Cell Membrane INTRO Quiz 1

Fatty acid tails are

• hydrophobic.

• hydrophilic.

• hydro-licious.

Hydrophilic means

• water-fearing.

• water-loving.

• water-logged.

True or false? Hydrophobic molecules will mix well with the watery environment in and outside a cell.

• True

• False

True or false. Water can pass easily through the hydrophobic interior of the cell membrane.

• True

• False

HydroPHOBIC means

• water-fearing.

• water-loving.

• water-skiing.

Phosphate heads are

• hydrophilic.

• hydrophobic.

• claustrophobic.

In a lipid bilayer, fatty acid tails are

• in the middle where there is no water.

• facing the watery cytoplasm.

• facing the watery outside of the cell.

Phospholipids in the cell membrane are arranged in a

• bilayer.

• single layer.

• trilayer.

In a lipid bilayer, the hydrophilic phosphate heads face

• inside the bilayer.

• out towards BOTH the cytoplasm and the outside of the cell.

• ONLY towards the outside of the cell.

The inside and outside of cells are

• watery.

• oily.