Exam Details
| Subject | Plant Diversity-I | |
| Paper | ||
| Exam / Course | Bachelor Degree Programme (Elective Course: Life Science) | |
| Department | School of Sciences (SOS) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages 8 ILSE-12!
BACHELOR OF SCIENCE (B.Sc.)
Term-End Examination
December, 2016
01.465
LIFE SCIENCE
LSE-12 PLANT DIVERSITY-I
Time: 3 hours Maximum Marks: 75
Note: Answer the questions as directed in the Sections .B and C. Draw neat and labelled diagrams wherever necessary.
SECTION A
Note: All the qUestions in this section are compulsory.
1. Fill in the blanks
DNA of eukaryotes are compounded with proteins known as .
Open sea away from the coast is rich in algae.
Red rot of sugarcane is caused by .
Sphagnum is also known as moss.
The young fern leaves show typical incurling, termed as
2. Which of the following statements are True and which are False?
Xylem is star-shaped in case of plectostele.
Bryophytes do not require water for fertilization.
Lichens are capable of fixing carbon dioxide.
Blue-green algae are used as biofertilizers.
Microcystis forms water bloom in the sea.
3. Match the items of Column A with the most appropriate items of Column B 5xl=5
Column A Column B
Equisetum (A) Unicellular
Uredospores Silicified wall
Diatoms (C) Puccinia
Nostoc (D) Peltate sporangia
Yeast (E) Prokaryote
SECTION B
Note: Answer any six questions. All questions carry equal marks.
4. Explain the different types of sexual reproduction found in fungi. 5
5. List the criteria used for algal classification. 5
6. Describe the basis of five kingdom classification. 5
7. Why are cyanobacteria grouped with bacteria rather than with algae? 5
8. Draw well-labelled diagrams of any two of the following: 2 1/2 2 1/2
L.S. Funaria capsule
L.S. Marchantia sporophyte
T.S. Pteris leaflet
9. Differentiate between the following 2 1/2 2 1/2
Elaters and Pseudoelaters
Mycobiont and Phycobiont
10. Write short notes on any two of the following 2 1/2 2 1/2
Marsilea Sporocarp
Ecological role of bryophytes
Heterocyst
11. What was the condition of earth when life originated on it Briefly mention the contribution of S. Miller (1953). 5
12. List five important products obtained by utilizing the fermenting ability of fungi. 5
SECTION C
Note: Answer any three questions. All questions carry equal marks.
13. Describe the economic importance of lichens. 10
14. Comment on the evolutionary trends of sporophytes in bryophytes. 10
15. Why ferns are preferred as tools for morphogenetic studies 10
16. Present a well-labelled graphical disease cycle of Puccinia graminis tritici. 10
17. Describe the unique features of slime moulds. 5
Draw well-labelled diagrams of life-cycle of a cellular slime mould. 5
BACHELOR OF SCIENCE (B.Sc.)
Term-End Examination
December, 2016
01.465
LIFE SCIENCE
LSE-12 PLANT DIVERSITY-I
Time: 3 hours Maximum Marks: 75
Note: Answer the questions as directed in the Sections .B and C. Draw neat and labelled diagrams wherever necessary.
SECTION A
Note: All the qUestions in this section are compulsory.
1. Fill in the blanks
DNA of eukaryotes are compounded with proteins known as .
Open sea away from the coast is rich in algae.
Red rot of sugarcane is caused by .
Sphagnum is also known as moss.
The young fern leaves show typical incurling, termed as
2. Which of the following statements are True and which are False?
Xylem is star-shaped in case of plectostele.
Bryophytes do not require water for fertilization.
Lichens are capable of fixing carbon dioxide.
Blue-green algae are used as biofertilizers.
Microcystis forms water bloom in the sea.
3. Match the items of Column A with the most appropriate items of Column B 5xl=5
Column A Column B
Equisetum (A) Unicellular
Uredospores Silicified wall
Diatoms (C) Puccinia
Nostoc (D) Peltate sporangia
Yeast (E) Prokaryote
SECTION B
Note: Answer any six questions. All questions carry equal marks.
4. Explain the different types of sexual reproduction found in fungi. 5
5. List the criteria used for algal classification. 5
6. Describe the basis of five kingdom classification. 5
7. Why are cyanobacteria grouped with bacteria rather than with algae? 5
8. Draw well-labelled diagrams of any two of the following: 2 1/2 2 1/2
L.S. Funaria capsule
L.S. Marchantia sporophyte
T.S. Pteris leaflet
9. Differentiate between the following 2 1/2 2 1/2
Elaters and Pseudoelaters
Mycobiont and Phycobiont
10. Write short notes on any two of the following 2 1/2 2 1/2
Marsilea Sporocarp
Ecological role of bryophytes
Heterocyst
11. What was the condition of earth when life originated on it Briefly mention the contribution of S. Miller (1953). 5
12. List five important products obtained by utilizing the fermenting ability of fungi. 5
SECTION C
Note: Answer any three questions. All questions carry equal marks.
13. Describe the economic importance of lichens. 10
14. Comment on the evolutionary trends of sporophytes in bryophytes. 10
15. Why ferns are preferred as tools for morphogenetic studies 10
16. Present a well-labelled graphical disease cycle of Puccinia graminis tritici. 10
17. Describe the unique features of slime moulds. 5
Draw well-labelled diagrams of life-cycle of a cellular slime mould. 5
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
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Subjects
- Animal Diversity- II
- Animal Diversity-I
- Cell Biology
- Developmental Biology
- Ecology
- Electric & Magnetic Phenomena
- Genetics
- Mathematical Methods in Physics-I
- Mathematical Methods In Physics-II
- Optics
- Oscillations And Waves
- Physiology
- Plant Diversity-I
- Taxonomy and Evolution
- Thermodynamics & Statistical Mechanics