Previous Year Paper year:2017 : ICSE-X-Biology

Home Learn Fast select Course

Change Unit Change Subject Last Menu

ICSE-X-Biology

Previous Year Paper year:2017

with Solutions -

Note: Please signup/signin free to get personalized experience.

Note: Please signup/signin free to get personalized experience.

10 minutes can boost your percentage by 10%

Note: Please signup/signin free to get personalized experience.

#
ICSE X | Biology
Board Paper 2017
ICSE Board
Class X Biology
Board Paper 2017
(Two hours)
General Instructions: Total Marks: 80
Answers to this paper must be written on the paper provided separately.
You will not be allowed to write during the first 15 minutes.
This time is to be spent in reading the question paper.
The time given at the head of the paper is the time allowed for writing the
answers.
Attempt all questions from Section I and any four questions from Section II.
The intended marks of questions or parts of questions are given in
brackets [ ].

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

#1
Ans : 1.

#1-a [5]
Name the following:

#1-a-i
The process by which root hairs absorb water from the soil.
Ans : Osmosis

#1-a-ii
The organ which produces urea.
Ans : Kidney

#1-a-iii
The kind of lens required to correct Myopia.
Ans : Concave

#1-a-iv
The pituitary hormone which stimulates contraction of uterus during child
birth.
Ans : Oxytocin

#1-a-v
The international health organisation which educates people in accident
prevention.
Ans : Red Cross

#1-b [5]
Choose the correct answer from each of the four options given below:

#1-b-i
The prime source of chlorofluorocarbons is:
A. Vehicular emissions
B. Industrial effluents
C. Domestic sewage
D. Refrigeration equipments
Ans : D. Refrigeration equipment
(extra info: Sources of chlorofluorocarbon are refrigerators, aerosol-sprayers and
packing material styrofoam.)

#1-b-ii
Penicillin obtained from a fungus is:
A. Antibiotic
B. Antiseptic
C. Antibody
D. Antiserum
Ans : A. Antibiotic
(extra info: Penicillin was the first antibiotic discovered by Alexander Fleming.)

#1-b-iii
Marine fish when placed in tap water bursts because of:
A. Endosmosis
B. Exosmosis
C. Diffusion
D. Plasmolysis
Ans : A. Endosmosis
(extra info: When a marine fish is placed in tap water which is hypotonic as compared to
the fish.s body, water will enter the fish.s body by endosmosis.)

#1-b-iv
Surgical method of sterilisation in a woman involves cutting and tying of:
A. Ureter
B. Uterus
C. Urethra
D. Oviduct
Ans : D. Oviduct
(extra info: Tubectomy is the ligation of oviducts, i.e. they are cut and tied with nylon
thread to close the passage of the ovum.)

#1-b-v
Synthesis phase in the cell cycle is called so, because of the synthesis of
more:
A. RNA
B. RNA and proteins
C. DNA
D. Glucose
Ans : C. DNA
(extra info: DNA synthesis occurs during the S-phase of the cell cycle.)