Osmosis and Diffusion

Osmosis and Diffusion

Assessment

Flashcard

Biology

6th - 8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration.

2.

FLASHCARD QUESTION

Front

What is osmosis?

Back

Osmosis is the movement 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 role of the cell membrane?

Back

The cell membrane regulates what enters and leaves a cell, maintaining homeostasis.

4.

FLASHCARD QUESTION

Front

Define selective permeability.

Back

Selective permeability is the ability of the cell membrane to allow some substances to pass through while preventing others.

5.

FLASHCARD QUESTION

Front

What factors affect the rate of diffusion?

Back

Factors that affect the rate of diffusion include concentration gradient, temperature, surface area, and the nature of the molecules.

6.

FLASHCARD QUESTION

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space.

7.

FLASHCARD QUESTION

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a process that allows substances to cross membranes with the assistance of special proteins.

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