HIV attaches to T cell and macrophages by means of an interaction between gp120 and a(n) (antibody/CD4/gp41 ) receptor
What will be an ideal response?
CD4
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Virulent pathogens are
A. more likely to cause disease. B. more likely to cause severe disease. C. unable to cause disease. D. more likely to be opportunists.
If the inner membrane of the mitochondria were compromised in some way, what effect would this have on cellular
respiration?
a. The transport of electrons across the inner mitochondrial membrane would not occur. b. The proton gradient across the inner mitochondrial membrane would dissipate.
c. The ATP synthase enzyme would relocate to the mitochondrial matrix. d. The cell would generate more ATP. e. ATP would no longer be made anywhere in the cell by any mechanism.
Behavioral responses that animals may or may not use are called facultative
Indicate whether the statement is true or false.
Birds and reptiles save water by eliminating
__________ rich wastes as uric acid crystals. Fill in the blank(s) with the appropriate word(s).