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

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ICSE-X-Biology

Previous Year Paper year:2015

with Solutions - page 2

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

#1-c-i
A single highly coiled tube where sperms are stored, gets concentrated and
mature us known as:
A. Epididymis
B. Vas efferentia
C. Vas deferens
D. Seminiferous tubule
Ans : (A) Epididymis

#1-c-ii
Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase
Ans : (A) Metaphase

#1-c-iii
BCG vaccine is effective against
A. Cholera
B. Mumps
C. Tuberculosis
D. Measles
Ans : (C) Tuberculosis

#1-c-iv
Which one of the following associated with the maintenance of the posture?
A. Cerebrum
B. Cerebellum
C. Thalamus
D. Pons
Ans : (B) Cerebellum

#1-c-v
An example of non-biodegradable waste is
A. Vegetable peels
B. Sewage
C. Livestock waste
D. DDT
Ans : (D) DDT

#1-d [5]
Mention the exact location of the following structures:

#1-d-i
Thylakoids
Ans : Thylakoids: In the grana of the chloroplast in plant cells.

#1-d-ii
Organ of Corti
Ans : Organ of Corti: In the endolymph present in the middle concentric layer of cochlea in the internal ear.

#1-d-iii
Lenticels
Ans : Lenticels: On the older stem of plants.

#1-d-iv
Bicuspid value
Ans : Bicuspid value: Between the left auricle and left ventricle.

#1-d-v
Loop of Henle
Ans : Loop of Henle: In the medulla part of kidney.

#1-e [5]
The diagram given below represents a certain stage of mitosis:

#1-e-i
Identify the stage of cell division.
Ans : Anaphase.

#1-e-ii
Name the parts labelled A and B
Ans : A - Spindle fibre. B-Centromere