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Bio Notes Chapter 1-7
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Chapters 1-7 with chapter quizzes for practice
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Quiz Lecture Questions (L5-7)1. In the following series of statements, select the FALSE/incorrect statement.
- The purpose of receptor membrane proteins is to maintain cell shape and structure
2. Which of the statements is a correct description of the role of enzymes in catalyzing
biochemical reactions?
- Enzymes stabilize the transition state and decrease its free energy
3. What type of molecule is sometimes found spanning a cell's plasma membrane with part
of the molecule on one side of the membrane, partly embedded in the membrane, and part
on the other side?
- Protein
4. The process of diffusion requires:
- The random movement of molecules
5. In the following series of statements, three are correct and one is incorrect. Which
statement is incorrect?
- The growing polypeptide remains in the P site throughout the translation
6. Which one of the statements about translation in eukaryotes is correct?
- An initiation complex recognizes a 5' cap structure and scans for the first AUG
triplet
7. Which eukaryotic cell structure plays a role in protein trafficking and sorting?
- Golgi apparatus
8. During __. large molecules are broken down and energy is released.
- Catabolism
9. The energy of activation (Ex) of a reaction is:
- The energy input needed to reach the transition state
10. The transition state is that portion of the progress of a chemical reaction with a large
amount of energy found in reactions.
- Both endergonic and exergonic
11. The bond that forms between amino acids:
- Connects amino groups and carboxyl groups of adjacent amino acids
12. Which of the answer choices is not considered to be a part of the endomembrane system?
- Mitochondria
13. Which one of the types of proteins interacts directly with a stop codon?
- Release factor
14. Which one of the types of proteins interacts directly with a stop codon?
- Phospholipids with long-chain, saturated fatty acids
15. Molecules that are and are able to move across the cell membrane via
simple diffusion.
- Hydrophobic; small
16. bind to the active site of an enzyme.
- Substrates and some types of inhibitors
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