Previous Year Paper year:2014 : ICSE-X-Biology

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ICSE-X-Biology

Previous Year Paper year:2014

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ICSE Board
Class X Biology
Board Paper 2014
(Two hours)
General Instructions: Total Marks: 80
1. Answers to this paper must be written on the paper provided separately.
2. You will not be allowed to write during the first 15 minutes.
This time is to be spent in reading the question paper.
3. The time given at the head of the paper is the time allowed for writing the answers.
4. Attempt all questions from Section I and any four questions from Section II.
5. The intended marks of questions or parts of questions are given in brackets [ ].

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Section : I
Attempt all questions from this section.

#1

#1-a [5]
Name the following:

#1-a-i
The part of the brain associated with memory.
Ans : Cerebrum

#1-a-ii
The ear ossicle which is attached to the tympanum.
Ans : Malleus/Hammer

#1-a-iii
The type of gene which is not expressed in the presence of a contrasting allele.
Ans : Recessive gene

#1-a-iv
The hormone secreted by islets of langerhans.
Ans : Insulin, Glucagon

#1-a-v
The process of conversion of ADP into ATP during photosynthesis.
Ans : Photophosphorylation.

#1-b [5]
State the main function of the following:

#1-b-i
Cerebrospinal fluid
Ans : Provide mechanical protection to brain or to provide nourishment to brain.

#1-b-ii
Eustachian tube
Ans : Maintain/Equalize air pressure on either sides of the ear drum.

#1-b-iii
Suspensory ligament of the eye
Ans : Hold the lens in position.

#1-b-iv
Sperm duct
Ans : Transport sperm from the epididymis to penis for discharge.

#1-b-v
Lenticels
Ans : To facilitate transpiration in older stem.