The main DISADVANTAGE of excessive gluconeogenesis during prolonged postabsorptive periods is that
A. continued protein breakdown can impair enzymatic activity and plasma membrane functions.
B. carbohydrate buildup in the liver impairs its function.
C. the brain is exposed to levels of glucose that are too high.
D. tissues other than the brain increase glucose utilization.
E. glucose absorption from the gut is impaired.
C. the brain is exposed to levels of glucose that are too high.
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What is the result of a mutation that occurs in somatic cells?
A. The mutation will be passed along to the organism's offspring. B. The mutation may be expressed in the individual, but will not be passed along to its offspring. C. The mutation will be deleterious. D. There will never be any visible effect. E. The mutation will prevent all reproduction.
The main source of light in the deep sea is:
a. the sun. b. bioluminescence. c. underwater volcanoes. d. dinoflagellates. e. anglerfish.
Which of the following is responsible binds to thyroid hormone receptor and is an active thyroid hormone ?
a) MIT b) DIT c) T3 d) rT3 e) T4
What is the name of the specific region where replication of a bacterial chromosome begins?
a. the replication fork b. the ori c. the ter d. the beg