Multiple choice questions on Glycolysis.

Select the correct multiple answer by using ONE of the keys A, B, C, D or E below.

A) 1,2,3 are correct

B) 1 & 3 are correct

C) Only 4 is correct

D) 1 & 2 are correct

E) All are correct

1) Glycolytic pathway regulation involves:

1) Mg2+ as a cofactor.

2) Feedback, Product, Inhibition by ATP.

3) Allosteric simulation by ADP.

4) Allosteric inhibition by ATP.

5) All of the above.

2) Which of these enzymes regulates the glycolytic steps?

1)Phosphofructokinase.

2) Hexkinase.

3) Pyruvate Kinase.

4) Lactase.

3)Fructose-2,6 Bisphosphate:

1) Activates Phosphofructokinase.

2) Activates Glyceraldehyde-3-Phosphate.

3) Inhibits Fructose-1,6 Bisphosphate.

4) Inhibits Fructose-6-Phosphate.

4) Glucose from the breakdown of Glycogen is acquired from:

1) The muscles by phosphorolysis.

2) The liver by phosphorolysis.

3) The muscles by hydrolysis.

4) Feeder pathways.

5) Glycogen has:

1) α-1,4 linkages.

2) α-1,6 linkages.

3) α-1,4 and β-1,6 linkages.

4) α-1,4 and α-1,6 linkages.

5) α-1,6 and β-1,6 linkages.

Quiz on Amino Acids and Proteins

1) Glutamic acid is one of the two acidic amino acids. What is the other?

a) Methionine

b) Aspartate

c) Arginine

d) Histidine

e) Threonine

2) Which amino acid differs from Alanine in that one of the methylenic hydrogens is replaced by a hydroxyl group?

a) Cysteine

b) Threonine

c) Serine

d) Methionine

e) Isoleucine

3) Isoleucine is one of the two amino acids that have two chiral centers. What is the other?

a) Aspartate

b) Fructose

c) Threonine

d) Glycine

e) Alanine

4) Leucine and Valine are two of the three amino acids having branched hydrocarbon side chains. What is the third?

a) Lysine

b) Isoleucine

c) Serine

d) Glycine

e) Threonine

5) What amino acid has a secondary amino group, rather than a primary α-amino group?

a) Phenylalanine

b) Serine

c) Glycine

d) Proline

e) Alanine