B.Sc. I (Biotechnology) (Semester II) (CBCS) Examination, 2018
Biochemistry and Cell Physiology
Paper I BIOCHEMISTRY
Day and Date Thursday, 19-4-2018 Marks 70
Time 10.30 a.m. to 1.00 p.m.
Instructions All questions carry equal marks.
Figures to right indicate full marks.
Draw neat and labeled diagrams.
1. Rewrite the following sentences by using correct alternative 14
Cysteine is an example of containing amino acid.
phosphorus magnesium cobalt sulfer
One helical turn of B form of DNA has number of base
pairs.
11 12 9 10
In triacylglycerol number of fatty acids are attached to
glycerol molecule.
1 2 3 4
oxygen carrying protein in human beings.
Insulin Haemoglobin
Oxytocin Albumin
Fluidity of plasma membrane is maintained by
glycoprotein phospholipid
spingolipid cholesterol
The disaccharide sucrose is composed of
glucose and glucose
glucose and galactose
fructose and galactose
glucose and fructose
The sugar is present in milk.
glucose galactose lactose ribose
Set P
Set P
SLR-SA 17
The carbohydrates cannot be further hydrolised.
monosaccharide disaccharide
oligosaccharide polysaccharide
Primary structure of proteins involves type of bond.
peptide hydrogen disulfide glycosidic
10) Liver oils of various fishes are the richest sources of
retinol riboflavin thiamine niacin
11) The compounds having same molecular formula but different structures are
known as
optically active compound isomers
oligomers epimers
12) The sugar in RNA is
deoxyribose hexose fructose ribose
13) is example of non-reducing sugar.
glucose fructose sucrose ribose
14) Beta pleated sheet structures are observed in level of protein
structure.
primary secondary tertiary quaternary
2. Answer the following 14
State the Chargaff's rule.
ii) Draw the chemical structure of sucrose.
iii) What is mutarotation
iv) Give classification of amino acids.
Which are deficiency disorders of Vitamin K and Vitamin C.
vi) Write a note on peptide bond.
vii) Differentiate between DNA and RNA.
Set P
SLR-SA 17
3. Answer the following (any 10
Explain Watson-Crick model of DNA.
ii) Explain classification of proteins.
iii) Write about Fluid Mosaic model of plasma membrane.
Discuss the forces involved in stabilization of native structure of protein. 4
4. Answer any two of the following 14
Explain titration curve for glycine and histidine amino acids.
ii) Explain structure and function of t-RNA.
iii) Write an account on polysaccharides.
5. Answer any two of the following 14
Write source, requirement and deficiency disorders retinol and thiamine.
ii) Discuss the structure and functions of compound lipids.
iii) Explain structural levels of proteins.