Chief cells secrete:a

trypsin.
b. bile.
c. pepsin.
d. pepsinogen.
e. hydrochloric acid.


D

Biology & Microbiology

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Indicate whether the statement is true or false.

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The small region of an inactivated X chromosome that is not inactivated contains ____________________

homologous to those on the Y chromosome. Fill in the blank(s) with the appropriate word(s).

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Contamination of eating utensils from oral lesions spreads (bejel/pinta/yaws) among children in impoverished areas of the world

What will be an ideal response?

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What does the enzyme nitrogenase do?

A. It is a eukaryotic enzyme that removes amino groups from proteins that get converted into ammonia. B. It is a prokaryotic enzyme that converts nitrogen gas to ammonia. C. It is a bacterial enzyme that oxidizes nitrate to gaseous nitrogen. D. It is a eukaryotic enzyme that oxidizes ammonium to form nitrate.

Biology & Microbiology