Jaypee Institute of Information Technology (JIIT) 2008 B.E TEST 3 : BIOCHEMISTRY - Question Paper

JAYPEE UNIVERSITY OF INFORMATION TECHNOLOGY

WAKNAGHAT

TEST-3 III SEMESTER 2008 COURSE CODE: 07B3IBTI02    MAXM. TIMF: IHR 30 MIN

COURSE NAME: BIOCHEMISTRY

COURSE CREDIT: 4_MAXM. MARKS: 30_

01 How nucleoside monophosphates are converted (o nuclcosidc triphosphates? (2)

Q2. What do APRT and HGPRT stand for and what is their role?    (2)

03. Discuss catabolism of purine nucleotides.    (2)

Q4. Compare and contrast fatty acid synthesis and p-oxidation?    (S)

Q5. Calculate the ATP and NADH requirement for the synthesis of lauric acid (C12:0) from acetyl-CoA.    (2)

Q6. What are ketone bodies? What is their role in normal physiological conditions and fasting?    (3.5)

O'?. What will be the effect of carbamoyl phosphate synthetase deficiency on urea cycle components? What could be given as part of therapy and why?    (4)

Q8. Answer bricflv:

(7.5)

i)    What is niaple syrup urine disease?

ii)    Name amino acids derived from pyruvate.

iii)    Why is the catabolism of isoleucine said to be both glucogenic and ketogenic?

iv)    What is the regulator)' point for ammonia production in cells?

v)    What is the mcchanism which takes care of free amino acids generated by muscles during excessive exercise?

Q9. Ciluconeogencsis is energetically expensive but essential'*. Justify the statement.(2)

Attachment: jaypee-institute-of-information-technology--jiit--2008-b-e-21261-1.jpg

Earning:   Approval pending.