Previous Year Paper year:2015 : ICSE-X-Biology

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ICSE-X-Biology

Previous Year Paper year:2015

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ICSE Board
Class X Biology
Board Paper 2015
(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 [ ].

# [40]
Section : I
Attempt all questions from this Section

#1

#1-a [5]
Name the following:

#1-a-i
The process of uptake of mineral ions against the concentration gradient using
energy from cell.
Ans : Active Absorption

#1-a-ii
The form in which glucose in stored in liver.
Ans : Glycogen

#1-a-iii
The vein that carries oxygenated blood.
Ans : Pulmonary vein

#1-a-iv
The cross between two parents having one pair of contrasting characters.
Ans : Monohybrid cross

#1-a-v
The structure formed by the villi of the embryo and the uterus of the mother.
Ans : Placenta.

#1-b [5]
The statements given below are false. Rewrite the correct form of the statement by
changing the word which is underlined:

#1-b-i
Alpha cells of pancreas secrete Insulin.
Ans : Alpha cells of pancreas Secrete glucagon.

#1-b-ii
Formalin is an example of an Antiseptic.
Ans : Formalin is an example of Disinfectant.

#1-b-iii
CNG is mainly responsible for the formation of acid rain.
Ans : Fossil fuel is mainly responsible for acid rain.

#1-b-iv
Sulphadiazine is an example of an Antiseptic.
Ans : Sulphadiazine'is an example of Sulphonamide.

#1-b-v
Cretinism is caused due to deficiency of Adrenaline.
Ans : Cretinism is caused by deficiency of Thyroxine.