Cells and Transport (summer School)

Front

What does DNA contain?

Back

DNA contains all the instructions for a cell's activities.

Front

What are organelles?

Back

Tiny cell structures that carry out specific functions within the cell.

Front

What is active transport?

Back

Active transport is the movement of materials across a cell membrane from low to high concentration.

Front

Does passive transport use energy?

Back

No, passive transport does not use energy.

Front

What is the function of the cell membrane?

Back

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

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy.

Front

What are the two main types of transport across cell membranes?

Back

Active transport and passive transport.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

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

Front

What role do proteins play in the cell membrane?

Back

Proteins help transport substances across the cell membrane and can act as receptors.