How many protons are translocated across the inner mitochondrial membrane by complex III for each pair of electrons passing through the electron transport chain?
A) 0
B) 1
C) 2
D) 4
D) 4
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What would be the consequence if an individual was homozygous for an IBP that could not bind iron but could bind to the IRE?
A. Unregulated transferrin receptor levels B. Increased degradation of ferritin C. Possible iron toxicity to the cells at levels of iron that would not normally be toxic to a cell D. There would be no predicted consequence to iron metabolism in the cell
In a certain plant, when individuals with blue flowers are crossed with individuals with blue flowers,
only blue flowers are produced. Plants with red flowers crossed with plants with red flowers sometimes produce only red flowers, although other times they produce either red or blue flowers. When plants with red flowers are crossed with plants with blue flowers, sometimes only red flowers are produced; other times either red or blue flowers are produced. Which gene is dominant? What will be an ideal response?
The ozone layer is known to thin above what
region(s)? a. Antarctica b. the equator c. 60 degrees north and south latitudes d. 30 degrees north and south latitudes e. all of these
What would be an expected feature of a plasma membrane that had no integral membrane proteins?
A. the membrane would have no fluidity B. the membrane would not associate with peripheral membrane proteins C. the membrane would have no cholesterol D. the membrane would be unable to transport sodium ions E. the membrane would collapse