Question

Which of the following is not a postabsorptive state reaction?

a) Breakdown of liver glycogen
b) Lipogenesis
c) Gluconeogensis using lactic acid
d) Gluconeogensis using amino acids
e) None of the above

Answer 1

Lipogenesis is not a postabsorptive state reaction; it occurs during the absorptive state when the body is converting excess energy into fat for storage.

Step-by-step explanation:

The question asks which of the following is not a postabsorptive state reaction. During the postabsorptive state, the body primarily focuses on providing energy by breaking down stored reserves, such as glycogenolysis (the breakdown of liver glycogen), and gluconeogenesis using lactic acid or amino acids to create new glucose molecules. Therefore, options a), c), and d) are reactions that occur during the postabsorptive state. However, lipogenesis (option b) is the process of synthesizing fats from acetyl CoA, which primarily occurs during the absorptive state, when the body is storing excess energy. So, b) Lipogenesis is the correct choice as it is not a postabsorptive state reaction.

Answer 2

Answer: b) Lipogenesis

Explanation:

The postabsorptive state reaction is a reaction which occurs in the state of fasting. In this postabsorptive state the digestive tract remains empty as a result of this the breakdown of the body reserves takes place.

All except the lipogenesis is not the postabsorptive state reaction. This is because of the fact that lipogenesis involves the synthesis of the fatty acids and lipids from typically the carbohydrates and other substances.