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Question-1
Which statement is NOT true about glyceraldehyde?
(A)
It has the chemical formula C
3
H
6
O
3.
(B)
It is a trisaccharide.
(C)
It is an intermediate of respiration and photosynthesis.
(D)
It is a carbohydrate.
Question-2
What is NOT true about glucose?
(A)
Main fuel of our body
(B)
Our blood sugar
(C)
Stored form of carbohydrate
(D)
Building blocks of larger carbohydrates
Question-3
Which statement is NOT true for a hydrolysis reaction?
(A)
'Hydro' means water and 'lysis' means splitting
(B)
Digestion involves hydrolysis
(C)
This reaction produces hydrogen and a hydrolysis group
(D)
All chemical reactions are hydrolysis reactions.
Question-4
Amino acids are amphoteric because they have:
(A)
Only acidic property
(B)
Only basic property
(C)
Both acidic and basic property
(D)
No acidic or basic properties
Question-5
Hair is made up of the protein:
(A)
Keratin
(B)
Globin
(C)
Thyroxine
(D)
Fibroin
Question-6
How is glucose similar to water in its dipole nature?
(A)
It has H
2
and O
2
molecules
(B)
Glucose is soluble in water
(C)
Both have the same density
(D)
Oxygen atom attract electrons which are shared with the hydrogen atoms more strongly.
Question-7
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-8
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-9
Which is true?
(A)
Blood and water have same viscosity.
(B)
Water and ethanol have same viscosity.
(C)
Water is less viscous than ethanol .
(D)
Blood is less viscous than water.
Question-10
Select the correct statement.
(A)
Heat and temperature are forms of energy.
(B)
Heat is a kind of energy where as temperature is a measure of kinetic energy.
(C)
Both are kinetic movement but in different units.
(D)
Heat is the kinetic movement and temperature is a kind of energy
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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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