Antigens _______.
A. are only found inside or on the surface of microbes
B. refers to any molecule found inside the body
C. are molecules that can be recognized by B- or T-cells
D. are universal molecules shared by many microbes
C. are molecules that can be recognized by B- or T-cells
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Mollicutes, such as Mycoplasma species, are able to colonize mucous membranes and can lead to pneumonia and respiratory tract disease.
Answer the following statement true (T) or false (F)
According to the fluid mosaic model of cell membranes, which of the following is true regarding
membrane phospholipids?
a. They are anchored in place by intermediate filaments. b. They can move laterally along the plane of the membrane. c. They have hydrophilic tails in the interior of the membrane. d. They occur in an uninterrupted bilayer, with membrane proteins bound only to the surface of the membrane. e. They are free to leave the membrane and dissolve in the interstitial fluid.
Assuming the pH of the matrix was significantly lower than the inner mitochondrial space, how would
the ATP synthase function differently?
a. It would require an ion to stabilize it. b. ATP synthase would no longer function properly. c. It would hydrolyze ATP to form ADP. d. It would function exactly the same. e. The electron transport chain would be uncoupled.
If the results of a chi-square test of a given set of data show a P value greater than 0.05, then the null hypothesis
A) must be rejected. B) must be accepted. C) must be rephrased. D) cannot be rejected. E) cannot be accepted.