Review: Membrane Transport and Homeostasis

Which part of the plasma membrane is hydrophobic?

• Phospholipid Tails

• Phospholipid Heads

• The entire phospholipid

• The entire membrane is hydrophilic

Which part of the plasma membrane is hydrophilic?

• Phospholipid bilayer

• Proteins

• Cholesterol

• Phospholipid heads

What does the phospholipid bilayer create a barrier around?

• Vacuole

• Plasma desomata

• Cytoplasm

• Cell wall

Tags

NGSS.MS-LS1-2

What is the role of the plasma mebrane?

• Regulate what enters the cell

• Regulate what exits the cell

• Regulates movement of water molecules

• Regulates the movement in and out of the cell

Tags

NGSS.MS-LS1-2

Which is NOT a part of the plasma membrane?

• Phospholipids

• Cholesterol

• Proteins

• Viruses

Tags

NGSS.MS-LS1-2

What does "hydrophilic" mean?

• Water FEARING

• Water LOVING

• Water ATTRACTING

• Water JUMPING

What does hydrophobic mean?

• Water LOVING

• Water JUMPING

• Water FEARING

• Water ATTRACTING

What is the role of cholesterol in the membrane?

• Regulates movement of proteins across the membrane

• Regulates what enters and exits the cell

• Provides homeostasis

• Maintains fluidity in the membrane

What is the plasma membrane mostly composed of?

• Proteins

• Carrier and Channel Proteins

• Phospholipids

• Cholesterol

What is homeostasis?

• Every living cell existing in a liquid environment

• A state of balance maintained by the plasma membrane

• A state of panic that you are in after too much salt leaves your cells

• Regulated movement of sugar across a membrane

Tags

NGSS.MS-LS1-3