Old Question Paper 2073 (2016) – Biology (Botany + Zoology) Grade XI

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Biology - ZoologyHSEB | Old is Gold
Question Paper of Biology
Year: 2073 (2016) | Grade XI
Science | Botany + Zoology
Subject Code: 114’D’

Full Marks: 75 | Pass Marks: 27 | Time: 3 hrs.
Candidates are required to give their answer in their own words as far as practicable. The figures in the margin indicate full marks.

Note: This question paper contains Botany portion in group ‘A’ and Zoology portion in Group ‘B’. So use separate answer sheets for Group ‘A’ and Group ‘B’. First use answer sheet for Group ‘A’.

Group ‘A’ – Botany | Attempt all questions.
1. Answer in short on nay seven. [7 X 1 = 7]

a) Define prokaryotic cell.
b) How do you identify cell plate?
c) What does it mean by cell inclusions?
d) Define mycota.
e) What is heterocyst?
f) Mention about sori.
g) State about cruciform corolla.
h) What do you mean by grazing food chain?
i) Define scavenging.
j) Illustrate nitrogen assimilation.

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

a) Biological role of protein.
b) Structure and function of mitochondria.
c) Process of crossing over.
d) Economic importance of bacteria.
e) Male cone of Pinus.
f) Structure and economic importance of virus.
g) Importance of mountain ecosystem.

3. Describe the structure and reproduction of Spirogyra with necessary diagrams. [7.5]
OR
Describe the family Gramineae in semitechnical terms with identifying characters, floral diagram and floral formula with two examples of economic value.
4. What is ecosystem? Describe in detail about the pond ecosystem. [8]

Group ‘B’ – Zoology | Attempt all questions.
1. Answer in short on any seven [7 X 1 = 7]

a) Write the meaning of Anatomy and Morphology.
b) Mention one important scope of zoology.
c) Who is the pioneer of Biogenesis?
d) What are fossils?
e) What is the common name of Paramecium?
f) What are homologous organs?
g) When are copulatory pads developed in Frog?
h) What is anadromous migration? Give example.
i) What do you mean by pollution?
j) Give two examples of endangered species of Nepal.

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

a) Describe Miller Urey experiment on origin of life.
b) Give general characters of Phylum Porifera.
c) Describe liver schizogony of Plasmodium.
d) Discuss cocoon formation and structure in Earthworm.
e) Describe mechanism of breathing in Frog.
f) Explain the control of air pollution.
g) Discuss the importance of wild life.

3. Describe typical nephridia of Earthworm with labeled diagram. [7.5]
OR
Described the structure and working mechanism of heart of frog with labeled diagram.
4. Describe the Theory of Inheritance of Acquired characters with its draw back. [8]

Posted By : MeroSpark | Comment RSS | Category : Class XI, HSEB Notes
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One Comment

  1. Posted November 29, 2017 at 10:33 pm

    can it provide the solution of old is gold qution collection

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