Homework Answers
catalyst is a special group of chemicals which makes sure the enhancement of the rate of both forward and backward reaction in any chemical reaction. catalyst provides a surface for the reaction to occur. catalyst can also act as a bridge between the reactant and the intermediate. similarly there are certain chemicals in our body which functions in same manner. those chemicals in human body are called enzymes. enzymes changes their shape according to the transition state of the reaction.
lock and key model suggest that there is complementary shape on enzyme surface which aids them to bind with the complementary reactant surface and thereby sticks together. in this way reaction proceeds on favourable surface.
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"Enzymes are biological catalysts." Explain specifically how enzymes are able to accomplish this feat, and why...
describe how enzymes act as biological catalysts that occurs at the active site. Discuss catalysis and...
describe how enzymes act as biological catalysts that occurs at the active site. Discuss catalysis and competitive inhibition. how do each use the active site of the protein? what is an active site and why is it so inportant to biological catalysis.
Which of the following statements is false? O Most enzymes are proteins. Enzymes are biological catalysts...
Which of the following statements is false? O Most enzymes are proteins. Enzymes are biological catalysts that speed up reactions O a single type of enzyme can facilitate many different types of reactions O Enzymes can be denatured at extremes of temperatre and pH.
Enzymes are biological catalysts and Unction by A) increasing the free energy in a system. B)...
Enzymes are biological catalysts and Unction by A) increasing the free energy in a system. B) lowering the activation energy of a reaction. C) lowering entropy in a system. D) increasing the temperature near a reaction. E) altering the equilibrium of a reaction. Which of the following contributes to the specificity of enzymes? A) Each enzyme has a wide range of temperature and pH optimum B) Each enzyme has an active site that interacts with many C) Substrates themselves may...
2. Enzymes are important biological molecules and they act as catalysts for specific chemical reactions. Their...
2. Enzymes are important biological molecules and they act as catalysts for specific chemical reactions. Their biological function is determined by their 3 dimensional shape and the functional groups present in the active site. (a) What are the main mechanisms by which an enzyme increase the rate of a reaction? (b) What is a cofactor in an enzyme mediated reaction? (c) Give the name of a cofactor (structure if possible) and indicate the type of reaction that it facilitates. 3....
Explain the collision model and why concentration and temperature affect rate Explain how catalysts affect reaction...
Explain the collision model and why concentration and temperature affect rate Explain how catalysts affect reaction rate. Draw and interpret reaction energy diagrams – catalyzed, uncatalyzed, and multi-step.
Explain how enzymes are able to differentiate between two molecules that have similar shapes and chemical...
Explain how enzymes are able to differentiate between two molecules that have similar shapes and chemical groups like valine and threonine.
Give the biological definition of species and explain using two examples why it cannot be applied...
Give the biological definition of species and explain using two examples why it cannot be applied to all living organisms.
6. One class of tool molecules built by biological organisms that we discussed are "catalysts." Which...
6. One class of tool molecules built by biological organisms that we discussed are "catalysts." Which of the following is the most accurate and complete statement about such biogenic catalysts? a. Biogenic catalysts allow reactions that could never occur (even occasionally) in their absence; thus, biological chemistry is qualitatively different than all non-biological chemistry. b. Biogenic catalysts dramatically accelerate a tiny subset of all possible chemical reactions that specifically serve the replication of the organism's design information; biological chemistry is,...
What is neuroplasticity? Define it and how it applies to learning. Specifically, are we able to...
What is neuroplasticity? Define it and how it applies to learning. Specifically, are we able to continue to lean well into our elder years? Why or why not?
Topic: Lactase persistence, enzymes, and genetic expression We started this term looking at the persistence of...
Topic: Lactase persistence, enzymes, and genetic expression We started this term looking at the persistence of the enzyme lactase, which breaks down a specific sugar in milk. Lactase persistence shows interesting global distribution patterns due to evolution and natural selection. The lactase enzyme acts like many other biological catalysts. Write an essay about lactase persistence and the function and expression of the lactase enzyme. Make sure to address: Define evolution and the selection pressure that lead to diversity in lactase...
Which of the following statements is false? O Most enzymes are proteins. Enzymes are biological catalysts that speed up reactions O a single type of enzyme can facilitate many different types of reactions O Enzymes can be denatured at extremes of temperatre and pH.
Enzymes are biological catalysts and Unction by A) increasing the free energy in a system. B) lowering the activation energy of a reaction. C) lowering entropy in a system. D) increasing the temperature near a reaction. E) altering the equilibrium of a reaction. Which of the following contributes to the specificity of enzymes? A) Each enzyme has a wide range of temperature and pH optimum B) Each enzyme has an active site that interacts with many C) Substrates themselves may...
2. Enzymes are important biological molecules and they act as catalysts for specific chemical reactions. Their biological function is determined by their 3 dimensional shape and the functional groups present in the active site. (a) What are the main mechanisms by which an enzyme increase the rate of a reaction? (b) What is a cofactor in an enzyme mediated reaction? (c) Give the name of a cofactor (structure if possible) and indicate the type of reaction that it facilitates. 3....
Explain how enzymes are able to differentiate between two molecules that have similar shapes and chemical groups like valine and threonine.
Topic: Lactase persistence, enzymes, and genetic expression We started this term looking at the persistence of the enzyme lactase, which breaks down a specific sugar in milk. Lactase persistence shows interesting global distribution patterns due to evolution and natural selection. The lactase enzyme acts like many other biological catalysts. Write an essay about lactase persistence and the function and expression of the lactase enzyme. Make sure to address: Define evolution and the selection pressure that lead to diversity in lactase...
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