Cell Transport

Front

A molecule that diffuses down a concentration gradient goes from an area of ______ concentration into an area of ______ concentration.

Back

high concentration to low concentration.

Front

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

Back

cell membrane.

Front

Active transport requires ______, moves materials from __________________, and goes _______ the concentration gradient.

Back

ATP, low to high, against.

Front

Water moves into root cells of a plant by...

Back

Osmosis.

Front

Two examples of passive transport are...

Back

Diffusion and Osmosis.

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy (ATP).

Front

What is a concentration gradient?

Back

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

Front

What role does the cell membrane play in transport?

Back

It regulates what enters and exits the cell, maintaining homeostasis.