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.

Name the smallest bone in the human body.

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22.

Answer the following :

What are tropic hormones?

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23.

Answer the following :

Define gene pool.

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24.

Answer the following :

What is a bicollateral vascular bundle ?

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25.

Mention the most significant function /role of the following :

Fusiform initials


Fusiform initials are the mother cells of all xylem and phloem elements as well as of all other cells that are oriented parallel to the organ’s axis. They are flat, elongated with pointed ends and highly vacuolate. It is their spindle-like shape that caused their name. It helps in growth.

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26.

Mention the most significant function /role of the following :

Rennin

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27.

Mention the most significant function /role of the following :

Organ of Corti

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28.

Mention the most significant function /role of the following :

Pons Varoli

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29.

Mention the most significant function /role of the following :

Leghaemoglobin

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30.

Give reasons for the following :

Abscisic acid is also called stress hormone.

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