The presence of hydrochloric acid in the stomach serves all of the following purposes EXCEPT

a. activates pepsinogen.
b. emulsifies fats.
c. inactivates amylase.
d. kills bacteria.
e. unfolds proteins.


B

Biology & Microbiology

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An example of an organism's genotypic characteristic is its:

a. macroscopic morphologic structure. b. microscopic morphologic structure. c. nucleic acid composition. d. antigenic properties.

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The appendix is a vestigial structure that extends off of the ____

a. cecum b. colon c. duodenum d. rectum e. stomach

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Which of the following is not a major function of proteins in the cell membrane?

a. acting as receptors b. anchoring cells to other structures c. forming the entire glycocalyx d. forming channels

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