The nucleotide-containing molecule commonly used to carry electrons in the cell is
A. NAD+.
B. pyruvic acid.
C. ATP.
D. ADP.
Answer: A
Biology & Microbiology
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In animal cells, the extracellular matrix plays important roles in all of the following processes except
A) cell division. B) motility. C) DNA replication. D) differentiation. E) adhesion.
Biology & Microbiology
Amoebas move from place to place by means of their
A. pseudomonads. B. plasmodia. C. cysts. D. sporocarps. E. pseudopods.
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Which of the following is a shell-less mollusk?
A. a nudibranch B. a scallop C. a pulmonate gastropod D. a chiton E. a squid
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A properly functioning immune system is responsible for
A. destruction of foreign material. B. recognition of foreign material. C. surveillance of the body. D. All of the choices are correct.
Biology & Microbiology