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Question-1
The pairing of nitrogenous bases is such that thymine always pairs with:
(A)
Adenine
(B)
Guanine
(C)
Uracil
(D)
Cytosine
Question-2
Select the fibrous proteins.
(A)
Fibroin & Insulin
(B)
Keratin & Collagen
(C)
Haemoglobin & Insulin
(D)
Enzymes & hormones
Question-3
The non protein part of haemoglobin which consists of four haem groups.
(A)
Alpha group
(B)
Carboxylic group
(C)
Amino group
(D)
Prosthetic group
Question-4
A weak electrical attraction between a hydrogen in a molecule of water and an oxygen of another molecule of water is called as:
(A)
Hydrogen bond
(B)
Oxygen bond
(C)
Hydroxy bond
(D)
Water bond
Question-5
Which of these is an organic alcohol having 3 carbon atoms?
(A)
Glycerol
(B)
Triglyceraldehyde
(C)
Triose
(D)
Acetic acid
Question-6
The sequence of nitrogen bases of which strand/strands determine the order of amino acids of a polypeptide chain?
(A)
Both strands
(B)
Sense strand
(C)
Nonsense strand
(D)
5' 3' strand
Question-7
Which protein is present in silk?
(A)
Fibrin
(B)
Collagen
(C)
Keratin
(D)
Fibroin
Question-8
Latent heat of vaporisation in sweating and transpiration is gained from:
(A)
Water itself
(B)
Atmosphere
(C)
Body of organism itself
(D)
Energy source like sun
Question-9
Glucose is a:
(A)
Triose sugar
(B)
Tetrose sugar
(C)
Pentose sugar
(D)
Hexose sugar
Question-10
The density of water is:
(A)
1.0 g cm
-3
(B)
1. 026 g cm
-3
(C)
0. 79 g cm
-3
(D)
Changing from time to time
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Cambridge Advanced Grade 12
IGCSE
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Transport in Mammals
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