07a12102-fundamentals-of-biology

Set No. 1

Code No: 07A12102

I B.Tech Supplimentary Examinations, Aug/Sep 2008 FUNDAMENTALS OF BIOLOGY (Bio-Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Viruses as agents of diseases. Explain your answer.

[16]

2. Write an essay on the phenomenon of photoperiodism in plants.

[16]

3. Write an account on the polyphyletic origin of metazoans.

[16]

4. Define the structure and replication of DNA.

[16]

5. Microtubules, microfilaments, and intermediate filaments are all main components of the cytoskeleton. Explain. [16] 6. Enumerate on: (a) Functional anatomy of cochlea (b) Transmission of sound waves in cochlea.

[8+8]

7. Define lithotrophy. List three different compounds that lithotrophs can oxidize as sources of energy. What is the biological importance of lithotrophic metabolism? [16] 8. Enumerate on the production and application of monoclonal antibodies. ⋆⋆⋆⋆⋆

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Set No. 2

Code No: 07A12102

I B.Tech Supplimentary Examinations, Aug/Sep 2008 FUNDAMENTALS OF BIOLOGY (Bio-Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Would sexual or asexual reproduction occur in fungi? Give reasons for your answer. [16] 2. Explain the Bentham and Hookers System of classification in detail.

[16]

3. Comment on : (a) Gemmules (b) Heteronereis (c) Salient features of porifera.

[5+5+6]

4. Define translation and protein biosynthesis.

[16]

5. How the nervous system does exert a profound influence on all digestive processes? [16] 6. What is a synapse? How are they differentiated? Discuss in detailed about synaptic transmission. [16] 7. (a) Explain the significance of the ATP/ADP cycle. (b) Describe the nature of light and how it is associated with the release of electrons from a photosystem. [8+8] 8. Biofertilizers for nutrient management in organic production of agri/horticultural crops. Discuss? [16] ⋆⋆⋆⋆⋆

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Set No. 3

Code No: 07A12102

I B.Tech Supplimentary Examinations, Aug/Sep 2008 FUNDAMENTALS OF BIOLOGY (Bio-Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Can you explain why some protozoans are harmful to humans?

[16]

2. (a) Define systemic botany? What are the objectives of classification? (b) Discuss four types of classification and explain in detail. (c) What are the objectives, goals and aim of plant systematic?

[6+5+5]

3. Write the salient features of the class reptilia.

[16]

4. Describe the mechanism of reverse transcription.

[16]

5. Give the function and cellular location of the following basic eukaryotic organelles and structures: cell membrane, nucleus, endoplasmic reticulum, Golgi bodies, lysosomes, mitochondria, ribosomes, chloroplasts, vacuoles, and cell walls. [16] 6. Give a detailed account on function of cerebral cortex in hearing.

[16]

7. Describe the role that chlorophylls and the other pigments found in chloroplasts play to initiate the light-dependent reactions. [16] 8. Discuss in detail about Monoclonal antibody therapy. ⋆⋆⋆⋆⋆

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Set No. 4

Code No: 07A12102

I B.Tech Supplimentary Examinations, Aug/Sep 2008 FUNDAMENTALS OF BIOLOGY (Bio-Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Would sexual or asexual reproduction occur in fungi? Give reasons for your answer. [16] 2. Describe the significance of cell division, cell elongation and cell differentiation in plant growth. [16] 3. Write an account on the polyphyletic origin of metazoans.

[16]

4. Define the one gene-one enzyme hypothesis.

[16]

5. What triggers blood clotting?

[16]

6. How hearing is performed by auditory system?

[16]

7. Illustrate the differences between cyclic and noncyclic photophosphorylation. What are the products? How and why water splits and oxygen releases? [16] 8. What are biofertilizers? Discuss on N2 -Fixing Cyanobacteria as Biofertilizers. [16] ⋆⋆⋆⋆⋆

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