1. An enzyme can do all of these, EXCEPT: 2. To prevent self-digestion of exocri

Question

1. An enzyme can do all of these, EXCEPT:

2. To prevent self-digestion of exocrine cells in the pancreas, ________ are secreted.

3. The difference between the "theoretical" and "actual" yields of ATP from oxidative phosphorylation is due to the energetic expense of:

4. Energy is consumed in bringing glucose into gut epithelial cells, because:

5. The bulk movement of molecules into and out of the cell is due to the combined processes of _____________ [ Select ]                       ["oxidation", "degradation", "endocytosis"]       and _________ [ Select ]                       ["apoptosis", "condensation", "exocytosis"]         .

Explanation / Answer

1. Answer: lower the activation barrier for reverse reaction

2. Answer: zymogens

Zymogens are inactive enzymes, that are activated in the gut lumen.

3. Answer: NADH oxidation

4. Answer: Glucose is cotransported with Na, which must then be pumped out of the cell.

5. Answer: endocytosis, exocytosis

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