Unit 1C: Cells and Passive Transport

Front

What is the primary material that makes up the cell wall?

Back

Cellulose

Front

Do both prokaryotes and eukaryotes have a nucleus?

Back

False

Front

Why is diffusion important for a cell?

Back

It helps the cell to get the materials it needs to survive.

Front

What does the hydrophilic head of a phospholipid do?

Back

Loves water

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 the cell membrane?

Back

It regulates what enters and leaves the cell.

Front

What is passive transport?

Back

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

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus; eukaryotic cells do.

Front

What role do proteins play in the cell membrane?

Back

They assist in transport and communication across the membrane.