Subject

Biology

Class

ICSE Class 12

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
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 Multiple Choice QuestionsShort Answer Type

21.

Answer the following :

What is the cause of sickle-celled anaemia?

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22.

Answer the following :

Why does blood not clot in blood vessels?

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23.

Elaborate the following :

G-6PD

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24.

Elaborate the following :

CT-Scan

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25.

Elaborate the following : 

VAM 

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26.

Elaborate the following :

ADH

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27.

Elaborate the following :

DPD

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28. Give four differences between Meristematic and Permanent tissues. 
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29. Enlist four physiological effects of gibberellins.


Four physiological effects of gibberellins are :

(1) Stem elongation primarily internode elongation.

(2) Promote seed germination and break dormancy of buds and tubers.

(3) Promote flowering of long-day plant under non inductive conditions.

(4) They increase leaf and flower size in many plants.

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30.

Define the following :

Water Potential   

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