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Question-1
The sequence of nitrogen basses 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-2
Which protein is present in silk?
(A)
Fibrin
(B)
Collagen
(C)
Keratin
(D)
Fibroin
Question-3
Digestion is a type of reaction called:
(A)
Oxidation
(B)
Reproduction
(C)
Hydrogenation
(D)
Hydrolysis
Question-4
Which of these is an organic alcohol having 3 carbon atoms?
(A)
Glycerol
(B)
Triglyceraldehyde
(C)
Triose
(D)
Acetic acid
Question-5
The uneven distribution of charge on the molecule is referred to as:
(A)
Bipolar group
(B)
Dipole
(C)
Unipole
(D)
Multipole
Question-6
Fructose is a:
1. Component of sucrose
2. Monosaccharide
3. Sugar present in fruits
4. Hexose sugar
(A)
1 and 2
(B)
3 and 4
(C)
1, 2, and 3
(D)
1, 2, 3 and 4
Question-7
The bond between two amino acids is:
(A)
Glycosidic bond
(B)
Hydrogen bond
(C)
Peptide bond
(D)
Disulphide bond
Question-8
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-9
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-10
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
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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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