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NEET Biomolecules PYQs with Solutions

1,038 previous year questions from Biomolecules (NEET UG Chemistry) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

1,038 questionsChemistry2002–2026Answers + solutions

About Biomolecules PYQs

Biomolecules has 1,038 previous year questions in the Quantrex Academy NEET UG Chemistry bank. The 220 questions in this list come from NEET (174), MHT CET Medical (28) and JIPMER (18), spanning 2002 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

NEET Biomolecules PYQs with Solutions

About Biomolecules PYQs

Questions by year (this list)

Biomolecules questions with solutions

What type of sugar is the stachyose?

What is the number of stereo structure of glucose?

Which of the following is having largest size?

Which of the following is non reducing sugar?

Which of the following exists as a zwitter ion ?

Which of the following is a disaccharide ?

Name the polymer in which chains are formed by α -1,4-glycosidic linkages between α -glucose units and branches are formed by α -1,6-glycosidic linkages.

Match List I with List II List I (CARBOHYDRATE) List II (TYPE) (A). Glycogen (I). Oligosaccharide (B). Stachyose (II). Monosaccharide (C). Ribose (III). Polysaccharide Choose the

What is monomer used in cellulose, a straight chain polysaccharide?

Which of the following reagents is used to identify one primary alcoholic group of glucose?

Identify the product formed when glucose is oxidized with concentrated nitric acid

Which from following statements regarding biological importance of elements is NOT true?

What type of following peptides, the glycylalanine is?

Why does fructose reduce Fehling's solution?

What type of compound the Keratin is?

Formation of saccharic acid from glucose by oxidation with dilute HNO_3 , confirms

Identify glycosidic linkage present in maltose.

Which of the following compounds is obtained when glucose is heated with HI for a prolonged ?

Identify the product formed when glucose is treated with dil. HNO_3 .

Which of the following is Zwitter ion of sulphanilic acid?

Identify the structure of alanine when pH is 11 .

Identify the amino acid, NOT having nitrogen atom in a side chain.

Most common secondary structure of protein Myosin in muscle and α -keratin in hair are,

Identify the functional group / groups found in amino acid.

Which of the following statements regarding fats is NOT true?

Identify the name of above nitrogen base.

O_2 gas has very low solubility in water. However, its solubility in blood is excessively high. This is because of

Which from followings is true regarding structure of glucopyranose ?

Identify the correct statements about biomolecules. A. Lipids are generally water soluble. B. Proteins are polypeptides. C. Polysaccharides are long chains of sugars. D. Adenine

The amino acid that gives a red-blood colour on treating its sodium fusion extract with sodium nitroprusside is

The correct statement with regard to the secondary structure of DNA/RNA is :

Which of the following statements are correct regarding amino acids ? A. They are substituted methanes. B. Serine is an aromatic amino acid. C. Valine is a neutral amino acid. D.

Match the vitamins in List I with their sources in List II List I List II A. vitamin A I. meat B. vitamin B _ 12 II. sunflower oil C. vitamin E III. green leafy vegetables D.

The correct statement about peptides and proteins is

Alpha-helix is found in which level of protein structure ?

The following reaction depicts the activity of a particular class of enzymes : Identify the enzyme class 'E' from the following options :

Match List I with List II : List I List II A. Trypsin I. Intercellular ground substance B. Morphine II. Lectin C. Concanavalin A III. Enzyme D. Collagen IV. Alkaloid Choose the

Which one of the following enzymes contains 'Haem' as the prosthetic group?

Match List I with List II: List - I List - II A. Adenosine (i) Nitrogen base B. Adenylic acid (ii) Nucleotide C. Adenine (iii) Nucleoside D. Alanine (iv) Amino acid Choose the

The protein portion of an enzyme is called:

Why can't insulin be given orally to diabetic patients?

Match List - I with List - II -I (Name of the -II (Deficiency Vitamin) array l disease) array A. Vitamin B_ 12 I. Cheilosis B. Vitamin D II. Convulsions C. Vitamin B_2 III.

Sugar 'X' A. is found in honey. B. is a keto sugar. C. exists in α and β - anomeric forms. D. is laevorotatory. ' X ' is :

Name the class of enzyme that usually catalyze the following reaction : S-G+S^ \# arrow ~S+S^ \# -G Where, G arrow a group other than hydrogen S arrow a substrate S^ \# arrow

Given below are two statements : Statement I: Glycogen is similar to amylose in its structure. Statement II : Glycogen is| found in yeast and fungi also. In the light of the above

The reagents with which glucose does not react to give the corresponding tests/products are A. Tollen's reagent B. Schiff's reagent C. HCN D. NH_2 OH E. NaHSO_3 Choose the correct

Cheilosis occurs due to deficiency of

Given below are two statements : Statement I: A unit formed by the attachment of a base to 1 ^ ' position of sugar is known as nucleoside Statement II: When nucleoside is linked

The incorrect statement about denaturation of proteins is

The incorrect statement regarding enzymes is:

The RBC deficiency is deficiency disease of:

The reaction of concentrated sulphuric acid with carbohydrates ( C _ 12 H _ 22 O _ 11 ) is an example of

Deficiency of which vitamin causes osteomalacia?

Which of the following statement is not true about glucose?

Sucrose on hydrolysis gives

Which of the following is a basic amino acid?

Which of the following act as epimeric pair?

Invert sugar is mixture of

Which structure(s) of proteins remains(s) intact during denaturation process?

The non-essential amino acid among the following is:

Which one of the following represents the correct structure of cellulose?

Which of the following compounds can form a zwitter ion?

What is the difference between amylose and amylopectin?

On hydrolysis of starch, we finally get

Which of the following statements is not correct?

Sugars are seperated by using the solvent BAW ( n -butanol acetic acid -H_2 O ) and detected by spraying the plate with

Which one of the following compounds shows the presence of intramolecular hydrogen bond?

The central dogma of molecular genetics states that the genetic information flows from:

The correct corresponding order of names of four aldoses with configuration given below respectively, is

In a protein molecule various amino acids are linked together by:

The correct statement regarding RNA and DNA, respectively is:

Which one given below is a non-reducing sugar?

In an amino acid, the carboxyl group ionises at p K_ a_1 =2.34 and ammonium ion at p K_ a_2 =9.60 . The isoelectric point of the amino acid is at pH

What percentage of β -D-(+)-glucopyranose is found at equilibrium in the aqueous solution?

In DNA, the complimentary bases are

D ( + ) glucose reacts with hydroxyl amine and yield an oxime. The structure of the oxime would be: