Grade 11 Botany 2071 Pastpaper

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Botany

Grade 11 , 2071

Regular Examination Paper

Full Marks : 37.5
Pass Marks : 13.5
Time : 1hr 30min
Set C Q.NO. 1 (a)
 

Define suicidal bag.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (b)
 
 

What does it mean by cell organelles?  

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (c)
 
 

Mention about anaphase.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (d)

What do you mean by phylogeny?

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (e)
 
Illustrate about Nostoc.
[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (f)

Define Protonema.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (g)
 

Give significance of root nodule.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (h)

Mention about ecological succession.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (i)

Illustrate about competition.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (j)
Define synecology.
[Marks : 1 ] Show Ans
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Set C Q.NO. 2 (a)

Structure of DNA.

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (b)

Structure and function of ER 

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (c)

Significance of meiosis.

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (d)
Structure and economic importance of bacteria
[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (e)

Asexual reproduction of Spirogyra

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (f)

Structure of antheridiophore in Marchantia

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (g)
Carbon cycle 
[Marks : 3 ] Show Ans
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Set C Q.NO. 3

Define alternation of generation and describe it in the life cycle of Dryopteris.

[Marks : 7.5 ] Show Ans
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Set C Q.NO. 3 (or)

Describe the family Cruciferae in semi technical terms with distinguishing characters, floral diagram and floral formula with two examples of the economic importance.

[Marks : 7.5 ] Show Ans
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Set C Q.NO. 4

Describe the ecological pyramids in detail with the reference to number biomass and energy. 

[Marks : 8 ] Show Ans
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Set D Q.NO. 1 (a)
 
 
Define plasmodesmata.   
[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (b)
 
 

What does it mean by cell plate? 

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (c)
 
 

Mention about spindle fibre. 

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (d)

Illustrate about binomial nomenclature.

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (e)
 

What do you mean by cyanobacteria?  

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (f)

Define algae.

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (g)

Elaborate the persistent calyx.

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (h)
Mention about detritus food chain. 
[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (i)
What does it mean by predation?
[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (j)
Illustrate about acid rain. 
[Marks : 1 ] Show Ans
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Set D Q.NO. 2 (a)

Structure of DNA. 

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (b)

Structure and function of Golgi apparatus   

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (c)

Significance of meiosis.

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (d)

Economic importance of fungi 

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (e)

Indirect lateral conjugation in spirogyra:

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (f)

Structure of Marchantia

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (g)

Benefit of afforestation.

[Marks : 3 ] Show Ans
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Set D Q.NO. 3

Define alternation of generation and describe it m the life cycle of Fern. 

[Marks : 7.5 ] Show Ans
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Set D Q.NO. 3 (or)

Describe the family Gramineae in semi technical terms with distinguishing characters, floral diagram and floral formula with two examples of the economic importance.

[Marks : 7.5 ] Show Ans
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Set D Q.NO. 4

Define ecosystem and describe pond ecosystem with its components in detail.

[Marks : 8 ] Show Ans
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