Which of the following statements about the Na⁺-K⁺ pump is incorrect?
A) Phosphorylation of the pump must occur before K+ can attach to its binding site.
B) It has ATP synthase activity.
C) It helps decrease Na+ and K+ concentration gradients across the plasma membrane.
D) It regulates cell volume by controlling the concentration of solutes inside the cell.
E) Its action is important for secondary active transport.
Correct Answer:
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Q44: Glucose enters some cells
A)through primary active transport
B)through
Q45: According to Fick's law of diffusion, which
Q46: Osmosis is a type of
A)carrier-mediated transport
B)diffusion
C)exocytosis
D)pinocytosis
E)primary active
Q47: Cell X has a resting potential of
Q48: During the resting potential
A)K+ ions leave the
Q50: Anionic intracellular proteins (A⁻) cannot pass through
Q51: A Ca²⁺ pump in the plasma membrane
A)pumps
Q52: What is primarily responsible for the development
Q53: With secondary active transport, the movement of
A)H+
Q54: If a human cell is placed into
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