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

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 Multiple Choice QuestionsShort Answer Type

11.

State the contribution of each of the following scientists :

Hansen 

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12.

State the contribution of each of the following scientists :

T.R. Malthus.


T.R. Malthus proposed a theory of human population growth and stated that when un-checked population grows geometrically whereas the means of its subsistence grows only arithmetically. This would cause an imbalance between the growth in the means of subsistence and in the growth of population when the imbalance becomes too pronounced, then some factors like hunger, epidemics and war would reduce the population to a level with the means of subsistence. Such population balancing contingencies were termed as ‘positive checks’ by Malthus.

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13.

Give the exact location and function of the following :

Passage cells

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14.

Give the exact location and function of the following :

Grana

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15.

Give the exact location and function of the following :

Epiglottis

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16.

Give the exact location and function of the following :

Parotid gland

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17.

Give the exact location and function of the following :

Embryo sac.

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18.

Answer the following :

Mention the site of formation of glyoxylate from glycolate in photorespiration.

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19.

Answer the following :

Which protein binds Ca2+ that is released from the sarcoplasmic reticulum?

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20.

Answer the following : 

What is Apical Dominance ?

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