Section 2 Quizzes

Question 1

Which is an example of a fibrous protein?
A. ribonuclease
B. hemoglobin
C. collagen
D. typsin

Answer 1

C. collagen

Question 2

(T/F) Conjugated proteins can use metals to perform chemical reactions.

Answer 2

true

Question 3

There are four parts to each amino acid: (1) a carbon bonded to a hydrogen atom, (2) functional group (R), (3)_______________________ and

(4)_________________________

Answer 3

3. amino group
4. carboxyl group

Question 4

What are the three main classes of amino acids?

Answer 4

neutral, acidic, basic

Question 5

Which amino acid is polar?
A. glycine
B. lysine
C. valine
D. alanine

Answer 5

B. lysine

Question 6

How many essential amino acids are there?

Answer 6

9

Question 7

(T/F) Tertiary structure is driven by interactions between backbone carbonyl groups and amide hydrogens.

Answer 7

false

Question 8

Draw a dipeptide between alanine to glycine (1 pt)

Label each amino acid with one letter abbreviation (2 pts) and circle the peptide bond (1 pt).

Answer 8

check week 6 quiz for answer

Question 9

The __________________________ structure of a protein is the sequence of amino acids in the protein.

Answer 9

primary

Question 10

The _______________________ structure of a protein is its folded or functional form of the protein.

Answer 10

tertiary

Question 11

Which vitamin is fat soluble ?
A. K
B. Folic Acid
C. Antioxidant
D. B12

Answer 11

A. K

Question 12

If an egg white protein ovalbumin is denatured into a hard boiled egg then which of the following is least affected?
A. the tertiary structure of ovalbumin
B. the quaternary structure of ovalbumin
C. the secondary structure of ovalbumin
D. the primary structure of ovalbumin

Answer 12

D. the primary structure of ovalbumin

Question 13

Regulation of an enzyme’s activity by the product of the reaction is known as?

Answer 13

feedback control

Question 14

Which of the following can impact an enzyme’s functioning/activity?
A. pH and temp
B. pH
C. temperature
D. none of the above

Answer 14

A. pH and temp

Question 15

All are true for enzymes except:
A. Enzymes speed up the rate of a reaction
B. Enzymes may change physically during the reaction
C. Enzymes are biological catalysts
D. Enzymes are made of DNA

Answer 15

D. Enzymes are made of DNA

Question 16

The type of interaction most likely to occur between an aspartic acid residue and lysine is:

Answer 16

hydrogen bond

Question 17

Which of these is an enzyme?
A. dextrose
B. NADH
C. catalase
D. pyruvate

Answer 17

C. catalase

Question 18

definition of aldose

Answer 18

a monosaccharide with an aldehyde group

Question 19

definition of carbohydrate

Answer 19

member of a large class of polyhydroxy aldehydes and ketones

Question 20

definition of monosaccharide

Answer 20

carbohydrate with 3-7 carbons

Question 21

definition of ketose

Answer 21

a monosaccharide that contains a ketone carbonyl group

Question 22

Why are cofactors needed in many enzyme reactions?

Answer 22

to provide functional groups necessary for a reaction that cannot be provided by amino acid side chains

Question 23

What is sucrose made up of?

Answer 23

glucose and fructose

Question 24

(T/F) Cellulose is made of glucose molecules and readily digestible in human.

Answer 24

false

Question 25

Which Vitamin is water soluble?
1. D
2. A
3. E
4. C

Answer 25

4. C

Question 26

Carbohydrates contain the following elements:

Answer 26

carbon, hydrogen, and oxygen

Question 27

What disacchraride is made from a glycosidic bond between Galactose and Glucose?

Answer 27

lactose

Question 28

A condensation reaction between sugars forms this type of bond:

Answer 28

glycosidic bond

Question 29

The carbohydrate form that is nutritionally useful to plants, animals, and humans is the _______.

Answer 29

D-form