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The correct order of chemical composition of living tissues/cells in terms of percentage of the total cellular mass is

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Important Questions on Biomolecules

EASY
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 40
Match column I with column II and select the correct combination from the options given.
  Column I 
(Component)		   Column II 
(% of the total cellular mass)
(a) Ions (i) 1
(b) Lipids (ii) 2
(c) Carbohydrates (iii) 3
(d) Nucleic acids (iv) 5-7
(e) Proteins (v) 10-15
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 41
Match column I with column II and select the correct option from the given codes.
  Column I   Column II
(a) GLUT-4 (i) Intercellular ground substance
(b) Antibody (ii) Enzyme
(c) Collagen (iii) Hormone
(d) Trypsin (iv) Fights infection agents
(e) Insulin (v) Enables glucose transport in cells
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 42
_____ is the most abundant protein in the animal world and _____ is the most abundant protein in the whole biosphere.
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 43
What will be the molecular formula of a polypeptide consisting of 10 glycine molecules when the formula of glycine is C2H5O2N ?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 44
Read the given statement and select the option that correctly identifies X and Y .
In a glycogen molecule, successive glucose units are joined together by X and branches are linked together by Y .
  X Y
(i) 1,4-α- glycosidic bonds 1,4-α- glycosidic acids
(ii) 1,4-α- glycosidic bonds 1,6-α- glycosidic bonds
(iii) 1,6-α- glycosidic acids 1,4-α- glycosidic acids
(iv) 1,6-α- glycosidic acids 1,6-α- glycosidic acids
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 45
The polysaccharides made up of glucose monomers are
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 46
Study the given statements and select the correct answer.
(i) Cellulose is a homopolymer of glucose.
(ii) Inulin is a homopolymer of fructose.
(iii) Starch gives blue colour and glycogen gives a red colour with iodine solution.
(iv) Cellulose gives no colour with iodine solution.
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 9 - Biomolecules>MCQS CORNER>Q 47
Read the given statements and select the correct option.
(i) Right end of a polysaccharide chain is called reducing end while the left end is called non-reducing end.
(ii) Starch can hold iodine molecules in its helical secondary structure but cellulose being non-helical, cannot hold iodine.
(iii) Starch and glycogen are branched molecules.
(iv) Starch and glycogen are the reserve food materials of plants and animals, respectively.