What is the energy generated in the first
electron transfer chain in the light-dependent
reactions of photosynthesis used to do?
a. split water into oxygen, hydrogen ions, and
electrons
b. generate NADPH
c. power the ATP synthase enzyme to produce
ATP
d. pump hydrogen ions into the thylakoid
compartment
e. generate glucose
D
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Acromegaly is the result of excessive secretion of which of the following by adults?
a. mineralocorticoid b. glucocorticoid c. thyroxine d. testosterone e. growth hormone
Which of the following statements is true?
a. Although hormones are carried to all parts of the body, they produce effects only in cells with proper receptors. b. Hormones are limited to steroid compounds. c. Hormones are secreted by specialized exocrine glands. d. Most hormones are controlled by positive feedback mechanisms involving the pituitary gland. e. Target cell response to the secretion of a hormone is as rapid as an effector response in the nervous system.
The chemical reactions of photosynthesis occur in which cellular organelle?
A) Chloroplasts B) Nucleus C) Mitochondria D) Ribosomes
What is the inner portion of the adrenal gland that secretes epinephrine and norepinephrine?
A. Adrenal medulla B. Hypothalamus C. Adrenal cortex D. Anterior pituitary E. Cerebrum