Lecture 4

Question 1

Atherosclerosis

Answer 1

Plaque build up on the arterial walls

Question 2

What percentage of cells do not require oxygen for cellular energy?

Answer 2

5% do not require oxygen

Question 3

Lipolysis

Answer 3

Catabolism of lipids

Question 4

Lipogenesis

Answer 4

Synthesis of lipids

Question 5

Protein

Answer 5

Most abundant and important organic material in the body.

Basic building is 20 amino acids.

Question 6

What are the basic elements that make up proteins?

Answer 6

Carbon (C)
Hydrogen (H)
Oxygen (O)
Nitrogen (N)

Question 7

What are the seven major functions of proteins?

Answer 7

Support - structural proteins
Movement - contractile proteins (muscle)
Transport - transport proteins (through cells)
Buffering - regulation of pH
Metabolic regulation - enzymes
Coordination and control - hormones
Defense - antibodies

Question 8

Peptide Bond

Answer 8

The bond that is formed between amino acids.

Question 9

How is protein formed?

Answer 9

Through dehydration synthesis of amino acids. (1k-20k amino acids)

Question 10

Structure of an amino acid

Answer 10

Amino group bonded to another through the carbocyllic group (COOH).

Question 11

Dipeptide

Answer 11

2 amino acids bound together

Question 12

Tripeptide

Answer 12

3 amino acids bound together

Question 13

Polypeptide

Answer 13

4-99 amino acids bound together

Question 14

How many amino acid bonds to form a protein?

Answer 14

100 or more.

Question 15

Protein shapes

Answer 15

Straight, coiled, pleated, convulted

Question 16

Enzymes (catalyst)

Answer 16

Needed to cause, accelerate or decelerate a chemical reaction and are not changed or used in the reaction.

Question 17

Isozymes

Answer 17

2 enzymes that catalyze the same reaction