Match column I with column I I and select the correct option from the given codes. Column I Column II (a) Galactose (i) Protein (b) Anticoagulant (ii) Phospholipid (c) Fructose (iii) Brain sugar (d) Lecithin (iv) Heparin (e) Insulin (v) Fruit sugar

a - ( i i i ) , b - ( i v ) , c - ( v ) , d - ( i i ) , e - ( i )

a - ( v ) , b - ( i i i ) , c - ( i i ) , d - ( i ) , e - ( i v )

a - ( v ) , b - ( i i i ) , c - ( i ) , d - ( i v ) . e - ( i i )

a - ( i ) , b - ( i i ) , c - ( i i i ) , d - ( v ) , e - ( i v )

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Earn 100

Refer to the given figure.

Formation of structures $A$ and $B$ could be due to

$A$	$B$
Formation of peptide bonds	Linking together of two or more polypeptides

$A$	$B$
Formation of hydrogen bonds	Linking together of two or more polypeptides

$A$	$B$
Formation of hydrogen bonds	Formation of hydrogen bonds

$A$	$B$
Formation of peptide bonds	Formation of peptide bonds

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Important Questions on Chemical Constituents of Living Cells

HARD

NEET

IMPORTANT

Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 16

Which of the following statements about enzymes are correct?
(i) Enzymes do not alter the overall change in free energy for a reaction.
(ii) Enzymes are proteins whose three dimensional shape is key to their functions.
(iii) Enzymes speed up reactions by lowering activation energy.
(iv) Enzymes are highly specific for reactions.
(v) The energy input needed to start a chemical reaction is called activation energy.

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Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 17

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.

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Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 18

82 - 92 ° C

, the

H

-bonds between nitrogen bases of complementary strands of DNA break to uncoil and separate two strands. This is called

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Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 19

Match column

I

with column

I I

and select the correct option from the given codes.

	Column I		Column II
(a)	Galactose	(i)	Protein
(b)	Anticoagulant	(ii)	Phospholipid
(c)	Fructose	(iii)	Brain sugar
(d)	Lecithin	(iv)	Heparin
(e)	Insulin	(v)	Fruit sugar

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Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 20

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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Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 21

The competitive inhibition of enzymes

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Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 22

Select the option that correctly identifies the chemical bonds present in the given biomolecules.

P o l y s a c c h a r i d e s - A, P r o t e i n s - B, F a t s - C, W a t e r - D

	$A$	$B$	$C$	$D$
(i)	Ester	Peptide	Glycosidic	Hydrogen
(ii)	Glycosidic	Peptide	Ester	Hydrogen
(iii)	Glycosidic	Peptide	Hydrogen	Ester
(iv)	Hydrogen	Ester	Peptide	Glycosidic

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Biology Crash Course NEET>Chapter 9 - Chemical Constituents of Living Cells>Level 3>Q 23

Monosaccharide found in nucleolus is

Refer to the given figure. Formation of structures A and B could be due to

Important Questions on Chemical Constituents of Living Cells

Learn and Prepare for any exam you want !

Refer to the given figure.

Formation of structures $A$ and $B$ could be due to