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Question-1
The structure of a protein molecule can be changed if the bonds which hold it in shape are broken; the process known is as:
(A)
Deoxygenation
(B)
Denaturation
(C)
Decarboxylation
(D)
Dehydrogenation
Question-2
Density of water is maximum at:
(A)
4000
o
C
(B)
400
o
C
(C)
40
o
C
(D)
4
o
C
Question-3
Select the properties of polysaccharides.
(A)
Polymers of sugars
(B)
Bonds between sugar are glycosidic bonds.
(C)
Starch and glycogen are polysaccharides.
(D)
All polysaccharides are soluble in water.
Question-4
The uneven distribution of charge on the molecule is referred to as:
(A)
Bipolar group
(B)
Dipole
(C)
Unipole
(D)
Multipole
Question-5
Cellulose is not easy to digest as starch since:
(A)
Links between beta glucose is not easy to break
(B)
Links between alpha glucose is not easy to break
(C)
It is a protein
(D)
It is a lipid.
Question-6
In a pond, during winter, the water freezes:
(A)
From top to bottom
(B)
Bottom to top
(C)
Unevenly
(D)
Whole water freeze together
Question-7
A particular length of DNA specifying the amino acid sequence for one polypeptide is called as a:
(A)
Genetic code
(B)
Codon
(C)
Sense strand
(D)
Gene
Question-8
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-9
The specific heat capacity of water is:
(A)
4.2 x 10
3
K
-1o
C
-1
(B)
2.4 x 10
3
K
-1o
C
-1
(C)
1.5 x 10
3
K
-1o
C
-1
(D)
4 x 10
3
K
-1o
C
-1
Question-10
The pairing of nitrogenous bases is such that thymine always pairs with:
(A)
Adenine
(B)
Guanine
(C)
Uracil
(D)
Cytosine
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Cambridge Advanced Grade 11
IGCSE
Practice in Related Chapters
The Molecules of Life
Regulations and Control
DNA and Protein Synthesis
Enzymes
Genetics
Cell
Cell Division
Photosynthesis And Plant Nutrition
Animal Nutrition
Reproduction in Animals
Ecology
Heterotrophic Nutrition
Gas Exchange
Evolution
Transport in Mammals
Transport in Plants
Respiration
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