Municipality Examination
Biology - Grade XI
Examination - 2079 (2022)
Regular Students
Time - 3 hrs
Full Marks - 75
Pass Marks - 27
Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Also Check:-
Note: Don't use Dark mode
Attempt all the questions
Group 'A'
Circle the correct one from given alternatives. [11 X 1 = 11]
1. ........... is the father of zoology.
a. Aristotle
b. Mendel
c. Darwin
d. De Vries
2. The site of protein synthesis is
a. Mitochondria
b. Golgi body
c. Ribosome
d. ER
3. Wings of pigeon, mosquito, and bat show
a. Atavism
b. Mutation
c. Divergent evolution
d. Convergent evolution
4. Which protozoan is unlikely to have a contractile vacuole?
a. Euglena
b. Paramecium
c. Amoeba
d. Plasmodium
5. Red list data deals with the
a. Endemic plants
b. Plants that are extinct
c. Endemic animals
d. Animals on verge of extinction.
6. The first Ramsar site in Nepal is
a. Koshi Tapu reserve
b. Rara lake
c. Mai Pokhari
d. Ghodaghodi Tal
7. Greenhouse effects are caused by:
a. Green plants.
b. Infrared rays
c. UV-rays
d. X-rays
8. Langtang National Park is famous for
a. Red Panda
b. Tiger
c. Swamp deer
d. Rabbit
9. Xerophytes have
a. Long roots
b. Short roots
c. Tricksters
d. All
10..Influenza is caused by
a. Prions
b. Bacterial
c. Virus
d. Viroid's
11. Antibiotics are mostly obtained from
a. Fungi
b. Viruses
c. Bacteria
d. Lichens
Group 'B'
The short answer to the question. [8x5=40]
1. Describe the structure of DNA.
2. Describe the haplontic type of sexual reproduction in yeast.
or
Describe the scalariform conjugation of spirogyra.
3. Describe the distribution of Pinus in Nepal.
4. Write down the significance of mitosis.
5. Discuss the ecological pyramid of a pond.
6. Mention the effects of air pollution on human health.
7. Explain liver schizogony of Plasmodium.
8. Write short notes on buccopharyngeal respiration.
or
Justify the statement that the earthworms are the friends of farmers, how?
Group 'C'
Give long answers to the questions. [3 X 8 = 24]
1. What is an alternation of generation? Explain it in Fern with suitable diagrams.
or
Give the distinguishing characteristics of the family Brassicaceae with its floral formula and floral diagram. Mention botanical names of three economically important plants of this family
2. What is digestion? Describe in detail the process of food, feeding and digestion in earthworms.
3. Discuss with examples how Lamarckism explains the theory of organic evolution.
Best of Luck
Photos:-
