IGNOU MFN-02 (July 2025 – January 2026) Assignment Questions
Section A –Descriptive Question
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 examples.
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. Recombinant 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
IGNOU MFN-02 (July 2024 – January 2025) Assignment Questions
Section A –Descriptive Questions
There are ten questions in this part. Answer all questions.
1. a) What is stero-isomerism? Explain giving an example.
b) What are polysaccharides? What are its types? Explain giving examples.
2. a)Give the classification of lipids based on the chemical structure.
b) What is hydrogenation? What are the harmful health effects of partial hydrogenation of fats?
c) Give the general structure of amino acid with one example each of polar, non-polar, acidic and basic amino acids.
3. a) How will you classify Vitamins based on their solubility?
b) Briefly explain the mechanism of enzyme action.
c) Differentiate between competitive and non-competitive enzyme inhibition.
4. a) Explain the process of carbohydrate digestion in our body.
b) What is the role of pancreas in digestion?
5. a) Briefly explain how blood glucose level is regulated in the body?
b) What is the net production of ATP when one molecule of glucose is converted to pyruvic acid?
c) Briefly explain the components of electron transport chain.
6. a) What is the site for the synthesis of fatty acids? Explain giving the reactions involved in the de-novo synthesis of fatty acids.
b) Define Lipoprotein and apolipoprotein with suitable examples.
7. a) What are Ketogenic and Glucogenic amino acids? Discuss their fate in our body.
b) What is the end product of purine degradation and what disease is caused because of this?
8. a) Give the role of free radicals and antioxidants in lipid peroxidation.
b) Discuss the role of Vitamin K in the coagulation of blood.
c) Enumerate the physiological role of iron.
9. a) Illustrate the role of parathormone in calcium homeostasis.
b) Enumerate the different second messengers used in mechanism of hormone action.
10. a) List the common inborn errors due to protein metabolism. Explain briefly any two of them.
b) Differentiate between sickle cell anaemia and thalasemia.
Section B – OTQ (Objective Type Questions)
1. Explain the following in 2-3 sentences. Also give the structure wherever possible.
a. Osazone reaction
b. Eicosanoids
c. Isoelectric pH
d. Holoenzyme
e. Pinocytosis
f. Ketosis
g. Cyclic AMP
h. Folate Trap
i. Transamination
j. Anaplerotic reactions
2. Name the defective enzyme in the following diseases:
a) Tyrosinemia
b) Phenylketonurea
c) Alkaptonurea
d) Niemann-Pick-Disease
e) Von-Gierk’s Syndrome
3. Match the items in List I with items in List II :
List I List II
I Calcitonin A Pineal
II Oxytocin B Pancreas
III Glucagon C Parathyroid
IV Glucocorticoids D Pituitary
V Epinephrine E Thyroid
F Adrenal Cortex
G Adrenal Medull
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