cell membrane & transport

cell membrane & transport

Assessment

Flashcard

Biology

9th - 10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the cell membrane?

Back

The cell membrane is a biological membrane that separates and protects the interior of all cells from the outside environment. It is composed of a phospholipid bilayer with embedded proteins.

2.

FLASHCARD QUESTION

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy. It relies on the concentration gradient.

3.

FLASHCARD QUESTION

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

4.

FLASHCARD QUESTION

Front

What is osmosis?

Back

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

5.

FLASHCARD QUESTION

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a membrane-bound vesicle.

6.

FLASHCARD QUESTION

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel materials in vesicles that fuse with the cell membrane, releasing their contents outside the cell.

7.

FLASHCARD QUESTION

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.

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