describe how enzymes act as biological catalysts that occurs at the active site. Discuss catalysis and...
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describe how enzymes act as biological catalysts that occurs at the
active site. Discuss catalysis and...
describe the role of enzymes in the catalysis of biological reactions (include in the discussion substrate,...
describe the role of enzymes in the catalysis of biological reactions (include in the discussion substrate, product, active site, lock and key model, activation energy, enzyme substrate complex, and transition state complex, and steps of enzyme action)?
"Enzymes are biological catalysts." Explain specifically how enzymes are able to accomplish this feat, and why...
"Enzymes are biological catalysts." Explain specifically how enzymes are able to accomplish this feat, and why they are necessary for living systems
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....
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...
1. do all enzymes have the same active site? why ? 2. What is meant by...
1. do all enzymes have the same active site? why ? 2. What is meant by the optimal temperature and the optimal pH for an enzyme? What biological significance do these parameters have?
15. Compare the catalytic activity of of the following enzymes: carbonic anhydrase, aspartate transcarbomylase (ATcase), restriction...
15. Compare the catalytic activity of of the following enzymes: carbonic anhydrase, aspartate transcarbomylase (ATcase), restriction enzymes and myosins. (40 points) What is unique about each active site with regards to types of amino acid residues a) located in active site and interaction with substrate? b) Briefly what is the mechanism of catalysis in each active site? Are cofactors or coenzymes required by the enzymes and if so what is the role of the cofactor/coenzyme in catalysis? c) How is...
2a. What is meant by allosteric regulation of enzymes? Include key/relevant terms (Enzyme, active site, effector,...
2a. What is meant by allosteric regulation of enzymes? Include key/relevant terms (Enzyme, active site, effector, secondary site, conformational change, affinity and other terms you feel are relevant). b. Describe/draw, in detail, two mechanisms of inhibitory allosteric regulation (aka allosteric inhibition) c. Describe/draw, in detail, two mechanisms of excitatory allosteric regulation (aka allosteric activation)
1-6 discuss the use of ATP as the energy currency of the cell (include in your...
1-6
discuss the use of ATP as the energy currency of the cell (include in your discussion the types of work performed by the cell) Discuss ATP synthesis and ATP hydrolysis: How do cells obtain the energy to synthesize ATP? Why do cells hydrolyze ATP? What do cells do with released energy obtained from the hydrolysis of ATP? discuss oxidation & reduction and the role of electron transfer in ATP synthesis discuss the role of NAD and FAD in electron...
Consider the structure and function of each of these four biological macromolecules. How does the structure...
Consider the structure and function of each of these four biological macromolecules. How does the structure of each molecule affect its function? For example, in complex carbohydrates, why would long chains of glucose be more effective for energy storage than single glucose molecules? How do the four levels of protein structure affect the shape of enzymes and why is this important for enzyme function? Explain the "lock and key" model of enzyme function using the terms substrate, active site, and...
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...
"Enzymes are biological catalysts." Explain specifically how enzymes are able to accomplish this feat, and why they are necessary for living systems
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....
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...
15. Compare the catalytic activity of of the following enzymes: carbonic anhydrase, aspartate transcarbomylase (ATcase), restriction enzymes and myosins. (40 points) What is unique about each active site with regards to types of amino acid residues a) located in active site and interaction with substrate? b) Briefly what is the mechanism of catalysis in each active site? Are cofactors or coenzymes required by the enzymes and if so what is the role of the cofactor/coenzyme in catalysis? c) How is...
1-6
discuss the use of ATP as the energy currency of the cell (include in your discussion the types of work performed by the cell) Discuss ATP synthesis and ATP hydrolysis: How do cells obtain the energy to synthesize ATP? Why do cells hydrolyze ATP? What do cells do with released energy obtained from the hydrolysis of ATP? discuss oxidation & reduction and the role of electron transfer in ATP synthesis discuss the role of NAD and FAD in electron...
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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