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Questions and Answers
Which type of active transport requires energy to move molecules against their concentration gradient?
Which type of active transport requires energy to move molecules against their concentration gradient?
- Facilitated diffusion
- Endocytosis
- Primary active transport (correct)
- Exocytosis
What is the function of a symporter in active transport?
What is the function of a symporter in active transport?
- To move one type of molecule out of the cell
- To move two different types of molecules in opposite directions (correct)
- To move one type of molecule in one direction
- To move two different types of molecules in the same direction
In active transport, what is the role of the sodium-potassium pump?
In active transport, what is the role of the sodium-potassium pump?
- To move sodium ions into the cell and potassium ions out of the cell
- To prevent the movement of sodium and potassium ions
- To move sodium ions out of the cell and potassium ions into the cell (correct)
- To maintain an equal concentration of sodium and potassium inside and outside the cell
What is the primary function of active transport?
What is the primary function of active transport?
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Which structure is responsible for maintaining the electrochemical gradient in active transport?
Which structure is responsible for maintaining the electrochemical gradient in active transport?
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What is the significance of active transport in cellular processes?
What is the significance of active transport in cellular processes?
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