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

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11.

Give the exact location and function of the following:
 
Tectorial membrane


Location : The TM is located above the spiral limbus and the spiral organ of Corti and extends along the longitudinal length of the cochlea parallel to the BM.

Function : The tectorial membrane partially covers the hair cells in Organ of Corti and vibrate when fluid sound waves hit it.

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12.

Give the exact location and function of the following:

Leydig's cells

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13.

Give the exact location and function of the following:

Stroma

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14.

Give the exact location and function of the following:

Mast cells

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15.

Give the exact location and function of the following:

Pacinian corpuscles.

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16.

Answer in brief :

Why does skin become wrinkled in old age?

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17.

Answer in brief :

Which part of soil water is available to plants for absorption by roots?

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18.

Answer in brief :

What makes the apical meristem of the root sub-terminal?

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19.

Answer in brief :

Name the enzyme which catalyses bicarbonate formation in RBCs.

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20.

Answer in brief:

Which form of phytochrome induces flowering in SDP?

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