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Biomolecules NEET Questions and Answers

Update on: 14 Dec 2022, 10:00 AM

biomolecules neet questions

Many important questions are formed in competitive exams like NEET and boards from Class 11 Biology Chapter 9. Biomolecules is the ninth chapter in the Class 11 NEET syllabus for Biology. Below, we have provided Important Questions from Class 11 Biology Chapter 9 Biomolecules for your NEET 2023 preparation. You can check it here for revision purposes.

Latest: Cell the Unit of Life NEET Questions and Answers

Biomolecules Class 11 NEET Questions and Answers

We’ve compiled a list of essential questions about the Biomolecules biology class 11 chapter 9 that you should not miss while studying for your NEET Exams.

Biomolecules MCQ for NEET

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Given molecular formula belongs to which of the following group of biomolecules?

molecular formula
Correct! Wrong!

Which of the following statements is incorrect regarding amino acids?

Correct! Wrong!

Which of the following options consists of aromatic amino acid?

Correct! Wrong!

Select the incorrect match from the following.

Correct! Wrong!

Coenzyme is non-protein organic group which

Correct! Wrong!

Identify the given structural formula and select the correct option.

structural formula
Correct! Wrong!

Read the given statements and select the incorrect option.

Correct! Wrong!

The type of chemical linkage formed between the monosaccharide units of oligosaccharides and polysaccharides is

Correct! Wrong!

Biomolecules Match the Following Questions for NEET

Match column I with column II.

Column IColumn II
A. Insulin (i) Phospholipids
B. Lecithin (ii) Enzym
C. Trypsin (iii) Lectins
D. Concanavalin A(iv) Hormone

A. A-(iv), B-(i), C-(ii), D-(iii)

Biomolecules Assertion and Reason Questions for NEET

In each of the following questions, a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it. Of the statements, pick the correct answer as :

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Assertion : Catabolism is a biosynthetic process. Reason : Catabolism produces simpler molecules from complex ones

Correct! Wrong!

Assertion : Nucleotide is acidic in nature. Reason : Nucleotide is formed by the union of a nitrogen base with a pentose sugar

Correct! Wrong!

Assertion : Sucrose is a non-reducing sugar. Reason : In a sucrose molecule, aldose group of glucose and ketose group of fructose are lost due to formation of glycosidic bond between them in a sucrose molecule.

Correct! Wrong!

Assertion : Chitin is complex polysaccharide found in endoskeleton of arthropods. Reason : Chitin is homopolymer of N-acetyl galactosamines.

Correct! Wrong!

Assertion : Unsaturated fats lower blood cholesterol. Reason : Unsaturated fats have lower melting point.

Correct! Wrong!

Assertion : Fats can be converted to carbohydrates. Reason : Fats are stored in oil seeds.

Correct! Wrong!

Assertion : NAD and NADP are coenzymes. Reason : NAD and NADP contains the vitamin niacin

Correct! Wrong!

Assertion : DNA is negatively charged molecule. Reason : DNA contains ribose sugar.

Correct! Wrong!

Assertion : Enzymes lower the activation energy. Reason : Activation energy decreases the kinetic energy ofthe system.

Correct! Wrong!

Assertion : The substrate binds to the active site of the enzyme. Reason : The binding of substrate induces the enzyme to alter its shape

Correct! Wrong!

Preparing for NEET? Don’t forget to check Chapterwise Important Questions–

The Living World NEET Questions and Answers

Biological Classification NEET Questions and Answers

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Animal Kingdom NEET Questions and Answers

Electrostatics NEET Questions and Answers

Morphology of Flowering Plants NEET Questions and Answers

Anatomy of Flowering Plants NEET Questions and Answers

Structural Organisation in Animals NEET Questions and Answers

Biomolecules Figure-Based Questions for NEET

Observe the given figure and answer the following questions.

Biomolecules Figure-Based Questions for NEET

(a) Identify the labelled parts A, B and C in the given figure.

A. In the given figure of double helical structure of DNA,

A-represents hydrogen bonds,

B-represents glycosidic bond and

C-represents sugar-phosphate backbone

(b) Briefly describe the given figure.

A. The given figure indicates the secondary structure of DNA. One of the secondary structures exhibited by DNA is the famous Watson-Crick model. This model says that DNA exists as a double helix. The two DNA chains are antiparallel. In one chain the direction is 5′ → 3′ while in the opposite is it is 3′ → 5′. The two chains are held together by hydrogen bonds between their bases. Adenine (A), a purine of one chain lies exactly opposite thymine (T), a pyrimidine of the other chain. Similarly, cytosine (C, a pyrimidine) lies opposite guanine (G, a purine). This allows a sort of lock and key arrangement between large-sized purine and small-sized pyrimidine. It is strengthened by the appearance of hydrogen bonds between the two. Three hydrogen bonds occur between cytosine and guanine (C ≡ G) at positions 1 – 1′, 2′ – 6′, and 6′ – 2′. There are two such hydrogen bonds between adenine and thymine (A = T) which are formed at positions 1′ – 3′ and 6′ – 4′. Hydrogen bonds occur between hydrogen of one base and oxygen or nitrogen of the other base.

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