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Questions and Answers

(1243 solutions)

Question

The Na⁺–K⁺ pump is a good example of which type of transport?

  • Simple diffusion

  • Facilitated diffusion

  • Secondary active transport

  • Osmosis

  • Primary active transport

Primary active transport ...

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Question

What is the general name for the network of structures within the cytoplasm which support the cell, determine its shape, and participate in movement?

  • Rough ER

  • Golgi apparatus

  • Cytoskeleton

  • Nucleus

Answer: Cytoskeleton....

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Question

What are three mechanisms of carrier-mediated transport?

  • Simple diffusion 

  • Facilitated diffusion 

  • Secondary active transport 

  • Endocytosis 

  • Primary active transport 

Facilitated diffusion, primary active transport, and secondary active transport....

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Question

Exocytosis moves a substance ______.

  • from one cell to another cell

  • into a cell

  • out of a cell

Answer: out of a cell....

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Question

A carrier that transports only one type of solute at a time is called a(n) ______.


Answer: Uniport. ...

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Question

The general term for the cell process in which the membrane invaginates, forming vesicles that bring extracellular particles or droplets of fluid into the cell, is known as ______.

Answer: Endocytosis....

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Question

Which carrier transports two or more solutes in opposite directions across a cell membrane?

  • Antiport

  • Uniport

  • Symport

Answer: Antiport....

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Question

Which of the following moves large particles and fluid droplets across the cell membrane?

  • Simple diffusion

  • Passive transport

  • Osmosis

  • Vesicular transport

Vesicular transport....

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Question

When all carriers are saturated, the transport of the molecule levels off at a rate called what?

  • Transport minimum

  • Transport threshold

  • Transport maximum

  • Transport capacity

Transport maximum...

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Question

Which of the following assures that the ECF concentration of sodium remains much higher than the ICF concentration?

  • Vesicular transport

  • Facilitated diffusion

  • Diffusion

  • Sodium-potassium pump

Sodium-potassium pump...

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