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MCAT Biology Practice Test 2: Amino Acids and Proteins
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MCAT Biology Practice Test 2: Amino Acids and Proteins
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25 Questions

1. What is the relationship that can be seen when comparing β-pleating with the double helix?
2. If a small molecule that acts as a substrate for a specific enzyme was modified by being coupled to a larger molecule before the reaction could occur, what would be the most likely result?
3. Can a protein be used for energy storage?
4. What characteristic allows laboratory separation of proteins by immunoelectric focusing?
5. Why do extreme conditions such as an acidic pH or boiling temperatures destroy the normal function of a protein?
6. How can you tell if a substance acts as a competitive or a noncompetitive inhibitor?
7. Why are porin proteins considered integral to a membrane structure rather than merely peripheral and easily removed?
8. Complement is a series of blood proteins best associated with
9. What is an 'essential' amino acid?
10. Which of the following is NOT a way in which organisms use proteins?
11. All amino acids contain each of the following attached to the α-carbon EXCEPT
12. What a coenzyme is to increasing enzyme activity, _____ is to decreasing it.
13. Identify the following group that contains only amino acids that can form hydrogen bonds with water.
14. If a person had a C4 protein deficiency, what problems would they demonstrate?
15. Proteins are continually being simultaneously manufactured and degraded within any viable cell. However, in an animal that is breaking down more protein than it is synthesizing, what is one problem with which it must deal?
16. The presence of an enzyme such as lysine deaminase can be used in the species identification of some pathogenic bacteria. Into which enzyme class does this enzyme fall?
17. A person with a bacterial infection usually develops a fever. This fever helps protect the person by inhibiting the growth of bacteria because
18. Which of the following must be present in order for a protein-based molecular motor to function properly?
19. In what way are proteins related to hair perms?
20. One common clinical evaluation for serum protein disorders is serum protein electrophoresis (SPEP). What abnormalities does this technique detect?
21. Other than the fact that they are both proteins, in what way are enzymes and antibodies similar?
22. A competitive inhibitor
23. What is the effect of chaperones on proteins?
24. When lagging strand synthesis takes place during DNA replication, periodic nicks in the newly synthesized strand that demark the limits of an Okazaki fragment must be repaired to complete the process. Into which enzyme class does this necessary enzyme fall?
25. If whole blood was collected by venipuncture into a tube containing EDTA or citrate, which of the following could NOT be conducted on the resulting material in the tube?

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