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.
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?
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.
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 I
Column 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.
Observe the given figure and answer the following questions.
(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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