Quiz 9: Chapters 19 and 20

Question 1

Cross-linking of proteins in embalming involves:

Answer 1

The removal of water

Question 2

The primary structure of a protein:

Answer 2

Is the sequence of the amino acids

Question 3

The study of all enzymatically controlled reactions in a living cell is the definition for:

Answer 3

Metabolism

Question 4

hemoglobin seeping into the tissues after death is the cause of:

Answer 4

Postmortem stain

Question 5

All proteins have a quaternary structure. (T/F)

Answer 5

False

Question 6

The building blocks of proteins are:

Answer 6

Amino acids

Question 7

Putrefaction involves:

Answer 7

• Deamination
• Decarboxylation
• Hydrolysis

Question 8

Formaldehyde reacts with proteins by:

Answer 8

• Cross-linking peptide linkages
• Cross-linking imide groups
• Cross-linking the amino groups

Question 9

A compound that protects a solution against changes in pH is a:

Answer 9

Buffer

Question 10

A compound that can act as both an acid and a base is said to be:

Answer 10

Amphoteric

Question 11

A zwitterion contains a positive and negative charge. (T/F)

Answer 11

True

Question 12

An alpha helix is a type of _____ structure

Answer 12

Secondary

Question 13

The major negative ion in the body

Answer 13

Chlorine

Question 14

Lipids are not considered macromolecules because they don’t contain amino acids. (T/F)

Answer 14

False

Question 15

The formation of sulfur and phosphorus bonds is a means of carrying

Answer 15

Energy

Question 16

Folding of proteins to protect hydrophobic side chains from water is an example of _____ structure

Answer 16

Tertiary

Question 17

How many polypeptide chains does a molecule of hemoglobin have

Answer 17

4