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Chapter:

30+ Biomolecules-1 Solved MCQs

in Biology

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: All India Pre Medical Test (AIPMT) .

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Chapter: Biomolecules-1
1.

Match the terms in columns – I with suitable terms in column – II :
Column – I Column – II
P, Glucose i (c6 H10O5)n
Q, Maltose ii R-COOH
R , Glycogen iii (CH2O)n=m
S , Fatty acids iv Cn(H2O)n-1

A. P iv Q i R iii S ii
B. P iv Q iii R i S ii
C. P iii Q iv R ii S i
D. P iii Q iii R i S ii
Answer» D. P iii Q iii R i S ii
discuss
2.

Match the terms in column-I with suitable terms in column-II
Column – I Column – II
P C6H10O5
i Glyceraldehyde Q C3H6O3
ii Galactose R C5H10O4
iii Ribulose S C6H12O6
iv Deoxy ribose sugar

A. P i Q iii R ii S iv
B. P iv Q iii R ii S i
C. P iii Q i R iv S ii
D. P i Q iii R ii S iv
Answer» C. P iii Q i R iv S ii
discuss
3.

Match the terms in column-I with suitable terms in column-II.
Column – I Column – II
P Butyric acid i Long chain Unsaturated fatty acid
Q Stearic acid ii Short chain Unsaturated fatty acid
R Oleic acid iii Short chain Saturated fatty acid
S Crotonic acid iv Long chain Saturated fatty acid

A. P iii Q iv R i S ii
B. P iii Q i R iv S ii
C. P iv Q iii R i S ii
D. P iv Q iii R ii S I
Answer» A. P iii Q iv R i S ii
discuss
4.

Match the terms in column-I with suitable terms in column-II.
Column – I Column – II
P Glucose i Stored food in plants
Q ellulose ii Reserve food in animals
R Starch iii The plant cell wall
S Glycogen iv Most widely used in respiration

A. P iv Q iii R ii S i
B. P iv Q iii R i S ii
C. P iii Q i R iv S ii
D. P iii Q iv R ii S i
Answer» B. P iv Q iii R i S ii
discuss
5.

Match the terms in column-I with suitable terms in column-II.
Column – I Column – II
P Glycosidic bond i Triglycerides
Q Ester bond ii Dinucleotide
R Peptide bond iii Disaccharide
S Phosphodiester bond iv Dipeptide

A. P i Q iii R ii S iv
B. P iii Q iv R i S ii
C. P iii Q i R iv S ii
D. P ii Q iv R iv S iii
Answer» C. P iii Q i R iv S ii
discuss
6.

Match the terms in column-I with suitable terms in column-II
Column – I Column – II
P PGAL i The plant cell wall
Q Oleic acid ii Plasma membrane and membrane of organiles.
R Glycerol iii Unsaturated fatty acid
S Phospholipid iv Phosphate aldotriose sugar
T Cellulose v Trihydroxy alcohol

A. P v Q iv R i S ii T iii
B. P iv Q v R ii S i T iii
C. P iii Q iv R ii S v T i
D. P iv Q iii R v S ii T i
Answer» D. P iv Q iii R v S ii T i
discuss
7.

Which of the following statement regarding to properties of starch is not correct?

A. Present of amylose and amylopectin chains.
B. Stored food in plants.
C. Soluble in water.
D. Not sweet.
Answer» C. Soluble in water.
discuss
8.

Which one of the following pairs is not correctly matched?

A. Triose sugarGlyceraldehyde Aldo sugar.
B. Pentose sugar Ribulose Keto sugar.
C. Hexoses sugarFructose Aldo sugar.
D. Triose sugar Dihydroxy acetose Keto sugar.
Answer» C. Hexoses sugarFructose Aldo sugar.
discuss
9.

Which the folowing pair regarding to biological importance of carbohydrates is not correctly matched?

A. CelluloseForms the plant cell wall.
B. Glycogen Reserve food in animals.
C. Ribose sugarStructural components of ATP.
D. GalactoseThe most widely used in respiration.
Answer» D. GalactoseThe most widely used in respiration.
discuss
10.

Which the following regarding to examples of Keto sugar is not correctly?

A. Fructose
B. Ribulose
C. Ribose sugar
D. Dihydroxy acetose.
Answer» C. Ribose sugar
discuss
11.

Which of the following pairs is not correctly matched?

A. Butter – Glycerol + 3 Fatty acids.
B. Waxes – Monohydroxy alcohol + 1 Fatty acid.
C. Cortisone – Present of –COOH or >C=O group.
D. Glycolipid – Glycerol + Lipid.
Answer» D. Glycolipid – Glycerol + Lipid.
discuss
12.

Which of the following option is not correctly for this molecule?

A. It is Keto hexoses sugar.
B. Hydrolysis of a molecule of maltose
C. It can pass through the cell membarane
D. Found in the juice of fruits.
Answer» B. Hydrolysis of a molecule of maltose
discuss
13.

- C - OH

A. Palmitic acid
B. Stearic acid
C. Glycerol
D. Galactose
Answer» A. Palmitic acid
discuss
14.

Which one of the following pairs is not correctly matched?

A. Triose sugar – DHAP.
B. Starch – amylase and amyloprectin.
C. Phospholipid – plasma membarane.
D. Cortisone – sterols.
Answer» D. Cortisone – sterols.
discuss
15.

Which one of the following pairs is correctly matched?

A. Fats Long saturated Fatty acidss chain.
B. Derivatives of Lipid Vitamins A, D, E.
C. Deoxyribose RNA.
D. Glycogen Forms the plant cell wall.
Answer» A. Fats Long saturated Fatty acidss chain.
discuss
16.

