Match List - I with List- II. Column-I Column-II (a) Protein (i) C = C double bonds (b) Unsaturated fatty acid (ii) Phosphodiester bonds (c) Nucleic acid (iii) Glycosidic bonds (d) Polysaccharide (iv) Peptide bonds Choose the correct answer from options given below.

( a ) - ( iv ) ; ( b ) - ( i ) ; ( c ) - ( ii ) ; ( d ) - ( iii )

( a ) - ( i ) ; ( b ) - ( iv ) ; ( c ) - ( iii ) ; ( d ) - ( ii )

( a ) - ( ii ) ; ( b ) - ( i ) ; ( c ) - ( iv ) ; ( d ) - ( iii )

( a ) - ( iv ) ; ( b ) - ( iii ) ; ( c ) - ( i ) ; ( d ) - ( ii )

Match List- I with List- II List- I (Biological Molecules) List- II (Biological functions) (a) Glycogen (i) Hormone (b) Globulin (ii) Biocatalyst (c) Steroids (iii) Antibody (d) Thrombin (iv) Storage product Choose the correct answer from the options given below:

(a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)

(a) - (iv), (b) - (ii), (c) - (i), (d) - (iii)

(a) - (ii), (b) - (iv), (c) - (iii), (ii) - (i)

(a) - (iii), (b) - (ii), (c) - (iv), (d) - (i)

Both Essential fatty acid and Polyunsaturated fatty acid

Both in cells and extracellular fluids diabasic phosphate (HPO 4 ) and monobasic phosphate (H 2 PO - 4 ) act as acid-base buffers to maintain

H + concentration of cellular fluid

K + concentration of extracellular fluid

Na + concentration of extracellular fluid

Na + concentration of cellular fluid

EASY

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Living cell contains $60 - 75 %$ water. Water present in human body is

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Important Questions on Chemical Constituents of Living Cells

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Study the given statements and select the correct option?
(i) Carbohydrates, proteins, nucleic acids and lipids are primary metabolites
(ii) Alkaloids, flavonoids, rubber etc; are secondary metabolites
(iii) Linoleic, linolenic and palmitic acids are the three essential fatty acids

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Which one of the following molecules is a secondary metabolite?

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Match List - I with List- II.

Column-I		Column-II
(a)	Protein	(i)	$C = C$ double bonds
(b)	Unsaturated fatty acid	(ii)	Phosphodiester bonds
(c)	Nucleic acid	(iii)	Glycosidic bonds
(d)	Polysaccharide	(iv)	Peptide bonds

Choose the correct answer from options given below.

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Secondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Which one of the following pairs of molecules never forms a hydrogen bond between them?

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Match List-

I

with List-

II

List- $I$ (Biological Molecules)		List- $II$ (Biological functions)
(a)	Glycogen	(i)	Hormone
(b)	Globulin	(ii)	Biocatalyst
(c)	Steroids	(iii)	Antibody
(d)	Thrombin	(iv)	Storage product

Choose the correct answer from the options given below:

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Identify the incorrect pair.

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Concanavalin A is:

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Which of the following is not polymeric?

HARD

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

It is much easier for a small animal to run uphill than for a large animal, because:

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Which of the following are not secondary metabolites in plants?

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Arachidonic acid is

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

The relative abundance of ____ and ____ is higher in living organisms as compared to earth’s crust.

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

During the elemental analysis of tissue, if the tissue is fully burnt, all the carbon compounds are oxidised to gaseous form and the remaining is called ash. This ash contains which of the following?

HARD

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Select the correct match regarding the composition of human body,

(a) Hydrogen - 3.3%

(b) Carbon - 65%

(d) Calcium - 1.5%

HARD

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Both in cells and extracellular fluids diabasic phosphate (HPO₄) and monobasic phosphate (H₂PO^-₄) act as acid-base buffers to maintain

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Lipids appear in acid-insoluble fraction during analysis of chemical composition of tissues because of-

MEDIUM

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

The most abundant intracellular cation is

EASY

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Biological molecules are primarily joined by

HARD

Biology>Cell : Structure and Functions>Chemical Constituents of Living Cells>Biomolecules

Match the biological molecule listed under column I with their biological function listed under column II. Choose the answer which gives the correct combination of alphabets of the two columns.

Column – I (Biological Molecule)	Column – II (Function)
A. Glycogen	1. Hormone
B. Globulin	2. Biocatalyst
C. Steroid	3. Antibody
D. Thrombin	4. Storage product

Living cell contains 60-75% water. Water present in human body is

Important Questions on Chemical Constituents of Living Cells

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Living cell contains $60 - 75 %$ water. Water present in human body is