Previous Year Paper year:2019 : ICSE-X-Biology

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ICSE-X-Biology

Previous Year Paper year:2019

with Solutions - page 3

#1-f-ii
Insulin, Adrenaline, Pepsin, Thyroxine.

#1-f-iii
Axon, Dendron, Photon, Cyton.

#1-f-iv
Chicken pox, Colour blindness, Haemophilia, Albinism.

#1-f-v
Polythene bag, Crop residue, Animal waste, Decaying vegetable.

#1-g
Expand the following biological abbreviations :
[5]

#1-g-i
ABA
Ans : Abscisic acid

#1-g-ii
IAA
Ans : Indole acetic acid

#1-g-iii
ATP
Ans : Adenosine triphosphate

#1-g-iv
DNA
Ans : Deoxyribonucleic acid

#1-g-v
TSH
Ans : Thyroid stimulating hormone

#1-h

#1-i
Study the picture given below and answer the following questions:
[5]

#1-i-i
Identify the type of pollution.
Ans : Water pollution

#1-i-ii
Name one pollutant that causes the above pollution.
Ans : Detergents, Chemicals

#1-i-iii
Mention the impact of this pollution on human health.
Ans : Cholera, Jaundice, Typhoid, Dysentery, Diarrhoea