Blog Log in Get Started Free

Biomolecules MCQs for NEET — Chemistry Questions with Answers

Practice free Biomolecules (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology

Language English हिंदी

Chapter Difficulty Show only questions I answered incorrectly Clear Register free for difficulty & keyword filters

● ● ● ● ●

P is responsible for heredity & P is formed by Q and R. So give the name for P, Q and R.

A. P = chromozomes Q = protein R = nucleic acid B. P = chromozomes Q = petrocine R = nucleic acid C. P = nucleicacid Q= chromozomes R = chromozomes D. p = DNA Q = sugar R = adenine

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

Artificial silk is a

A. Polypeptide B. polysaccharide C. polythene D. Polyvinyl Chloride

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

The liner chains in nylon are held together by

A. H-bonds B. Covalent C. Ionic bonds D. vanderwaalâ€™s forces

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

Repeating disaccharide unit of starch is

A. Lactose B. Sucrose C. Maltose D. Cellobiose

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

Hydrolysis of maltose (C₁₂H₂₂O₁₁) by maltase gives:

glucose

fructose

both (a) and (b)

none of these

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(a) C₁₂H₂₂O₁₁ $\overset{Maltase}{\to}$ 2C₆H₁₂O₆

Maltose Glucose

● ● ● ● ●

Which statement about enzymes is not correct?

Enzymes are in colloidal state

Enzymes are catalysts

Enzymes can catalyse any reaction

Urease is an enzyme

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

● ● ● ● ●

Which one of the following statements is incorrect about enzyme catalysis?

Enzymes are mostly proteinous in nature

Enzyme action is specific

Enzymes are denaturated by ultraviolet rays and at high temperature

Enzymes are least reactive at optimum temperature

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

Most of the enzymes have proteinous nature. They are highly specific and get denaturated by high temperature or UV rays. At optimum temperature, which is generally in between 25°-35°C, enzyme activity is maximum.

● ● ● ● ●

Glucose and Mannose are

C₁ epimers

Anomers

C₂ epimers

C₄ epimers

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

D-Mannose is an epimer of D-glucose because the two sugars differ only in the configuration at C-2 .

When a molecule such as glucose converts to a cyclic form, it generates a new chiral centre at C-1 .

Anomers are special cases — they are epimers that differ in configuration only at the anomeric carbon

● ● ● ● ●

Which of the following hormones contains iodine?

Insulin

Testosterone

Adrenaline

Thyroxine

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

Which of the following does not has Sulphur?

A. Thiamine B. Biotin C. Coenzyme A D. Ascorbic Acid

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

Page number-197

12.2.2 Role of Macro and Micronutrients

Mineral Nutrition

Ready to ace NEET?

Free access · No credit card required

Browse All Questions Create Free Account

Frequently Asked Questions

Yes. You can attempt every Biomolecules question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.