BSc Biotechnology Sem VI 2018 19 Apr 2018-19 BIOTECH BIOCHEMISTRY Question Paper - Mumbai University | munotes

Questions asked in this paper

• 1. Attempt all questions

1. Q1 (a) Doas directed: (Any Six) 6 marks
   • 1. What are globular proteins?
   • 2. State true or false: 4- hydroxyproline plays an essential role in the folding of collagen
   • 3. Define protein motifs
   • 4. What is salting out of proteins?
   • 5. Name the calcium binding protein of skeletal muscle
   • 6. Fill in the blank: The transition between T state to R state of hemoglobin is triggered by
   • 7. State true or false: Myoglobin is an oxygen storage protein
   • 8. What is sarcomere?
   • 9. Explain Bohr effect
   • (b) Answer the following: (Any Two) 14
   • 1. Describe tertiary structure of o keratin Explain chromatography techniques with reference to protein purification
   • 3. Describe molecular chaperons assisted protein folding
2. Q2 a) Name the Enzyme catalyzing the following reactions: (Any Six) 6 marks
   • 1. Sucrose 6 phosphate to sucrose Glycogen, to glycogen
   • 3. Squalene to squalene 2,3 epoxide
   • 4. to Sucrose 6 phosphate pyrophosphate to farnesyl pyrophosphate
   • 6. Glycogen synthase a to glycogen synthase b
   • 7. Starch, to Starch
   • 9. to
   • b) Give an account on the following: (Any Two) 14
   • 1. Peptidoglycan biosynthesis in bacteria
   • 2. Steps involved in formation of squalene from isoprenes
   • 3. Mechanism action of starch synthase on starch biosynthesis
3. Q3 (a) Doas Instructed: (Any Six) 6 marks
   • 1. Name the hormone that controls the production of progesterone
   • 2. State true or false: Glucagon is secreted by a-cells of pancreas and opposes the action of
   • 3. Name the hormone produced by human placenta 4, Fill in the blank: is associated with elevated TSH levels and an abnormal increase in the size of thyroid gland
   • 5. Give one function of PTH
   • 6. Mention the name of the proteins associated with the transport of thyroid
   • 8. Name the hormone which induces contraction of uterus during labour pain
   • 9. Name the hormone associated with Cushing’s syndrome
   • (b) Answer the following: (Any Two) 14
   • 1. What are estrogens? Discuss on physiological and biochemical functions of Discuss on the biochemical functions of glucocorticoids Elaborate on the posterior pituitary hormone — ADH
4. Q4 (a) Name the following: (Any Six) 6 marks
   • 1. Functionally active form of Vitamin D
   • 2. Provitamin A is
   • 3. Compound excreted in urine during deficiency of Thiamine
   • 4. The vitamin derived hormone that regulates calcium homeostasis
   • 5. The inorganic element found in the structure of majority of high-energy
   • 6. The principal cation of extracellular fluid
   • 7. Element present in thyroid hormone
   • 8. Deficiency of calories leads to
   • 9. Vitamin that is known as anti-pernicious anemia factor
   • (b) Answer the following questions (Any Two) 14
   • 1. Explain the role of Vitamin K in our body functions
   • 2. Write briefly about significance of trace elements
   • 3. What is Obesity? Explain its connection with adipose tissue
5. Q5 Write short notes (Any Four) 20 marks
   • (a) Normal and sickle cell hemoglobin
   • (b) Atherosclerosis
   • (c) Role of glycogenin in glycogenesis
   • (d) Disorders associated with insulin Five functions of Vitamin C

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