IGNOU MFN 2 SOLVED ASSIGNMENT

Included:

MFN 002 (July 2025) - ENGLISH

ASSIGNMENT -2

TMA-2

Nutritional Biochemistry

Course Code: MFN-002

Assignment Code: MFN-002/AST-2/TMA-2/25-26

Last Date of Submission: 30th November, 2025

Maximum Marks:100

This assignment is based on Units 1 - 12 of the MFN-002 Course

Section A -Descriptive Question

(80 Marks)

There are ten questions in this part. Answer all questions.

1.a) What are monosaccharides? Explain any two properties of monosaccharides.

b) Explain the following terms:

i. Saponification

ii. Rancidity

2.a)What are Eicosonoids? Briefly describe their role in the body.

b) Discuss the four basic structural levels of proteins, giving exampls

3. Discuss the properties and importance of following vitamins in our body:

a) Vitamin C

b) Vitamin K

4. a) Explain the mechanism of enzyme action in our body. Enumerate the factors affecting enzyme activity.

b) Explain the process of absorption of amino acids and peptides in our body.

5. a) What is gluconeogenesis? Discuss the four substrates used in gluconeogenesis.

b) What are the components of the electron transport chain? Explain briefly.

6. a) How cholesterol is metabolized in our body? Explain.

b) Differentiate between the following sets of terms:

i. LDL and HDL

ii. Ketogenic and Glucogenic amino acid

7.a) Briefly describe synthesis of Pyrimindine in our body.

b) How and where toxic ammonia is converted into urea in our body? Explain briefly.

8. a) Define free radicals. Explain physiological mechanisms to limit free radical damage

b) What is the composition and function of chylomicron?

9.  a) Describe functions of following minerals:

i. Calcium

ii. Iron

b) Briefly enumerate biochemical role of following hormones:

i. Insulin

ii. Glucocorticoids

10. a) List the common inborn errors due to carbohydrate metabolism. Explain briefly any two of them.

b) Define haemoglobinopathies. Elaborate any one in detail.

Section B - OTQ (Objective Type Questions)

1. Explain the following in 2-3 sentences. Also give the structure wherever possible.

a.Recombinnt DNA

b. Mutarotation

C. Sterols

d. Zwitterion

e. Holoenzyme

f. Competitive inhibition

g. Coenzyme A

h. Chiral carbon atom

i. Micelle

j. Glycolysis

2. Name the defective enzyme in the following diseases:

a) Alcaptonuria

b) Gaucher's disease

c) Homocystinuria

d) Pentosuria

e) Albinism

3. Give the significance/role of following:

a) Conversion of IMP to AMP

b) Vitamin B6 in transamination

c) Oxygen free radicals

d) Phenylalanine hydroxylase

e) Fight or flight response

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