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Previous year question hub

Biomolecules - Organic Chemistry - Chemistry Previous Year Questions

Practice Biomolecules - Organic Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

11Papers
6Years
33Questions
1Topics

Biomolecules question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Biomolecules. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 33 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 33 100%

Subject weightage

Top subjects by unique question coverage.

Chemistry
33 Qs

Most asked topics

Top topics across the included previous year papers.

Organic Chemistry
33 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Biomolecules
33 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

COMEDK 2025 EVENING SHIFT
3 Qs
COMEDK 2025 Morning Shift
3 Qs
COMEDK 2025 AFTERNOON SHIFT
2 Qs
COMEDK 2024 AFTERNOON SHIFT
3 Qs
COMEDK 2024 EVENING SHIFT
3 Qs
COMEDK 2024 MORNING SHIFT
3 Qs
COMEDK 2023 Morning Shift
3 Qs
COMEDK 2023 EVENING SHIFT
2 Qs
COMEDK 2022
5 Qs
COMEDK 2021
5 Qs
COMEDK 2020
1 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
COMEDK 2025 AFTERNOON SHIFT20252View paper
COMEDK 2025 EVENING SHIFT20253View paper
COMEDK 2025 Morning Shift20253View paper
COMEDK 2024 AFTERNOON SHIFT20243View paper
COMEDK 2024 EVENING SHIFT20243View paper
COMEDK 2024 MORNING SHIFT20243View paper
COMEDK 2023 EVENING SHIFT20232View paper
COMEDK 2023 Morning Shift20233View paper
COMEDK 202220225View paper
COMEDK 202120215View paper
COMEDK 202020201View paper

All Biomolecules previous year questions

Practice every matching question in batches of 20, with every available option.

1
2020 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2020

The amino acid which is not optically active is

A
glycine
B
alanine
C
serine
D
lactic acid
Open complete paper
2
2021 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2021

Which one of the following sets of monosaccharides forms sucrose?

A
\(\alpha\)-D-galactopyranose and \(\alpha\)-D-glucopyranose
B
\(\alpha\)-D-glucopyranose and \(\beta\)-D-fructofuranose
C
\(\beta\)-D-glucopyranose and \(\alpha\)-D-fructofuranose
D
\(\alpha\)-D-glucopyranose and \(\beta\)-D-fructopyranose
Open complete paper
3
2021 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2021

Xerophthalmia disease causes by which deficiency of vitamin?

A
Vitamin-A
B
Vitamin-C
C
Vitamin-B
D
Vitamin-B\(_6\)
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4
2021 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2021

Which of the following amino acid (NH\(_2\)CHRCOOH) contains polar R group?

A
Alanine
B
Valine
C
Glycine
D
Glutamine
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5
2021 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2021

Among the following enzymes, which one is involved in the given below catalytic reaction?

$${C_6}{H_{12}}{O_6}(aq) \to 2{C_2}{H_5}OH(aq) + 2C{O_2}(g)$$

A
Maltase
B
Urease
C
Zymase
D
Invertase
Open complete paper
6
2021 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2021

Carbon monoxide is poisonous to human beings because

A
it binds 300 times more strongly to haemoglobin than oxygen.
B
it doesn't bind to haemoglobin
C
it forms cyanide in body
D
it leads to coagulation of blood
Open complete paper
7
2022 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2022

The monosaccharides of maltose is

A
\(\alpha\)-D-glucose and \(\alpha\)-D-glucose
B
\(\beta\)-D-glucose and \(\alpha\)-D-glucose
C
\(\alpha\)-D-glucose and \(\alpha\)-D-fructose
D
\(\alpha\)-D-glucose and \(\beta\)-D-fructose
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8
2022 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2022

The essential amino acids are

(i) Leucine (ii) Glutamic acid (iii) Asparagine (iv) Valine

correct option is

A
(i), (ii)
B
(ii), (iii)
C
(iii), (iv)
D
(i), (iv)
Open complete paper
9
2022 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2022

What is the function platelets?

A
IT binds to oxygen
B
It binds to carbon dioxide
C
It forms cyanide in body
D
It leads to coagulation of blood
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10
2022 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2022

On treatment of glucose with bromine water the product formed is

A
saccharic acid
B
gluconic acid
C
glutamic acid
D
acetic acid
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11
2022 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2022

Which of the following vitamin is responsible for Beri-Beri disease?

A
A
B
B\(_1\)
C
K
D
D
Open complete paper
12
2023 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2023 EVENING SHIFT

Choose the incorrect statement regarding Cellulose.

