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Biochem quiz

The following are single answer questions;

1. Which of these biomolecules is a non reducing sugar?
A) Glucose
B) Sucrose
C) Fructose
D) Lactose
E) Maltose

2. Epimers are stereoisomers of carbohydrates that:
A) Have four different groups attached to the central carbon
B) Differ around the anomeric carbon
C) Are mirror images of each other
D) Differ around one carbon atom
E) None of the above

3. What is the cofactor for alcohol dehydrogenase?
A) Mg 2+
B) Zn 2+
C) Fe 2+
D)Cu 2+
E)Mn 2+

4. Oxidoreductases catalyse:
A) Transfer of electrons
B) Group transfer reactions
C) Transfer of groups within molecules
D) Transfer of functional groups to water
E) None of the above

5. The linked reaction is catalysed by what enzyme:
A) Pyruvate decarboxylase
B) Pyruvate dehydrogenase
C) Pyruvate kinase
D) Hexokinase
E) Phosphofructokinase-1

The following are multiple answer questions.
Select the correct multiple answer using ONE of the keys A, B, C, D or E as follows:
A. 1, 2 and 3 are correct
B. 1 and 3 are correct
C. 2 and 4 are correct
D. only 4 is correct
E. all are correct

6. Single membrane organelles are:
1)Lysosomes
2)Ribosomes
3)Golgi apparatus
4)Nucleus

7. TPP is the cofactor for:
1) Pyruvate dehydrogenase
2) Lactate dehydrogenase
3) Alpha-ketoglutarate dehydrogenase
4) Alcohol dehydrogenase

8. Which of the following are saturated fatty acids:
1) Oleic acid
2) Palmitic acid
3) Linolenic acid
4) Stearic acid

9. Which of these fatty acids have the same number of carbon atoms:
1) Linolenic acid
2) Stearic acid
3) Oleic acid
4) Palmitic acid

10. Which of the following nitrogen bases are Pyrimidines:
1) Uracil
2) Xanthine
3) Cytosine
4) Guanine

By Amethyst

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