Cell Membrane

Front

Something is ___________ ____________ when some molecules can cross the membrane while others cannot.

Back

Selectively (or Semi) Permeable

Front

Which is true about active transport?

Back

It requires energy.

Front

The picture is an example of... (Active transport, Passive transport, Simple diffusion, Osmosis)

Back

Active transport.

Front

How does a cell maintain homeostasis?

Back

Regulates what enters and leaves the cell.

Front

Identify the part of the membrane identified as A. (carbohydrate, cholesterol, protein, phospholipid)

Back

phospholipid.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and leaves.

Front

Define 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 role do proteins play in the cell membrane?

Back

They assist in transporting substances across the membrane.

Front

What is the structure of a phospholipid?

Back

A hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.