The cytoplasmic membrane of bacteria
A. acts as a selectively permeable barrier, allowing some molecules to pass while preventing the movement of others.
B. is the major site of ATP synthesis in aerobes.
C. retains the cytoplasm and its contents.
D. All of the choices are correct.
Answer: D
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A drug called ouabain specifically inhibits the sodium-potassium pump present in neuron cells. Over time, what would this action of ouabain cause?
A) the inside of the neuron to become more negative B) repolarization C) elimination of a concentration gradient D) more potassium to be transported into the neuron
Carbon is fixed in which part of the accompanying diagram?
a. A
b. G
c. 4
d. 2
e. 1
If both children are of blood group MM, which of the following is possible?
A) Each parent is either M or MN. B) Each parent must be type M. C) Both children are heterozygous for this gene. D) Neither parent can have the N allele. E) The MN blood group is recessive to the ABO blood group.
A limitation of this hypothesis is that it applies only to _____ reproducing organisms.
What will be an ideal response?