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

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

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प्रश्न

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

(I)
(II)
(III)

पर्याय

  • I, II, III

  • II, III

  • I, II

  • III

MCQ
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उत्तर

I, II, III

Explanation:

I, II and III structures have D configuration with –OH group on the lowest asymmetric carbon is on the right side which is comparable to (+) glyceraldehyde.

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पाठ 14: Biomolecules - Multiple Choice Questions (Type - I) [पृष्ठ २०६]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 14 Biomolecules
Multiple Choice Questions (Type - I) | Q 17 | पृष्ठ २०६

संबंधित प्रश्‍न

Differentiate between  the following:

Fibrous proteins and Globular proteins


Write one difference between α-helix and β-pleated structures of proteins.


The protein responsible for blood clotting is ____________.


The helical structure of protein is stabilized by:


The correct statement for protein haemoglobin.


Which functional group participates in disulphide bond formation in proteins?


Which of the following statement is correct:


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


Proteins can be classified into two types on the basis of their molecular shape i.e., fibrous proteins and globular proteins. Examples of globular proteins are:

(i) Insulin

(ii) Keratin

(iii) Albumin

(iv) Myosin


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


α-Helix is a secondary structure of proteins formed by twisting of polypeptide chain into right-handed screw like structures. Which type of interactions are responsible for making the α-helix structure stable?


Which moieties of nucleosides are involved in the formation of phosphodiester linkages present in dinucleotides? What does the word diester in the name of linkage indicate? Which acid is involved in the formation of this linkage?


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.


Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be ______.


Peptide linkage is:


Explain formation of peptide linkage in protein with an example.


Proteins are polymers of ______.


Write a classification of proteins with an example.


Match List I with List II:

List I List II
A. GLUT-4 I. Hormone
B. Insulin II. Enzyme
C. Trypsin III. Intercellular ground substance
D. Collagen IV. Enables glucose transport into cells

Choose the correct answer from the options given below:


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