A person with a glucagon deficiency would most likely have difficulty
a. producing enough urine to remove waste products.
b. synthesizing glycogen in the liver.
c. allowing circulating glucose to enter cells.
d. producing insulin after a meal.
e. keeping up blood sugar between meals.
E; Glucagon functions to allow the breakdown of glycogen in the liver to glucose and the release of the glucose into the bloodstream. This happens between meals, allowing glucose stored previously to be mobilized to keep the blood glucose levels steady. Insulin promotes glycogen synthesis (choice b) and entry of glucose into cells (choice c). Insulin deficiency results in a large volume of urine production, but low blood sugar, by itself, will not interfere with urine production by the kidneys (choice a). Insulin and glucagon release is controlled by glucose levels, and they do not act directly on each other's production (choice d).
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Answer the following statement true (T) or false (F)
Which is true about the energy of activation?
A. In any one metabolic pathway, all steps will have the same energy of activation. B. Adding the correct enzyme can lower the energy of activation. C. Energy of activation is the difference between the energy of the reactant and the energy of the product. D. Energy of activation is measured as the energy that is released after a reaction occurs. E. The energy of activation is always lower than the energy of the reactant.
The stage of prophase I in which mammalian oogenesis can arrest for years is
A) leptotene. B) zygotene. C) pachytene. D) diplotene. E) diakinesis.
The experimental protocol in which an animal chews and swallows food, after which the food immediately exits its body through a tube implanted in its esophagus
What will be an ideal response?