Which of the following are characteristics exhibited by an enzyme? A. Specificity B. Optimal pH C....
Which of the following are characteristics exhibited by an enzyme?
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A. Specificity |
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B. Optimal pH |
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C. Optimal temperature |
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D. All of these |
Homework Answers
ans. D. all of these
reason- enzymes are specific for specific target. they are sensitive to temperature and ph, ie they act on optimal temperature and Ph, since they are formed by proteins/ long peptides.
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Which of the following are characteristics exhibited by an
enzyme?
A. Specificity
B. Optimal pH
C....
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
POSTLAB QUESTIONS Name: Masa Ahmad 1. What were the optimal pH, temperature and enzyme concentration for...
POSTLAB QUESTIONS Name: Masa Ahmad 1. What were the optimal pH, temperature and enzyme concentration for catalase? 2. Define the term denatured. Denatured is the Breaking the bonds on the molecules such as proteins 3. Which condition tested in lab denatured the catalase? 4. Why does product production slow down over time, even at optimal pH, temperature and enzyme concentration? 5. Amylase is an enzyme that is produced in human salivary glands and secreted into the mouth to aid in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
Enzyme Specificity 1. The following cases show the products form when a reaction was carried out...
Enzyme Specificity 1. The following cases show the products form when a reaction was carried out in soltion (non- enzymatic) and carried out enzymatically. For each case state the type of specificity exhibited by the enzyme nonenzymatic: enzymatic: nonenzymatie: Кін NH enzymatic:
All of the following statements about the specificity constant of an enzyme are true except which...
All of the following statements about the specificity constant of an enzyme are true except which one? It is specific to a certain substrate. It is equal to ratio kcat/Km for the substrate, It is equal to the number of times an enzyme can catalyze a reaction per second. It has a maximum value around 10^8 - 10^9 /Ms, at which it is effectively limited by diffusion of the substrate to the active site
23. Every enzyme functions best at A. high pH. B. low pH. C. optimum pH. D....
23. Every enzyme functions best at A. high pH. B. low pH. C. optimum pH. D. neutral pH. 24. Which of the following is an example of an enzyme-substrate complex? A. glucose B. glucase C. vitamin D D. sucrose-sucrase 25. An example of an enzyme is A. maltose. B. fructose. C. hydrogen peroxide. D. dehydrogenase. 26. Which of the following is (are) component(s) of all cells? A. plasma membrane B. DNA C. cytoplasm D. nucleus E. a, b, and c...
4. Every enzyme has an optimal pH at which they function, which can vary widely for...
4. Every enzyme has an optimal pH at which they function, which can vary widely for many different proteins. Some enzymes function best at low pH while others function best at high pH. Provide an explanation as to why this is and include in your answer a discussion of protonation states (specifically within the active sites). (2pts)
11. Local conditions can affect the specificity of an enzyme for its substrate, and thus the...
11. Local conditions can affect the specificity of an enzyme for its substrate, and thus the enzyme's catalytic activity. Which of the following alterations would be least likely to affect an enzyme in this manner? a) Increased temperature b) Increased substrate concentration c) increased H concentration d) Increased pH e) none of the above True / False: (3 pts each) 12. The Gl tracts of carnivores are longer and more specialized than those of herbivores. 13. Micelles are formed when...
enzyme concentration decreases. Amylase is an enzyme that is produced in human salivary glands and secreted...
enzyme concentration decreases. Amylase is an enzyme that is produced in human salivary glands and secreted into the mouth to aid in starch digestion. a. What is the substrate in this reaction? b. Where on the enzyme will the substrate bind? c. Based on the fact that this enzyme is found in our bodies, what do you hypothes would be the: optimal temperature for amylase? optimal pH for amylase? d. What do you think happens to the amylase when it...
A chemistry student desired to study sulfur. Sulfur exhibited the following characteristics with oxygen: (a) It...
A chemistry student desired to study sulfur. Sulfur exhibited the following characteristics with oxygen: (a) It reacts with oxygen to produce sulfur dioxide. (b) It also reacts with oxygen to produce sulfur trioxide. (c) The sulfur trioxide produced can react with water to produce sulfuric acid. (d) The sulfur dioxide produced can react with water to produce sulfurous acid. Identify steps (a), (b), (c), and (d) as chemical or physical changes. Please give rationales for your answers.
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
POSTLAB QUESTIONS Name: Masa Ahmad 1. What were the optimal pH, temperature and enzyme concentration for catalase? 2. Define the term denatured. Denatured is the Breaking the bonds on the molecules such as proteins 3. Which condition tested in lab denatured the catalase? 4. Why does product production slow down over time, even at optimal pH, temperature and enzyme concentration? 5. Amylase is an enzyme that is produced in human salivary glands and secreted into the mouth to aid in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
Enzyme Specificity 1. The following cases show the products form when a reaction was carried out in soltion (non- enzymatic) and carried out enzymatically. For each case state the type of specificity exhibited by the enzyme nonenzymatic: enzymatic: nonenzymatie: Кін NH enzymatic:
All of the following statements about the specificity constant of an enzyme are true except which one? It is specific to a certain substrate. It is equal to ratio kcat/Km for the substrate, It is equal to the number of times an enzyme can catalyze a reaction per second. It has a maximum value around 10^8 - 10^9 /Ms, at which it is effectively limited by diffusion of the substrate to the active site
23. Every enzyme functions best at A. high pH. B. low pH. C. optimum pH. D. neutral pH. 24. Which of the following is an example of an enzyme-substrate complex? A. glucose B. glucase C. vitamin D D. sucrose-sucrase 25. An example of an enzyme is A. maltose. B. fructose. C. hydrogen peroxide. D. dehydrogenase. 26. Which of the following is (are) component(s) of all cells? A. plasma membrane B. DNA C. cytoplasm D. nucleus E. a, b, and c...
4. Every enzyme has an optimal pH at which they function, which can vary widely for many different proteins. Some enzymes function best at low pH while others function best at high pH. Provide an explanation as to why this is and include in your answer a discussion of protonation states (specifically within the active sites). (2pts)
11. Local conditions can affect the specificity of an enzyme for its substrate, and thus the enzyme's catalytic activity. Which of the following alterations would be least likely to affect an enzyme in this manner? a) Increased temperature b) Increased substrate concentration c) increased H concentration d) Increased pH e) none of the above True / False: (3 pts each) 12. The Gl tracts of carnivores are longer and more specialized than those of herbivores. 13. Micelles are formed when...
enzyme concentration decreases. Amylase is an enzyme that is produced in human salivary glands and secreted into the mouth to aid in starch digestion. a. What is the substrate in this reaction? b. Where on the enzyme will the substrate bind? c. Based on the fact that this enzyme is found in our bodies, what do you hypothes would be the: optimal temperature for amylase? optimal pH for amylase? d. What do you think happens to the amylase when it...
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