nucleotide and alters the whole structure of protein. Sickle cell anemia is a disease in which Substitution mutation occurs. It is an inherited blood disorder it interferes the deliverance of oxygen to tissues. Cells of sickle cell hemoglobin are stiff as compared to the normal hemoglobin cells. Their life is also very short as compared to the normal cells. They live up about 10 to 20 days only.
Your question is incomplete but most probably your full question was
what type of mutation error has occurred to cause the disorder shown
sickle cell anemia
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Differences in the physical traits of organisms is a(n) __________________.
Answers
Differences in the physical traits of organisms is a(n) Variation.
What is variation?In biology, variation is the difference in cells, individual organisms or characters or physical traits among individuals of any species caused by either genetic makeup or an effect of environmental factors. Physical traits are those distinguishable characteristics found in organisms.
Genetic variations can emerge from variant genes known as mutations or processes where genes are rearranged as cells are getting ready to divide which is called genetic recombination. When gene activities are altered by variation, they can introduce different physical traits in organisms.
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Which property is shared by the cells of all living things quiz?
Answers
All living things cell show the property of growth, reproduction, internal or external cell movement and energy.
1. All cells show growth, where it increases in size and number. Growth occurs throughout the lifespan.
2. Cells also show reproduction, mostly cell do it by mitosis where 1 parent cell give rise to 2 daughter cell and 2 give rise to 4.
3. Cell also shows both external or internal movements, like externally flagella, cilia etc. and internally by the means of cytoplasm.
4. synthesis of ATP is done by cells for energy production. Energy by cells is needed to function normally and show the above living characteristic.
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I need help with this assignment bio question
Answers
(a) The rate of photosynthesis will decrease because even though Hydrilla plants require less sunlight but the requirement is necessary.
(b) Three limiting factors are- Light intensity, Temperature and [tex]CO_{2}[/tex].
(c) The bubbles represent the evolution of oxygen.
What is Photosynthesis?
Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can subsequently be released through cellular respiration to power the organism's activities.
What is the Hydrilla plant?
The hardy, quickly-growing perennial herb Hydrilla has long, slender stems that can reach lengths of up to 7 meters (23 ft). The tiny, lance-shaped or oblong leaves are clearly toothed and grow in pairs or whorls of three to eight. Also, they are aquatic and always remain submerged in water, they lack stomata and use their body for photosynthesis.
The rate of photosynthesis will decrease because even though Hydrilla plants require less sunlight but the requirement is necessary. Three limiting factors are- Light intensity, Temperature and [tex]CO_{2}[/tex]. The bubbles represent the evolution of oxygen.
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What is the only way that
any two humans could
have identical DNA?
A. if they are related
B. if they are twins this
C. if they have the same genetic disease
D. if they came from the same mother
Answers
Answer: B, if they are twins
Explanation: The only possible 100% DNA match is found when you have the EXACT same genes as someone else, which can only be found in identical twins.
What is the correct order of steps in the cell cycle ?
Answers
The cell cycle is a four stage procedure
Gap 1, or G1 phase Synthesis, or S phase Gap 2, or G2 phase Mitosis, or M phaseThe period between cell divisions is represented by the stages G1, S, and G2, which together make up interphase. An individual cell "decides" whether or not to join the cell cycle and divide based on the stimulatory and inhibitory signals it receives.
Checkpoint signalling systems and specialised proteins are used by cells to guarantee correct cell cycle progression. DNA damage is checked for before and after S phase at checkpoints at the end of G1 and the start of G2. Similar to this, a checkpoint in mitosis makes sure that the chromosomes are properly separated in anaphase before the cell's spindle fibers are properly aligned in metaphase.
Hence, cell cycle is sequence of event in organized manner.
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how to know if you carry the red hair gene
Answers
The test will examine each parent's DNA for evidence of the MC1R gene, which causes redheadedness. "We can... detect if an individual is a carrier of any of the three prevalent redhead variations in the gene MC1R using a simple saliva test to determine deep ancestry," stated Dr.
What causes red hair?
Red hair is a recessive hereditary feature induced by a sequence of mutations in the MC1R gene on chromosome 16. Because red hair is a recessive feature, it must be inherited from both parents.
As a result, there are significantly more persons harboring the red hair mutation than have red hair. Redheads account for around 13% of the Scottish population, with 40% carrying at least one mutation.
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How are differentiated cells different?
Answers
It is the procedure by which one type of cell transforms into another.Cell differentiation can result in changes to a cell's size, shape, membrane potential, metabolic processes, and responsiveness.
What distinguishes differentiated cells from one another?Gene expression alterations lead to cell differentiation.
This happens when various environmental signaling molecules activate or repress certain transcriptional factors that are required to express particular genes in the DNA.
What does the differentiation of cells mean?Pay attention to how it sounds.the process through which newly formed, immature (unspecialized) cells develop their own unique properties and mature into their specialized form and function.
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Why is mitosis important 3 reasons?
Answers
Expansion and development. Mitosis is the process by which an embryo develops after a gamete from meiosis has united with another gamete to form an embryo. Cell division is essential for organism development, tissue repair, healing and regeneration, and reproduction. Asexual reproduction is a form of reproduction in which the number of chromosomes or the fusion of gametes are not altered.
Multicellular creatures depend on mitosis to reproduction of new cells for growth and to replace damaged or worn-out cells, such as skin cells. Mitosis serves as Mitosis the main asexual reproductive mechanism for a large number of single-celled organisms.
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which principle underlies cognitive therapy
Answers
Cognitive-behavioral therapy (CBT) is a type of talking therapy that focuses on rationalizing irrational thoughts and behaviors.
The Fundamentals of Cognitive Behavioral Therapy The central idea behind CBT is that your thoughts, feelings, and behavior all have an impact on one another. You can replace negative thought patterns with more positive or helpful ones by using specific cognitive behavioral therapy (CBT) techniques.
Cognitive therapy is based on the theory that people who suffer from depression, anxiety, or other emotional disorders have maladaptive information processing patterns and behavioral difficulties. Recognizing negative or distorted automatic thoughts.
The following are some examples of CBT techniques: Putting yourself in situations that make you anxious, such as going into a crowded public place. Journaling about your thoughts and feelings about your thoughts throughout the day.
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Which plant is poisonous plant?
Answers
A poisonous plant is considered poisonous if it can injure or kill an organism when it is touched or consumed in sufficient amounts, or if it may cause a toxic and/or lethal response. When enough of a material is absorbed, breathed, or consumed by an organism, it becomes a poison and causes damage to the organism.
These poisonous plant include tulips, certain irises, agapanthus, autumn crocus, clivia, daffodil, hippeastrum, hyacinth, and lily of the valley. Bush tucker uses the vivid yellow and red seeds, but only organism after the poisonous plant have been leached away. If organism consume them straight from the branch, they are toxic.
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