Cells Review

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy (ATP).

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins, without the use of energy.

Front

What is osmosis?

Back

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

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to move out of the cell, leading to cell shrinkage.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell, leading to cell swelling or bursting.

Front

What is an isotonic solution?

Back

An isotonic solution has an equal concentration of solutes compared to the inside of the cell, resulting in no net movement of water into or out of the cell.

Front

What type of cell is a plant cell?

Back

A plant cell is characterized by a rigid cell wall, chloroplasts for photosynthesis, and a large central vacuole.

Front

What type of cell is an animal cell?

Back

An animal cell lacks a cell wall and chloroplasts, and it typically has smaller vacuoles compared to plant cells.

Front

What is the role of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, providing protection and structural support.

Front

What is diffusion?

Back

Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is reached.