20. In humans, gluconeogenesis: (A) can result in the conversion of protein into blood glucose. (B) helps to reduce blood glucose after a carbohydrate-rich meal. (C) is activated by the hormone insulin (D) is essential in the conversion of fatty acids to glucose. (E) requires the enzyme hexokinase.

18. A molecule such as 2,4-dinitrophenol (2,4-DNP) works to uncouple the proton gradient. Which of the following is true about 2,4-DNP? (A) 2,4-DNP is protonated in the matrix and deprotonated in the intermembrane space. (B) The presence of an uncoupler results in an increase in the activity of the TCA cycle and electron transport. (C) 2,4-DNP is a very ineffective uncoupler because its hydrophobic structure prevents it from effectively crossing lipid bilayer membranes. (D) 2,4-DNP has been used as a very effective diet aid for the past 70 years. (E) None of the above is correct.

20. In humans, gluconeogenesis: (A) can result in the conversion of protein into blood glucose. (B) helps to reduce blood glucose after a carbohydrate-rich meal. (C) is activated by the hormone insulin (D) is essential in the conversion of fatty acids to glucose. (E) requires the enzyme hexokinase.

其他試題

20. In humans, gluconeogenesis:
(A) can result in the conversion of protein into blood glucose.
(B) helps to reduce blood glucose after a carbohydrate-rich meal.
(C) is activated by the hormone insulin
(D) is essential in the conversion of fatty acids to glucose.
(E) requires the enzyme hexokinase.