Previous Year Paper year:2010 : ICSE-X-Biology

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ICSE-X-Biology

Previous Year Paper year:2010

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ICSE Board
Class X Biology
Board Paper 2010
(One hour and a half)
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 allotted 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 type of cell division which occurs in the cells of the reproductive organs.
Ans : Meiosis

#1-a-ii
A plant with sunken stomata.
Ans : Nerium

#1-a-iii
A foreign body which induces the formation of antibodies in the body.
Ans : Antigen

#1-a-iv
The place where fertilisation occurs in the female reproductive system.
Ans : Fallopian tube

#1-a-v
An organisation which looks after maternal and child welfare centres.
Ans : Red Cross

#1-b [5]
State whether the following statements are true or false. If false, rewrite the correct
form of the statement by changing the first or last word only.

#1-b-i
Tubectomy is the surgical method of sterilisation in males.
Ans : False; Vasectomy is the surgical method of sterilisation in males.

#1-b-ii
Mitosis is the type of cell division occurring in the cells of injured parts of the
body.
Ans : True.

#1-b-iii
Photolysis is the process of splitting of water molecules in the presence of grana
and temperature.
Ans : False; Photolysis is the process of splitting of water molecules in the presence of grana and light.

#1-b-iv
Dilation of the pupil is brought about by the sympathetic nervous system.
Ans : True.

#1-b-v
Chromosomes other than the pair of sex chromosome are called alleles.
Ans : False; Chromosomes other than the pair of sex chromosome are called autosomes.