Biochemistry___Lesson-7___Chapter 3.8 and 3.10

Question 1

Molecules that do not mix well with water.

Answer 1

Lipids

Question 2

A property of molecules that means water-fearing.

Answer 2

Hydrophobic

Question 3

Glycerol bonded to 3 fatty acids.

Answer 3

Fat or Triglyceride

Question 4

A molecule with 3 carbons, each bearing a hydroxyl group.

Answer 4

Glycerol

Question 5

A molecule with a carboxyl group and a hydrocarbon chain, usually16 or18 carbon atoms in length.

Answer 5

Fatty acid

Question 6

A fatty acid whose hydrocarbon chain contains one or more double bonds.

Answer 6

Unsaturated fatty acid

Question 7

A fatty acid that has the maximum possible hydrogens because it has no double bonds in its hydrocarbon chain.

Answer 7

Saturated fatty acid

Question 8

An unnatural form of fat associated with health risks.

Answer 8

Trans fat

Question 9

Consists of glycerol, attached to a phosphate group and 2 fatty acids. The major component of cell membranes.

Answer 9

Phospholipid

Question 10

The part of the phospholipid that interacts with water. Consists of everything except the hydrocarbon chains.

Answer 10

Hydrophilic head

Question 11

The part of the phospholipid that does NOT interact with water. Consists of just the hydrocarbon chains.

Answer 11

Hydrophobic tails

Question 12

Lipids in which the carbon skeleton contains four fused rings.

Answer 12

Steroid

Question 13

A type of steroid that is a common component of animal cell membranes.

Answer 13

Cholesterol