The cytoplasmic (plasma) membrane of bacteria:

a) retains the cytoplasm and its contents
b) acts as a selectively permeable barrier, allowing some molecules to pass while preventing the movement of others
c) is the major site of ATP synthesis (respiration) in aerobes
d) all of the above


Ans: d) all of the above

Biology & Microbiology

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After DNA synthesis (i.e., S-phase) an identical copy of the DNA has been made and this is present in the two chromatids when viewed as the chromosome.

a. true b. false

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