Ch 2 L3 Cell Transport

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell takes in a substance by surrounding it with its cell membrane.

Front

What is active transport?

Back

Active transport is the movement of substances from an area of low concentration to an area of high concentration, requiring energy.

Tags

NGSS.HS-LS2-3

Front

What is osmosis?

Back

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

Front

Why can water molecules pass through the cell membrane?

Back

Water molecules can pass through the cell membrane because they are small in size.

Front

What happens to a cell's surface area as it gets bigger?

Back

As a cell gets bigger, its surface area increases.

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.

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy and moves substances from high to low concentration, while active transport requires energy to move substances from low to high concentration.

Front

What role do cell membranes play in transport?

Back

Cell membranes control the movement of substances in and out of the cell, allowing for selective permeability.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane is a barrier that allows certain substances to pass while blocking others.

Tags

NGSS.HS-LS2-3

Front

What is the significance of concentration gradients in cell transport?

Back

Concentration gradients drive the movement of substances during diffusion and osmosis, influencing how materials enter and exit cells.