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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION -ADVANCED ZOOLOGY AND BIOTECHNOLOGY
FIRST SEMESTER APRIL 2018
17/16UPB1AL01- BASICS OF PLANT BIOLOGY
Date: 30-04-2018 Dept. No. Max. 100 Marks
Time: 01:00-04:00
PART A (10 x 2 20 Marks)
Answer the following, each within 50 words.
1. Draw and label the structure of Ectocarpus.
2. Which is called resurrection plant? Give reason.
3. Write the binomial of any four plants of the family Rutaceae.
4. Mention any two timber yielding plants with their scientific names and uses.
5. Define hydathodes.
6. What are Laticifers?
7. Draw the ultra-structure of pollen wall and label the parts.
8. What is double fertilization?
9. What is TCA cycle?
10. Give the differences between transpiration and translocation.
PART B X 7 35 Marks)
Answer the following, each within 500 words; Draw diagrams and flowcharts wherever necessary
11. Describe the internal structure of the stem of Funaria.
OR
Write notes on anatomical features of corolloid root of Cycas.
12. Describe the characteristic features of the family Lamiaceae.
OR
Write the common name,binomial,family,useful part and uses of any two essential oilsand
pulses.
13. Describe the anatomy of the dicot stem.
OR
Give a brief account on different types of stomata.
14. Describe the structure of microsporangium.
OR
Bring out the differences between nuclear and cellular endosperm with examples.
15. List the physiological effects of auxins and gibberellins
OR
Draw the flowchart for steps in glycolysis.
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PART C X 15 45 Marks)
Answer any three of the following, each within 1200 words. Draw diagrams and flowcharts wherever necessary
16. Describe the life cycle of Puccinia.
17. Write the common name,binomial,family,the morphology of the useful parts and uses of any two vegetables,spices,medicinal plants and cereals.
18. Distinguish between dicot and monocot leaf.
19. Describe embryogenesis in dicotyledons.
20. Explain the mechanism and significance of light reaction in photosynthesis.