CFA Cells and Cell Transport Study Guide

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration without the use of energy.

Tags

NGSS.MS-LS2-3

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles that fuse with the cell membrane.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell takes in materials by engulfing them in a vesicle.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus or organelles, while eukaryotic cells do.

Front

What does selectively-permeable mean?

Back

Selectively-permeable means that the cell controls what passes in and out of it.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy.

Tags

NGSS.HS-LS2-3

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively-permeable membrane.

Front

What are organelles?

Back

Organelles are specialized structures within a cell that perform specific functions.

Tags

NGSS.MS-LS1-2

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell.

Front

What is a vesicle?

Back

A vesicle is a small membrane-bound sac that transports materials within a cell.