Class 9 ICSE Chemistry Question Paper. We covered all the Class 9 ICSE Chemistry Question Paper MCQs in this post for free so that you can practice well for the exam.
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Class 9 ICSE Chemistry Objective Question Paper for Students
Enzymes are made up of
(A) Edible proteins
(B) Proteins with a specific structure
(C) Nitrogen-containing carbohydrates
(D) Carbohydrates
Option b – Proteins with a specific structure
Which functional group participates in disulfide bond formation in proteins?
(A) Thiolactone
(B) Thiol
(C) Thioether
(D) Thioester
Option b – Thiol
The cell membranes are mainly composed of
(A) Carbohydrates
(B) Proteins
(C) Phospholipids
(D) Fats
Option c – Phospholipids
The helical structure of a protein is stabilized by
(A) Dipeptide bonds
(B) Hydrogen bonds
(C) Either bonds
(D) Peptide bonds
Option b – Hydrogen bonds
The correct statement with respect to the protein hemoglobin is that it
(A) Functions as a catalyst for biological reactions
(B) Maintains blood sugar levels
(C) Acts as an oxygen carrier in the blood
(D) Forms antibodies and offers resistance to disease
Option c – Acts as an oxygen carrier in the blood
The hormone that helps in the conversion of glucose to glycogen is
(A) Cortisone
(B) Bile acids
(C) Adrenaline
(D) Insulin
Option d – Insulin
A sequence of how many nucleotides in messenger RNA makes a codon for an amino acid?
(A) Three
(B) Four
(C) One
(D) Two
Option b – Four
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