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Old Question Paper 2070 – Biology | Science Class 11

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Biology - CellQuestion Paper of Biology – Old is Gold
For: Science Grade XI
Year: 2070 (2013) | Botany + Zoology
Subject Code: 114 ‘D’

Note: This question paper contains Botany portion in Group ‘A’ and Zoology portion in Group ‘B’ So use separate answer sheet for Group ‘A’ and Group ‘B’, First use answer sheet for Group ‘A’ – Candidates are required to give their answer in their own words as far as practicable. The figures in the margin indicate full marks.
Time: 3 hrs | Full Marks: 75 | Pass Marks: 27

Group ‘A’ Botany

Attempt all the questions.
1. Answer any seven questions in very short. [7 X 1 = 7]

a) What do you mean by cell inclusions?
b) What do you mean by karyokinesis?
c) Why meiosis is called as reductional cell division?
d) Define taxonomy.
e) What is coenocytic hyphae?
f) Why ferns are called vascular cryptogams?
g) What is inflorescence?
h) What is xerosere?
i) What do you mean by parasitism?
j) What is the impact of altitude in vegetation?

2. Describe in brief any five. [5 X 3 = 15]

a) Describe the types of lipids with examples.
b) The structure of nucleus.
c) Differentiate between a prokaryotic and eukaryotic cell.
d) The sporopyte of marchantia.
e) An account of scalariform conjugation of spirogyra.
f) The importance of forest.
g) Structure of virus.

3. Describe the life cycle of Mucor with well well labelled diagrams. [7.5]
Describe the family papilionaceae with necessary diagrams Write any two plants belong to this sub family.
4. Discuss the main components of ecosystems in detail with suitable examples. [8]

Group ‘B’ – Zoology

Attempt all the questions
1. Answer in short on any seven. [7 X 1 = 7]

a) Define the term physiology.
b) What can you do after studying biology?
c) In what condition of earth, life originated?
d) When and where Cro-Magnon man appeared?
e) What do you understand by monogenetic life cycle?
f) Define the term pseudocoelom.
g) Why do the frogs need hibernation and aestivation?
h) Write about sexual dimorphism.
i) Name the respiratory pigment found in earthworm.
j) What is wildlife conservation?

2. Describe in brief on any five. [5 X 3 = 15]

a) Oparin – Haldane theory.
b) The development of Giraffe’s neck.
c) How is a new species formed in nature?
d) Mention the characteristics features of mammalia.
e) The process of copulation in earthworm.
f) Sketch well-labelled figure of Paramecium (No description).
g) Functions of liver of frog.

3. Give an account of Reproductive system of frog [7.5]
Explain life cycle of Plasmodium in mosquito.
4. Discuss about the sources, effects and control measures of air pollution. [8]

Posted By : Hari Prasad Chaudhary | Comment RSS | Category : Class XI, HSEB Notes
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