Cell Membrane and Cell Transport Flashcard

Cell Membrane and Cell Transport Flashcard

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration until equilibrium is reached.

2.

FLASHCARD QUESTION

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

3.

FLASHCARD QUESTION

Front

What is the main function of the cell membrane?

Back

The main function of the cell membrane is to control the movement of substances in and out of the cell.

4.

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.

5.

FLASHCARD QUESTION

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (ATP) to occur.

6.

FLASHCARD QUESTION

Front

What is the difference between diffusion and osmosis?

Back

Diffusion refers to the movement of any molecules, while osmosis specifically refers to the movement of water molecules.

7.

FLASHCARD QUESTION

Front

What does it mean for a solution to be isotonic?

Back

An isotonic solution has the same concentration of solutes as another solution, resulting in no net movement of water.

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