हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: β-glycosidic linkage is present in maltose, Reason: Maltose is composed of two glucose units in which C–1 of one glucose unit is linked to C–4 of another glucose unit.

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प्रश्न

Assertion: β-glycosidic linkage is present in maltose,

Reason: Maltose is composed of two glucose units in which C–1 of one glucose unit is linked to C–4 of another glucose unit.

विकल्प

  • Assertion and reason both are correct statements and reason explains the assertion.

  • Both assertion and reason are wrong statements.

  • Assertion is correct statement and reason is wrong statement.

  • Assertion is wrong statement and reason is correct statement.

  • Assertion and reason both are correct statements but reason does not explain assertion.

MCQ
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उत्तर

Assertion is wrong statement and reason is correct statement.

Explanation:

α-glycosidic linkage is present in maltose.


                                            Maltose

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अध्याय 14: Biomolecules - Multiple Choice Questions (Type - I) [पृष्ठ २१२]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 14 Biomolecules
Multiple Choice Questions (Type - I) | Q 62 | पृष्ठ २१२

संबंधित प्रश्न

Discuss the optical activity of lactic acid.


What type of bonding helps in stabilising the α-helix structure of proteins?


Differentiate between  the following:

Fibrous proteins and Globular proteins


The protein responsible for blood clotting is ____________.


The helical structure of protein is stabilized by:


The correct statement for protein haemoglobin.


Dinucleotide is obtained by joining two nucleotides together by phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are these linkages present?


Optical rotations of some compounds along with their structures are given below which of them have D configuration.

(I)
(II)
(III)

In fibrous proteins, polypeptide chains are held together by:

(i) van der Waals forces

(ii) disulphide linkage

(iii) electrostatic forces of attraction

(iv) hydrogen bonds


Which of the following are purine bases?

(i) Guanine

(ii) Adenine

(iii) Thymine

(iv) Uracil


Protein found in a biological system with a unique three-dimensional structure and biological activity is called a native protein. When a protein in its native form, is subjected to a physical change like change in temperature or a chemical change like, change in pH, denaturation of protein takes place. Explain the cause.


Explain the terms primary and secondary structure of proteins. What is the difference between α-helix and β-pleated sheet structure of proteins?


Explain formation of peptide linkage in protein with an example.


Out of the following, which type of interaction is responsible for the stabilisation of the α-helix structure of proteins?


Write a classification of proteins with an example.


Statement I: A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (Nterminal).

Statement II: Adult human haemoglobin, consists of 4 subunits (two subunits of a type and two subunits β type.)

In the light of the above statements, choose the correct answer from the options given below:


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