1
Code No: R7102304
I B.Tech (R07) Regular & Supplementary Examinations, June 2009 FUNDAMENTALS OF BIOLOGY (Bio-Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. How would you differentiate Prokaryotes from Eukaryotes?
[16]
2. Describe in brief the primary internal structure of a monocot root and a dicot root. [16] 3. Explain the different larval forms of crustaceans.
[16]
4. Describe the mechanism of transcription.
[16]
5. Describe the function of the nuclear envelope and nucleolus.
[16]
6. Elaborate on the anatomy and physiology of axons.
[16]
7. What is the Calvin cycle and what is its relationship to autotrophy? What is the key enzyme involved in autotrophic CO2 fixation in most organisms? [16] 8. Outline the bioassays that can be carried out in traditional ways and with new biotechnologyderived methods. Explain how biotechnology-based tests are being used to identify changes in indicator species to gauge the presence of pollutants in the environment. [16] ?????
2
Code No: R7102304
I B.Tech (R07) Regular & Supplementary Examinations, June 2009 FUNDAMENTALS OF BIOLOGY (Bio-Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. Define photoautotrophic and chemoheterotrophic microbes.
[16]
2. Describe the significance of cell division, cell elongation and cell differentiation in plant growth. [16] 3. Comment on: (a) Trochophore larva (b) Onychophora (c) Blood Vascular system in Annelids.
[5+5+6]
4. Give a detailed account of structure and function of RNA.
[16]
5. Why is digestion important? How food is digested?
[16]
6. (a) Give a detailed account on the structure of neuron. (b) How are neurons distinguished and categorized?
[8+8]
7. What is the Calvin cycle and what is its relationship to autotrophy? What is the key enzyme involved in autotrophic CO2 fixation in most organisms? [16] 8. Enumerate on the production and application of monoclonal antibodies. ?????
[16]
3
Code No: R7102304
I B.Tech (R07) Regular & Supplementary Examinations, June 2009 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. Define phytohormones, and explain the different types of plant growth regulators. [16] 3. Comment on : (a) Gemmules (b) Heteronereis (c) Salient features of porifera.
[5+5+6]
4. Describe the structure of genes, gene families, gene promoters, introns, exons and pseudogenes. [16] 5. Give a detailed account the mechanism of breathing.
[16]
6. Give a detailed account on function of cerebral cortex in hearing.
[16]
7. What is the Calvin cycle and what is its relationship to autotrophy? What is the key enzyme involved in autotrophic CO2 fixation in most organisms? [16] 8. Biofertilizers for nutrient management in organic production of agri/horticultural crops. Discuss? [16] ?????
4
Code No: R7102304
I B.Tech (R07) Regular & Supplementary Examinations, June 2009 FUNDAMENTALS OF BIOLOGY (Bio-Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. List, in order, the beneficial effects of bacteria.
[16]
2. Write an essay on the phenomenon of photoperiodism in plants.
[16]
3. Comment on : (a) Gemmules (b) Heteronereis (c) Salient features of porifera.
[5+5+6]
4. Describe the different types of DNA with neat diagrams.
[16]
5. Tabulate the summary of digestive process.
[16]
6. How hearing is performed by auditory system?
[16]
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. What are the important anatomical pecularities that distinguish VAM from other mycorrhizae? Which is the most commonly found mycorrhiza in the ecosystems? What are the commercial applications of mycorrhiza? [16] ?????