Module 06 - Cell Membrane & Transport Review

All cells are surrounded by cell membranes.

• true

• false

A cell membrane is a plasma membrane.

• True

• False

What part of the cell regulates what can enter and leave the cell?  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

The cell membrane is mostly made of ___________________.

• carbohydrates

• proteins

• phospholipids

• nucleic acids

The cell membrane has _____________ layers of phospholipids.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS1-2

The molecule that makes up most of the membrane is a ______________.

• sphingolipid

• phospholipid

• triglyceride

• steroid

The ______________heads of the phospholipids touch the watery extracellular space and the watery cytoplasm inside the cell.

• hydrophilic

• hydrophobic

Hydrophobic means

• water-loving

• water-containing

• water-fearing

• when there is no water

A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 

• phospholipid 
• Carbohydrate
• Cholesterol 
• Protein 

Membranes are semi-permeable, which means they allow only certain things in or out of the cell.

• true

• false