29. In an average individual the liver glycogen is depleted during starvation in

Question

29. In an average individual the liver glycogen is depleted during starvation in approximately A) 45-60 minutes. B) 4-6 hours C) 18-24 hours. D) 55-60 hours. E) S-7 days 30. Excess glucosylation of lens proteins in diabetics leads to A) cataracts. B) retinal degeneration C) glaucoma D) ketosis. E) fatty liver disease. 31. Based on the information given in the chapter complete the following statement about the graph shown below: The curve labeled corresponds to activity of glucokinase under conditions with no inhibition. The binding of to the regulating protein would result in kinetic behavior represented by curve 1.0 0.8 0.6 Vmax o.A 0.2 0.0 10 Glucose] (mM) A) B F6P: A B) A; glucose; B E) B; glucose; C 32. The majority of glucose in the brain A) is used to store adequate glycogen for extended periods of starvation. B) is used to produce ATP for membrane Na -K ATPase required for nerve impulse c) transmission. is synthesized from fatty acids due to the need for high ATP levels. is synthesized in the adipose tissue and transported to the brain. E) D) is synthesized from ketone bodies under conditions of prolonged fasting.

Explanation / Answer

29. In an average individual the liver glycogen is depleted during starvation is approximately 18-24 hours.

30. Excess glucosylation of lens protein in diabetes leads to cataract.

31. Answer is option B- A, glucose, B

32. The majority of glucose in the brain is used to produce ATP for membrane Na+-K+. ATPase required for nerve impulse transmission.

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