A
It does not reduce Fehling's solution nor Tollen's reagent.
B
On heating with dil. \(\mathrm{H}_2 \mathrm{SO}_4\) under pressure, Cellulose gets hydrolysed to D-Glucose.
C
It is a straight chain polysaccharide made of \(\beta-\mathrm{D}\)-glucose units.
D
The \(\beta\)-glycosidic linkages are between \(\mathrm{C_1}\) of one Glucose unit and \(\mathrm{C_5}\) of the next Glucose unit.
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13
2023 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2023 EVENING SHIFT

One among the 4 Vitamins belonging to \(\mathrm{B}\) Complex, can be stored in our body. Identify the Vitamin.

A
Pyridoxine
B
Thiamine
C
Cyanocobalamin
D
Riboflavin
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14
2024 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2024 AFTERNOON SHIFT

With reference to vitamins and its deficiency diseases, the correct statements are:

(i) Cheilosis is due to the deficiency of Riboflavin

(ii) The deficiency of Vitamin B6 causes pernicious anaemia

(iii) Osteomalacia is due to the deficiency of Vitamin E

(iv) The deficiency of ascorbic acid causes scurvy

(v) The deficiency of Vitamin A causes xerophthalmia

A
\(\text { (i), (iii) and (v) }\)
B
\(\text { (i), (ii) and (iv) }\)
C
\(\text { (i), (iv) and (v) }\)
D
\(\text { (ii), (iii) and (v) }\)
Open complete paper
15
2024 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2024 AFTERNOON SHIFT

Among the following peptides, identify the pair where the name and its structure are correctly matched.

A
COMEDK 2024 Afternoon Shift Chemistry - Biomolecules Question 18 English Option 1
B
COMEDK 2024 Afternoon Shift Chemistry - Biomolecules Question 18 English Option 2
C
COMEDK 2024 Afternoon Shift Chemistry - Biomolecules Question 18 English Option 3
D
COMEDK 2024 Afternoon Shift Chemistry - Biomolecules Question 18 English Option 4
Open complete paper
16
2024 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2024 AFTERNOON SHIFT

Which of the following statement is not true about glucose?

A
Glucose does not give Schiff's reagent test
B
Glucose on reaction with \(\mathrm{HI}\) and red \(\mathrm{P}\) at \(373 \mathrm{~K}\) gives a mixture of cyclohexane and 1-iodohexane
C
Both \(\alpha\)-D-glucose and \(\beta\)-D-glucose undergo mutarotation in aqueous solutions
D
Glucose reacts with hydroxylamine to form an oxime
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17
2024 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2024 EVENING SHIFT

Match the Vitamins given in Column I with the diseases caused by their deficiency as given in Column II.

Vitamin Deficiency
(A) K (P) Cheilosis
(B) B\(_12\) (Q) Osteomalacia
(C) B\(_2\) (R) Permicious Anaemia
(D) D (S) Haemophilia
A
\(A-S \quad B-R \quad C-P \quad D-Q\)
B
\(A-Q \quad B-P \quad C-S \quad D-R\)
C
\(\mathrm{A}-\mathrm{S} \quad \mathrm{B}-\mathrm{R} \quad \mathrm{C}-\mathrm{Q} \quad \mathrm{D}-\mathrm{P}\)
D
\(\mathrm{A}-\mathrm{P} \quad \mathrm{B}-\mathrm{S} \quad \mathrm{C}-\mathrm{Q} \quad \mathrm{D}-\mathrm{R}\)
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18
2024 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2024 EVENING SHIFT

Two statements, Assertion and Reason are given. Choose the correct option from the following.

Assertion: In the secondary structure of RNA, double helix structure is formed.

Reason: In the double structure of RNA, two nucleic acid chains are wound about each other and held together by hydrogen bonds between pairs of bases

A
Assertion is correct but Reason is incorrect.
B
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
C
Assertion is incorrect but Reason is correct.
D
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
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19
2024 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2024 EVENING SHIFT

Given are 4 statements related to the chemical properties of Glucose.

Identify the two incorrect statements from the following.

A. It reacts with \(\mathrm{Br}_2\) (aq) to form Saccharic acid.

B. Reacts with Acetic anhydride to form Glucose tetraacetate.

C. Reacts with Hydroxylamine to give Glucose oxime.

D. It reacts with ammoniacal \(\mathrm{AgNO}_3\) to form ammonium salt of Gluconic acid with deposition of silver.

A
A & B
B
C & D
C
B & D
D
A & C
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20
2024 · Chemistry · Organic Chemistry · Biomolecules
COMEDK 2024 MORNING SHIFT

Given below are 4 statements about Insulin. Which of these statement/(s) is/are correct?

[A] Insulin is a globular protein consisting of 51 Amino acids.

[B] Insulin is constituted of 3 polypeptide chains linked together.

[C] Insulin is constituted of 2 polypeptide chains linked together by disulphide bonds.

[D] The 3 polypeptide chains in Insulin are linked together by Hydrogen bonding.

A
[D]
B
[A] & [C]
C
[B] & [D]
D
[B]
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Showing 20 of 33 questions