Cell Membrane

Cell Membrane and Transport Review

Match

Match the macromolecule to the part of the plasma membrane

• proteins

• Lipids

• carbohydrates

transport proteins

two layers of phospholipids

carbohydrate chains

• transport proteins

• two layers of phospholipids

• carbohydrate chains

Multiple Choice

Why is the cell membrane called a fluid mosaic model?

• it stores energy

• it is made of two layers of phospholipids, making the membrane fluid with proteins embedded.

• It falls apart easily and is only made of carbohydrates

• it is only made of proteins

Multiple Choice

What is the cell membrane's job?

• it holds DNA

• it keeps everything out

• to regulate what enters the cell and what leaves the cell. It is selectively permeable.

• It allows everything in.

Match

Match the part of the cell membrane to its function.

• carbohydrate chain

• phospholipid bilayer

• transport proteins

• cholesterol

helps stabilize and identify cells

makes up the cell membrane

transport molecules across the membrane

stabilize the cell membrane

• helps stabilize and identify cells

• makes up the cell membrane

• transport molecules across the membrane

• stabilize the cell membrane

Fill in the Blank

Passive transport moves molecules from ____ __ ___ concentrations.

Multiple Choice

Osmosis is the movement of _____ from high to low concentrations.

• glucose

• salt

• oxygen

• water

Fill in the Blank

Passive transport ____ ___ require energy.

Match

Match the following

• Does Active Transport use energy (ATP)?

• Does Passive Transport Use Energy(ATP)?

• passive transport moves molecules from ...

• active transport moves molecules from ...

Yes

No

high to low

low to high

• Yes

• No

• high to low

• low to high

Multiple Choice

Which is not an example of active transport?

• heart beat

• running

• osmosis

• moving molecules from low to high