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Question-1
Select the polysaccharides present in plants.
(A)
Glycogen and starch
(B)
Starch and cellulose
(C)
Glucose and sucrose
(D)
Sucrose and starch
Question-2
We should include iodine in our diet since:
(A)
Iodine strengthens our bones
(B)
Iodine helps in digestion
(C)
Iodine is necessary for the production of thyroxine
(D)
Iodine is necessary for the production of all hormones
Question-3
A molecule similar to water without dipole and hydrogen bonding is:
(A)
CaCO
3
(B)
H
2
S
(C)
H
2
SO
4
(D)
DHO
3
Question-4
Milk sugar lactose is made up of :
(A)
Glucose and fructose
(B)
2 glucose molecules
(C)
2 fructose molecules
(D)
Glucose and galactose
Question-5
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-6
Name the protein in the hair.
(A)
Keratin
(B)
Globin
(C)
Melanin
(D)
Fibroin
Question-7
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-8
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-9
Which of these is an organic alcohol having 3 carbon atoms?
(A)
Glycerol
(B)
Triglyceraldehyde
(C)
Triose
(D)
Acetic acid
Question-10
Match the following.
1. C = O A. Carboxyl group
2. C H O B. Keto group
3. COOH C. Aldehydegroup
(A)
1 - B, 2 - C, 3 - A
(B)
1 - A, 2 - B, 3 - C
(C)
1 - C, 2 - B, 3 - C
(D)
1 - B, 2 - C, 3 - A
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Cambridge Advanced Grade 12
IGCSE
Practice in Related Chapters
Transport in Plants
Regulations and Control
DNA and Protein Synthesis
The Molecules of Life
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Enzymes
Genetics
Cell
Cell Division
Ecology
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Reproduction in Animals
Gas Exchange
Evolution
Transport in Mammals
Respiration
Heterotrophic Nutrition
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