The molecule that an enzyme acts upon is known as its

A. substrate.
B. coenzyme.
C. apoenzyme.
D. product.
E. catalyst.


Answer: A

Biology & Microbiology

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Inactivated immunizing agents are prepared by treatment with

A. alcohol. B. phenol. C. formalin. D. histamine.

Biology & Microbiology

Population growth of rabbits in Australia can best be described as ____

a. fast b. exponential c. virulent d. stable e. epidemic

Biology & Microbiology

Which of the followings substance is NOT

secreted by an exocrine gland?

a. mucus b. hormones c. tears d. earwax e. digestive enzymes

Biology & Microbiology

The exact path that led to the evolution of modern cells and the organic molecules contained in these cells to support life is not known

The best guess is that some sort of self-replicating organic molecule formed along mudflats and most likely resembled A) single-stranded DNA. B) single-stranded RNA. C) small amino acids such as lysine and glycine. D) double-stranded DNA. E) ATP.

Biology & Microbiology