Biomolecules & Human Physiology- Biochemistry-BSC-Nagpur-Summer-2018

Bachelor of Science (B.Sc.) Semester—I Examination
BIO-CHEMISTRY (Biomolecules & Human Physiology)

Optional Paper—1
Time : 3 Hours
Maximum Marks : 50

N.B. :— (1) All questions are compulsory and carry equal marks.
(2) Draw well labelled diagram wherever necessary.

1. Describe the reaction of carbohydrates with :

(a) Phenyl hydrazine [5M]

(b) Na/Hg. [5M]

OR

Give classification of carbohydrates with suitable examples. [10M]

2. Describe :

(a) Saponification reaction and number. [5M]

(b) Rancidity of fats and acid value. [5M]

OR

Describe the classification of lipids with suitable examples. [10M]

3. Describe the molecular organization of contractile system. [10M]

OR

Describe the digestion and absorption of fats in alimentary canal. [10M]

4. Describe the composition of membranes. [10M]

OR

(a) Describe the Na/K Pump. [5M]

(b) Describe simple diffusion with suitable examples. [5M]

5. Answer any ten of the following :

(i) Define epimerism.[1M]

(ii) Draw a chemical structure of b-D-glucopyranose.[1M]

(iii) Name the monosaccharides present in sucrose.[1M]

(iv) Write chemical structure of 9, 12, octadecadienoic acid.[1M]

(v) Name any one essential fatty acid.[1M]

(vi) What is Reichert-Meissel Number ?[1M]

(vii) What is G-actin and F-actin ?[1M]

(viii) Name the receptor protein present in post synaptic membrane of a neuromuscular junction.[1M]

(ix) Name any one enzyme present in salivary juice.[1M]

(x) Name the scientists who proposed fluid-mosaic model of cell membrane.[1M]

(xi) Na/K pump is an example of which type of transport.[1M]

(xii) What is meant by integral membrane proteins ?[1M]