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 | June, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 8 ILSE-12I
BACHELOR OF SCIENCE (B.Sc.)
Term-End Examination
June, 2016
ooSQ6
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 5x1=5
Cell walls of fungi contain .
is a highly differentiated cell in blue-green algae.
In 98% of lichens the fungal partner belongs to .
In Marchantia the mature capsule contains spores and .
The rhizome of fern is covered with .
2. Which of the following statements are true and which are false? 5x1=5
Equisetum is heterosporous.
Pellia is strictly monoecious.
Yeast cell is of prokaryotic type.
Life originated about 3.5 billion years ago.
Chrysophyta are mostly unicellular.
3. Match the items of Column A with the most appropriate items of Column B 5x1=5
ColumnA ColumnB
Marsilea Parasite
Puccinia Selaginella
Cooksonia Heteroecious
Virus Sporocarp
Trabeculae Fossil
SECTION B
Note: Answer any six questions. All questions carry equal marks.
4. List the common methods of vegetative reproduction in fungi. 5
5. Describe the various habitats of algae. 5
6. With the help of diagrams, describe the concept of endosymbiosis. 5
7. What organisms are included in plant kingdom and why? 5
8. Draw well-labelled diagrams of any two of the following: 2 1/2 2 1/2
Morphology of Fucus thallus
Cross-section of a Lichen thallus
Conidiophore bearing conidia in a fungus
9. Differentiate between the following 2 1/2 2 1/2
Cleistothecium and Perithecium
Eusporangiate and Leptosporangiate sporangia
10. Write short notes on any two of the following: 2 1/2 2 1/2
Rhynia
Mycorrhizal fungi
Anthoceros capsule
11. What is the significance of studying aerobiology of fungi? 5
12. Describe the unique features of Sphagnum leaves . 5
SECTION C
Note: Answer any three questions. All questions carry equal marks.
13. Describe the economic uses of bryophytes. 10
14. Enumerate the various steps involved in the formation of prothallus from a spore in Pteris. 10
15. Describe the stelar evolution in Pteridophytes. 10
16. Prepare a detailed account of the disease cycle of Red Rot of Sugarcane. 10
17. Describe the economic importance of fungi. 10
BACHELOR OF SCIENCE (B.Sc.)
Term-End Examination
June, 2016
ooSQ6
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 5x1=5
Cell walls of fungi contain .
is a highly differentiated cell in blue-green algae.
In 98% of lichens the fungal partner belongs to .
In Marchantia the mature capsule contains spores and .
The rhizome of fern is covered with .
2. Which of the following statements are true and which are false? 5x1=5
Equisetum is heterosporous.
Pellia is strictly monoecious.
Yeast cell is of prokaryotic type.
Life originated about 3.5 billion years ago.
Chrysophyta are mostly unicellular.
3. Match the items of Column A with the most appropriate items of Column B 5x1=5
ColumnA ColumnB
Marsilea Parasite
Puccinia Selaginella
Cooksonia Heteroecious
Virus Sporocarp
Trabeculae Fossil
SECTION B
Note: Answer any six questions. All questions carry equal marks.
4. List the common methods of vegetative reproduction in fungi. 5
5. Describe the various habitats of algae. 5
6. With the help of diagrams, describe the concept of endosymbiosis. 5
7. What organisms are included in plant kingdom and why? 5
8. Draw well-labelled diagrams of any two of the following: 2 1/2 2 1/2
Morphology of Fucus thallus
Cross-section of a Lichen thallus
Conidiophore bearing conidia in a fungus
9. Differentiate between the following 2 1/2 2 1/2
Cleistothecium and Perithecium
Eusporangiate and Leptosporangiate sporangia
10. Write short notes on any two of the following: 2 1/2 2 1/2
Rhynia
Mycorrhizal fungi
Anthoceros capsule
11. What is the significance of studying aerobiology of fungi? 5
12. Describe the unique features of Sphagnum leaves . 5
SECTION C
Note: Answer any three questions. All questions carry equal marks.
13. Describe the economic uses of bryophytes. 10
14. Enumerate the various steps involved in the formation of prothallus from a spore in Pteris. 10
15. Describe the stelar evolution in Pteridophytes. 10
16. Prepare a detailed account of the disease cycle of Red Rot of Sugarcane. 10
17. Describe the economic importance of fungi. 10
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- Animal Diversity-I
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- 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