M.Sc. (Semester (CBCS) Examination Nov/Dec-2018
Biotechnology
CONCEPT OF BIOCHEMISTRY
Time: 2½ Hours Max. Marks: 70
Instructions: All questions are compulsory.
Figures to the right indicate full marks.
Q.1 Multiple choice questions:- 14
the degradative phase of metabolism in which organic
nutrient molecules are converted into smaller, simpler end products.
Anabolism Catabolism
Metabolism Bioenergetics
The last of the 20 amino acid to be found was
Threonine Tryptophan
Tyrosine Histidine
Complete oxidation of a glucose molecule to CO2 yields ATP.
32 24
36 38
Electrons are carried between photosystem II and photosystem I by
soluble protein.
Pheophytin Ferodoxin
Plasticyanin Cytochromes
Rubisco catalyzes the condensation of O2 with ribulose 5 bisphophatase to
form
Glycerin 2-phophoglycolate
3-phophoglycolate Serine
The double bond is introduced into the fatty acid by an oxidative reaction
catalyzed by
mixed function oxidase phosphatase
reductase isomerase
Glycogen storage Cori disorders is also known as
type IIa type IIb
type IIIa type IIIb
The light-absorbing pigments of thylakoid or bacterial membranes are
arranged in functional arrays called
chlorophyll accessory pigments
photosystem light harvesting complex
Rubisco catalyzes the condensation of O2 with ribulose 5-bisphotosphate to
form 3-phospholgycerate and
2-phosphoglycolate 3-phosphoglycolate
glycealdehyde 2 phosphate glyceraldehyde 3 phosphate
10) The pyrurvate formed by decarboxylation of malate in bundle-sheath cells is
transferred back to the mesophyll cells, where it is converted to PEP by an
unusual enzymatic reaction catalyzed by
pyruvate kinase phosphate kinase
pyruvate phosphate kinase pyruvate phosphate dikinase
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SLR-VE-71
11) is the substrate for sucrose synthesis.
UTP glucose UDP glucose
ADP glucose ATP glucose
12) A genetic lack of hypoxanthine-guanine phosphoribosyltransferase activity,
result in
Lesch-Nyhan syndrome phenylketonuria
cori disease pome disease
13) is an example of lipid soluble hormone.
ADH oxytocin
insulin cortisol
14) is an example of non reducing sugar.
Sucrose Glucose
Ribose Fructose
Q.2 Answer the following any four:-
Draw the structure of chloroplast.
Define secondary messenger.
Write a note on compensation point.
Give two examples inhibitors of ETC.
Write a note on exocrine and endocrine gland.
08
Write notes on. (Any Two)
Write notes on Pheromones.
Write notes on Laws of thermodynamics.
Write notes on Phenylketonuria urea.
06
Q.3 Answer the following. (Any Two)
Explain z scheme of electron transfer in plants.
Describe synthesis of starch in plants.
Write a note on auxin phytohormone.
08
Answer the following. (Any One)
Write a detailed account on structural levels of protein.
Explain in detail chemical classification of hormones.
06
Q.4 Answer the following. (Any Two)
Write in detail free energy change.
Explain in detail fatty acid biosynthesis.
Write a note on inhibitors of electron transport chain.
10
Answer the following. (Any One)
Write a detailed account on sickle cell anemia.
Write a note on energy rich bonds.
04
Q.5 Answer the following. (Any Two) 14
Write a detail account on structure and function of carbohydrates.
Explain in detail pentose phosphate pathway.
Write a note on C3 cycle of CO2 fixation in plants.