The rigid barrier that surrounds most prokaryotes is the

A. cell wall.
B. cytoplasm.
C. glycocalyx.
D. cell membrane.
E. flagellum.


A. cell wall.

Biology & Microbiology

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Each amino acid is specified by a set of ___________ base(s) in mRNA.

(a) one (b) two (c) three (d) four

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Determining the susceptibility of a microorganism to specific chemotherapeutic agents is an important service performed in the clinical microbiology laboratory.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Cardiac muscle's sole function is to

a. help move blood to supply itself with oxygen and nutrients. b. pump blood. c. control blood pressure. d. control heart rate. e. oxygenate the blood.

Biology & Microbiology

Transcription occurs in the nucleus or at the nucleoid.

Answer the following statement true (T) or false (F)

Biology & Microbiology