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Indicate Whether the Statements Below Are TRUE or FALSE

Question 42

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Indicate whether the statements below are TRUE or FALSE.If a statement is false, explain why it is false.

Premises:
Transporters undergo transitions between different conformations, depending on whether the substrate-binding pocket is empty or occupied.
Facilitated diffusion can be described as the favorable movement of one solute down its concentration gradient being coupled with the unfavorable movement of a second solute up its concentration gradient.
The net negative charge on the cytosolic side of the membrane enhances the rate of glucose import into the cell by a uniporter.
The electrochemical gradient for K+ across the plasma membrane is small.Therefore, any movement of K+ from the inside to the outside of the cell is driven solely by its concentration gradient.
Responses:
False
True

Correct Answer:

Transporters undergo transitions between different conformations, depending on whether the substrate-binding pocket is empty or occupied.
Facilitated diffusion can be described as the favorable movement of one solute down its concentration gradient being coupled with the unfavorable movement of a second solute up its concentration gradient.
The net negative charge on the cytosolic side of the membrane enhances the rate of glucose import into the cell by a uniporter.
The electrochemical gradient for K+ across the plasma membrane is small.Therefore, any movement of K+ from the inside to the outside of the cell is driven solely by its concentration gradient.
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