Cell Membrane [Bozeman]

Why does soap dissolve the cell membrane and the nuclear membrane?

• Because they are made of lipids

• Because they contain DNA

• Because they are made of proteins

• Because they are made of carbohydrates

Identify the 2 most important types of molecules that make up the cell membrane.

• Cholesterol

• Glycoproteins

• Proteins

• Phospholipids

• Glycolipids

Which membrane element (molecule) allows large molecules to pass through?

• phospholipids

• proteins

• glycolipids

• glycoproteins

The "fluid" part of the fluid mosaic model means that....

• this structure is solid

• everything is floating/moving

• nothing is moving

• the membrane is highly complex

What are the functions of cholesterol in the cell membrane?   Check all that apply.  

• keeps the phospholipids from getting too far apart in warmth

• keeps the phospholipids from getting too close together in cold.

• Helps to move molecules into and out of the cell

• Act as antibodies in immune defense

Glycolipids are important in cell ____________.

• transport

• antibodies

• signalling

A phospholipid is made up of mostly 

• Phosphate

• Hydrocarbons/fatty acid tails

• Glycerol

What kind of molecules can move easily through the membrane? (Hint: more than one answer)

• charged molecules

• large molecules

• small molecules

• molecules with no charge

Proteins in the membrane help move ____________ molecules across.

• Small/no charge

• Large/charged

What specific type of protein helps to move water across the cell membrane?  

• Transport protein

• Channel protein

• Glycoprotein

• Aquaporin