Unit 1C: Cells and Passive Transport

Front

What substances can easily pass through the pores of the cell wall?

Back

Water, oxygen, and carbon dioxide

Front

What is the function of carbohydrates in the cell membrane?

Back

They link cells together and act as recognition tags.

Front

What prevents animal cells from bursting in a hypotonic solution?

Back

Contractile vacuoles

Front

What is osmosis?

Back

Diffusion of water through a selectively permeable membrane.

Front

Where is the cell wall located in relation to the cell membrane?

Back

Outside the cell membrane.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and control what enters and exits.

Front

Define passive transport.

Back

The movement of substances across a cell membrane without the use of energy.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What role do proteins play in the cell membrane?

Back

They assist in transporting substances across the membrane.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain substances to pass while blocking others.