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Indicate Whether the Statements Below Are TRUE or FALSE

Question 5

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

Premises:

Responses:

Transporters undergo transitions between different conformations, depending on whether the substrate-binding pocket is empty or occupied.

False

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.

True

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.

Premises:

Transporters undergo transitions between different conformations, depending on whether the substrate-binding pocket is empty or occupied.

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:

Premises:

Responses:

Transporters undergo transitions between different conformations, depending on whether the substrate-binding pocket is empty or occupied.

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.