Lipids are relatively insoluble in….

A. Chloroform
B. Water
C. Benzene
D. Ether.
Answer» B. Water
discuss
17.

Which of the following statement regarding the Fatty acid is not correct?

A. Unsaturated fatty acids are two successive carbon atoms at certain places therein are linked by a double bond.
B. Saturated fatty acids are capable of accepting hydrogen or halogen atoms.
C. Butyric acid and palmitic acids are Saturated fatty acids
D. Crotonic acid and oleic acid are Unsaturated fatty acids.
Answer» B. Saturated fatty acids are capable of accepting hydrogen or halogen atoms.
discuss
18.

Which of the following statement regarding to Lipid is not correct?

A. Lipids are of three types i Simple ii Complex iii Steroids
B. The lipids are a heterogenous group of compounds related to Fatty acids.
C. Lipids are the important constituents of the diet because of their high energy value.
D. Lipids are formed of C, H and O atoms, The number of H atom is less than ahat of O.
Answer» D. Lipids are formed of C, H and O atoms, The number of H atom is less than ahat of O.
discuss
19.

Which of the following statement regarding to Amylase is not correct?

A. Unbranched polysaccharide chains made up of glucose units.
B. Amylase occur in the constitution of glycogen.
C. Amylase occur in more amount in starch.
D. None of these.
Answer» B. Amylase occur in the constitution of glycogen.
discuss
20.

Which of the following statements are true?
P : Those which have molecular weights 596 Dalton are called micromolecules.
Q: Those which have molecular weights 1288 Dalton are called macromolecules.
R: Lipids have molecular weight more than ten thousand Dalton and above.
S: Biomolecules are of three types (i) micromolecules (ii) simply biomolecules and (iii) macromolecules.

A. P and Q
B. P, Q and R
C. R and S
D. Q and S.
Answer» B. P, Q and R
discuss
21.

In the formation of triglyceride, glycerol get linked with any Fatty acids by…

A. –NH2
B. –COOH
C. –CHO
D. >C=O
Answer» B. –COOH
discuss
22.

Find out the wrongly matched pair[Kerala PMT 010]

A. Primary metabolite - Ribose.
B. Secondary metabolite - Insulin.
C. Protein - Insulin.
D. Cellulose - Heteropolymer.
Answer» D. Cellulose - Heteropolymer.
discuss
23.

Chitin is a…… [WB JEE 2010]

A. Polysaccharide
B. Nitrogenous polysaccharide
C. Lipoprotein
D. Protein
Answer» B. Nitrogenous polysaccharide
discuss
24.

In a polysaccharide, the individual monosaccharides are linked by a...... [AMU( Med) 2011, Kerala PMT 2011]

A. Glycosidic bond
B. Peptide bond
C. Ester bond
D. Phosphodiester bond
Answer» A. Glycosidic bond
discuss
25.

Match the items in column-I with items in column-II and the correct answer.
[Kerala PMT 2006]
Column – I Column – II
P Triglyceride Animal hormones
Q Membrane lipid ii Feathers and leaves
R Steroid iii Phospholipids
S Wax iv Fat stored in the form of droplets.

A. P iv Q iii R i S ii
B. P iv Q i R iii S ii
C. P iii Q iv R i S ii
D. P iv Q i R ii S iii
Answer» A. P iv Q iii R i S ii
discuss
26.

Find out the correct combination …. [GSEB 2011]
i) Triose sugar – Ribose.
ii) Starch – amylase and amylopectin
iii) Plasma membarane – phospholipid
iv) Malanin – sterols
v) Pitutary hormones – peptide.

A. Only ii, iii and iv
B. Only I, ii and iii
C. Only I and iii
D. Only ii, iii and v
Answer» D. Only ii, iii and v
discuss
27.

Generally protein and carbohydarte components are found in cow milk… [KCET 2005]

A. Albumin, Lactose
B. Globulin, Casin
C. Casin, Lactose
D. Casin, Fructose
Answer» C. Casin, Lactose
discuss
28.

Starch and Cellulose are the compounds made up to many units of…… [CPMT 1988, 89, 93, 2009]

A. Simple sugar
B. Fatty acid
C. Glycerol
D. Amino acid
Answer» A. Simple sugar
discuss
29.

Which of the following is the characteristic of plants… [MP PMT 2003]

A. Glucose and Cellulose
B. Pyruvic acid and Glucose
C. Cellulose and Starch
D. Starch snd Pyruvic acid
Answer» C. Cellulose and Starch
discuss
30.

Most common monomer of Carbohydrate is…… [Orissa JEE 2008]

A. Glucose
B. Fructose
C. Sucrose
D. Maltose
Answer» A. Glucose
discuss
31.

Lipids are insoluble in water because lipid molecules are…… [CBSE PMT 2002]

A. Neutral
B. Zwitter ions
C. Hydrophobic
D. Hydrophillic
Answer» B. Zwitter ions
discuss
32.

Which of the following is not a disaccharide? [D PMT 2007]

A. Maltose
B. Starch
C. Sucrose
D. Lactose
Answer» B. Starch
discuss
33.

The repeating unit of Glycogen is…… [WB JEE 209]

A. Fructose
B. Mannose
C. Glucose
D. Galactose
Answer» B. Mannose
discuss
34.

Maltose are insoluble in…… [PMT 2000]

A. Water
B. Alcohol
C. Acid
D. Basic
Answer» C. Acid
discuss
35.

Which is an organic component found in most cells? [DPMT 2009]

A. Glucose
B. Lignin
C. Sodium chloride
D. Oxygen
Answer» A. Glucose
discuss

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