Cell Membrane and Transport

Cell Membrane and Transport

Assessment

Flashcard

Science, Biology

10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and support.

2.

FLASHCARD QUESTION

Front

Define facilitated diffusion.

Back

Facilitated diffusion is a type of passive transport that uses channel or carrier proteins to help move substances across the cell membrane without energy.

3.

FLASHCARD QUESTION

Front

What are channel proteins?

Back

Channel proteins are integral membrane proteins that form pores in the cell membrane, allowing specific molecules to pass through.

4.

FLASHCARD QUESTION

Front

What does hypotonic mean in relation to cell solutions?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to enter the cell and potentially leading to swelling.

5.

FLASHCARD QUESTION

Front

What is the difference between hydrophobic and hydrophilic substances?

Back

Hydrophobic substances repel water and do not mix with it, while hydrophilic substances are attracted to water and can dissolve in it.

6.

FLASHCARD QUESTION

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, relying on concentration gradients.

7.

FLASHCARD QUESTION

Front

Explain the role of carrier proteins in facilitated diffusion.

Back

Carrier proteins bind to specific molecules and change shape to transport them across the cell membrane.

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