1
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION -PLANT BIOLOGY AND PLANT BIOTECHNOLOGY
FIRST SEMESTER APRIL 2018
PB 1508- ALGOLOGY AND BRYOLOGY
Date: 25-04-2018 Dept. No. Max. 100 Marks
Time: 01:00-04:00
PART-A
ANSWER THE FOLLOWING, EACH WITHIN 50 WORDS ONLY: (10x2=20)
1. What are phycobilins?
2. Define anisogamy
3. What are akinetes?
4. Write notes on coenobium.
5. Mention the uses of carageenin.
6. Comment on algae as biofuel.
7. What is heteromorphic alternation of generations?
8. Write notes on foot.
9. Distinguish elaters frompseudoelaters.
10. What is operculum?
PART-B
ANSWER THE FOLLOWING QUESTIONS, EACH WITHIN 500 WORDS.
DRAW DIAGRAMS WHEREVER NECESSARY:
11a. Describe the range of thallus in algae.

b. Write the salient features of cyanophyceae.
12a. Describe the habit of Chara.

b. Describe the LS of the male conceptacle of Sargassum.
13a. What is SCP? List the factors affecting the biomass of Spirulina production.

b. What are the applications of agar agar and alginates?
14a. Describe the various modes of vegetative reproduction in bryophytes.

b. Give an account on the economic importance of bryophytes.
2
15a. Describe the gametophyte of Marchantia.

b. Describe the female branch and the internal structure of archegonia in Funaria.
PART-C
ANSWER ANY THREE OF THE FOLLOWING, EACH NOT EXCEEDING 1200 WORDS.
DRAW DIAGRAMS WHEREVER NECESSARY: (3x15=45)
16. Describe the various life cycle patterns in algae.
17. Explain sexual reproduction in Gracilaria.
18. Enumerate the steps of the mass cultivation of BGA. Add a note on its field
applications.
19. Bring out the characteristics of the various classes of bryophytes.
20. Describe the sporophyte of Anthoceros.