Within animal cells, glycolysis and gluconeogenesis must not occur at the same time. Therefore, regulation is important. Which of the following molecules is least important in the regulation of glycolysis and gluconeogenesis?
A) NADH
B) fructose-2,6-bisphosphate
C) ATP/ADP
D) acetyl CoA
E) phosphofructokinase-2
A) NADH
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The amount of heat energy needed to raise 1 gram of water from 14.5°C to 15.5°C is called a(n)
A. calorie. B. thermal unit. C. joule. D. erg.
Most octopuses die early in life; those that
survive can live up to 5 years. Octopuses are best characterized by a type __ survivorship curve.
a. I b. II c. III d. more than one of these e. none of these
The hierarchy of endocrine glands that control the release of sex steroid hormones is ____
a. hypothalamus, posterior pituitary, gonads b. hypothalamus, anterior pituitary, gonads c. anterior pituitary, hypothalamus, gonads d. posterior pituitary, hypothalamus, gonads e. anterior pituitary, posterior pituitary, gonads
On the landmass that became South America
a. monotremes were replaced by marsupials and early placental mammals starting about 65 million years ago. b. highly evolved placental mammals radiated south from North America about 5 million years ago. c. many early placental mammals became extinct in the Pliocene. d. early placental mammals arose between 130 and 85 million years ago. e. all of these occurred.