M/NUT5036/SEM1/JAN2020/4
ST MARY’S UNIVERSITY
TWICKENHAM, LONDON
BSc Degree Examination students registered for
Level FIVE
Title: Nutritional Biochemistry
Code: NUT5036
Semester: One
Date: 10th January, 2020
Time: 9:30 am – 11:30 am
TIME ALLOWED: TWO HOURS
SECTION A:
Multiple choice; answer ALL questions (2 marks each)
1. The breakdown of food molecules to release energy is termed:
a. Metabolism
b. Anabolism
c. Catabolism
d. Transamination
2. During starvation, the Krebs cycle becomes less able to oxidise acetyl CoA.
Why is this?
a. Because rising glucose levels inhibit acetyl CoA.
b. Oxaloacetate is diverted to gluconeogenesis.
c. Elevated insulin promotes conversion of acetyl CoA into TAG.
d. All of the above.
3. During β-oxidation the following sequence of reaction repeats:
a. Oxidation, hydration, oxidation, cleavage.
b. Reduction, dehydration, reduction, condensation.
c. Condensation, oxidation, dehydration, oxidation.
d. Cleavage, reduction, oxidation, reduction.
4. What are the two key enzymes involved in the conversion of non-carbohydrate
precursors into triacylglycerol (de novo lipogenesis)?
a. Fatty acid synthase and acetyl CoA carboxylase
b. Fatty acid synthase and insulin
c. Acetyl CoA carboxylase and malonyl CoA
d. Lipoprotein lipase and fatty acid synthase
Page 1 of 4
ST MARY’S UNIVERSITY
TWICKENHAM, LONDON
BSc Degree Examination students registered for
Level FIVE
Title: Nutritional Biochemistry
Code: NUT5036
Semester: One
Date: 10th January, 2020
Time: 9:30 am – 11:30 am
TIME ALLOWED: TWO HOURS
SECTION A:
Multiple choice; answer ALL questions (2 marks each)
1. The breakdown of food molecules to release energy is termed:
a. Metabolism
b. Anabolism
c. Catabolism
d. Transamination
2. During starvation, the Krebs cycle becomes less able to oxidise acetyl CoA.
Why is this?
a. Because rising glucose levels inhibit acetyl CoA.
b. Oxaloacetate is diverted to gluconeogenesis.
c. Elevated insulin promotes conversion of acetyl CoA into TAG.
d. All of the above.
3. During β-oxidation the following sequence of reaction repeats:
a. Oxidation, hydration, oxidation, cleavage.
b. Reduction, dehydration, reduction, condensation.
c. Condensation, oxidation, dehydration, oxidation.
d. Cleavage, reduction, oxidation, reduction.
4. What are the two key enzymes involved in the conversion of non-carbohydrate
precursors into triacylglycerol (de novo lipogenesis)?
a. Fatty acid synthase and acetyl CoA carboxylase
b. Fatty acid synthase and insulin
c. Acetyl CoA carboxylase and malonyl CoA
d. Lipoprotein lipase and fatty acid synthase
Page 1 of 4
