Plasma Membrane Vocab (9/26 Quiz)

Question 1

Having both a hydrophilic region and a hydrophobic region

Answer 1

amphipathic

Question 2

A steroid that forms an essential component of animal cell membranes

Answer 2

cholesterol

Question 3

A model of cell membranes in which the phospholipid bilayer is covered in a layer of protein

Answer 3

Davson-Danielli model

Question 4

A model of cell membranes in which proteins are embedded in a phospholipid bilayer

Answer 4

Fluid mozaic model (Singer-Nicholson)

Question 5

A protein with one or more carbohydrates attached

Answer 5

Glycoprotein

Question 6

“Water-loving”; polar molecules (or parts of molecules) that are soluble in water

Answer 6

Hydrophilic

Question 7

“Water-fearing”; non-polar molecules (or parts of molecules) that do not dissolve in water

Answer 7

Hydrophobic

Question 8

The ability of a membrane to let things out

Answer 8

Permeability

Question 9

A lipid with a phosphate group in its hydrophilic head. the main constituent of cell membranes

Answer 9

Phospholipid

Question 10

A double layer of phospholipids that makes up cell membranes

Answer 10

Phospholipid bilayer