Saturday, October 24, 2009

biochemistry-btechbiotechnology-jntu old question papers

Code No: R05212301 Set No. 3
II B.Tech I Semester Supplimentary Examinations, November 2008
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. Explain starch and glycogen are stored fuels? [16]
2. How the glucose level of blood is maintained in animals? Discuss the role of Hor-
mones in sugar regulation in the animal body. [16]
3. How is a concentration gradient of proton transformed into ATP? [16]
4. Summarize the sequence of process involved in Nitrification. [16]
5. What is a nitrogen cycle? Sketch the basic events involved in it. What are the
enzymes involved in this cycle? [16]
6. How a molecule of palmitic acid is completely oxidized in a mitochondrion. Enu-
merate the enzyme catalyzed reactions and calculate the energy yield? [16]
7. Enumerate the di erent stages involved in the extraction of energy from food stu s.
Outline the major pathways involved in this process. [16]
8. (a) Compare the basic structural features of chloroplasts and mitochondria.
(b) How does photosynthesis in green and purple bacteria di er. [8+8]

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