Question

In gluconeogenesis, the regulatory enzyme fructose 1,6-bisphosphatase is inhibited by AMP.

Group of answer choices

True

False

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Question 471 pts

Ethanol metabolism in the liver results in the increase of the NADH/NAD⁺ ratio in the liver cytosol.

Group of answer choices

True

False

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Question 481 pts

Complete oxidation of glucose-6-phosphate to CO₂ in order to generate more NADPH necessitates the following reaction paths:

(i) Glucose-6-P ® ® Ribulose-5-P

(ii) Ribose-5-P ® ® Fructose-6-P + Glyceraldehyde-3-P

(iii) Glyceraldehyde-3-P ® ® Glucose-6-P

Group of answer choices

True

False

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Question 491 pts

Gluconeogenesis occurs actively in the liver during periods of exercise or fasting.

Group of answer choices

True

False

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Question 501 pts

Glucose can be synthesized from palmitic acid in mammals.

Group of answer choices

True

False

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Question 511 pts

Both glycogen synthesis and glycogen breakdown both involve glucose-1-P.

Group of answer choices

True

False

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Question 521 pts

Mammals have enzymes for the glyoxylate cycle in which acetate can be assimilated into 4-carbon intermediate in the TCA and thus enable the synthesis of glucose.

Group of answer choices

True

False

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Question 531 pts

Muscle lacks glucose-6-phosphatase and therefore glucose-6-phosphate cannot be dephosphorylated in muscle for export into the blood. Muscle stores glycogen for its use and muscle glycogen serve as a source of readily available fuel particular during the period of muscle exertion or physical exercise.

Group of answer choices

True

False

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Question 541 pts

Uncouple proteins can dissipate the proton gradient (or cause leakage of protons) in the inner membrane of mitochondria and thus decrease the membrane potential. As a result, more ATP molecules are synthesized and electron transport is stimulated.

Group of answer choices

True

False

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Question 551 pts

The fat depot in our body is more efficient in energy storage than glycogen because of its anhydrous property.

Group of answer choices

True

False

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Question 561 pts

Chylomicron is not a kind of lipoprotein.

Group of answer choices

True

False

Answer 1

471 ) True

Fructose 1,6 - bisphosphatase is inhibited by AMP . High level of AMP indicate that energy is low and need to ATP generation.

481) True

Ethanol metabolism leads to accumulation of NADH.

491) i and ii is true and iii is false.

501 ) True

Gluconeogenesis ( formation of glucose from non carbohydrates) is active during exercise and fasting . because at that time requirements of body increased.

511)True

Both glycogen synthesis and breakdown invovle Glucose -1- P.