Week 10 & 11 Quiz

Which property describes the cell membrane?

• solid at room temperature

• semipermeable

• nonpermeable

• hydrophobic

Which type of biological macromolecule is the main component of the plasma membrane?

• carbohydrate

• lipid

• protein

• nucleic acid

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids

True or false:  Regulating what enters and leaves the cell helps the cell maintain homeostasis. 

• True
• False

Tags

NGSS.HS-LS1-3

Osmosis is the movement of _____ across a membrane.

• food

• energy

• oxygen

• water

Which is true about active transport?

• It requires energy
• it does not require energy
• It moves substances down the concentration gradient
• it moves material from high to low concentration

Movement of molecules from LOW to HIGH concentration

• Passive Transport

• Active Transport

What type of transport uses ATP (energy)

• Passive Transport

• Active Transport

What are the building blocks of proteins?

• amino acid
• fatty acid
• nucleotide
• lipid

Tags

NGSS.HS-LS1-6

The element _______is found in all of the organic compounds.

• Iron

• Nitrogen

• Carbon

• Oxygen