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

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ICSE-X-Biology

Previous Year Paper year:2017

with Solutions - page 2

#1-c [5]
The statements given below are incorrect. Rewrite the correct statement by
changing the underlined words of the statements.

#1-c-i
The Graafian follicle, after ovulation turns into a hormone producing issue
called Corpus callosum.
Ans : The Graafian follicle after ovulation turns into a hormone-producing tissue
called corpus luteum.

#1-c-ii
Deafness is causal due to the rupturing of the Pinna.
Ans : Deafness is caused due to the damage to the eardrum.

#1-c-iii
Gyri and Sulci are the folds of Cerebellum.
Ans : Gyri and sulci are the folds of cerebrum.

#1-c-iv
Free movement of solutes in and out of the cell takes place across the cell
membrane.
Ans : Free movement of solutes in and out of the cell takes place across the cell
wall.

#1-c-v
The solvent used to dissolve the chlorophyll pigments while testing a leaf
for starch is Soda lime.
Ans : The solvent used to dissolve the chlorophyll pigment while testing a leaf for
starch is methylated spirit.

#1-d [5]
Given below are sets of five terms each. Rewrite the terms in correct order in a
logical sequence.
Example : Large intestine, Stomach, Mouth, Small intestine, Oesophagus.
Answer : Mouth --> Oesophagus --> Stomach --> Small intestine --> Large
intestine.

#1-d-i
Fibrin, Platelets, Thromboplastin, Fibrinogen, Thrombin.
Ans : Platelets -> Thromboplastin -> Thrombin -> Fibrinogen -> Fibrin

#1-d-ii
Cochlea, Malleus, Pinna, Stapes, Incus.
Ans : Pinna -> Malleus -> Incus -> Stapes -> Cochlea

#1-d-iii
Receptor, Spinal cord, Effector, Motor neuron, Sensory neuron.
Ans : Receptor -> Sensory neuron -> Spinal cord -> Motor neuron -> Effector

#1-d-iv
Uterus, Parturition, Fertilisation, Gestation, Implantation.
Ans : Fertilisation -> Uterus -> Implantation -> Gestation -> Parturition

#1-d-v
Caterpillar, Snake, Owl, Frog, Green leaves.
Ans : Green leaves -> Caterpillar -> Frog -> Snake -> Owl

#1-e [5]
Choose the ODD one out of the following terms given and name the
CATEGORY to which the others belong:

#1-e-i
Aqueous humour, Vitreous humour, lris, Central canal
Ans : Central canal
(extra info :Aqueous humour, vitreous humour and iris are parts of the human eye).

#1-e-ii
Formalin, Iodine, DDT, Lime
Ans : Lime
(Extra info: Formalin, iodine and DDT are chemical substances.)