The carbon source for a heterotroph is
a. breathing carbon dioxide from the air.
b. water.
c. sunlight.
d. ingesting organic matter.
e. various inorganic molecules found in all ecosystems.
D; Heterotrophs are "other feeders," therefore they get their carbon from organic matter, in contrast to autotrophs who use carbon dioxide as their carbon source.
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The term used when oxidative phosphorylation uses oxygen as the terminal electron acceptor is:
a. substrate-level phosphorylation. b. fermentative metabolism. c. anaerobic respiration. d. aerobic respiration.
A biochemical synthesized in small quantities in one part of an organism and transported to another, where a target cell is affected is a(n)
A. spore. B. scion. C. enzyme. D. callus. E. hormone.
______ is/are released from synaptic vesicles into the synaptic cleft.
a) salts b) chloride ions c) neurotransmitters d) cocaine
Which of the following statements regarding ELISAs is TRUE?
A) They are not quantitative. B) They require large amounts of serum. C) The antibody label is a fluorescent molecule. D) They can be used to detect antibody or antigen. E) They involve the use of membrane filters.