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

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 - Chemistry

Advertisements
Advertisements

प्रश्न

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.

टीपा लिहा
Advertisements

उत्तर

Due to physical or chemical change, hydrogen bonding and various other attractive forces are disturbed, globules unfold and helix gets uncoiled to form a thread like molecule. Therefore, secondary and tertiary structure of protein loses all or part of their biological activity. This is called denaturation of proteins.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 14: Biomolecules - Multiple Choice Questions (Type - I) [पृष्ठ २११]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 14 Biomolecules
Multiple Choice Questions (Type - I) | Q 48 | पृष्ठ २११

संबंधित प्रश्‍न

How is tripeptide formed?


Discuss the optical activity of lactic acid.


Define the following as related to proteins:

Peptide linkage


What are the common types of secondary structure of proteins?


Differentiate between  the following:

Fibrous proteins and Globular proteins


Differentiate between the following :

Peptide linkage and Glycosidic linkage 


Which of the following biomolecules is insoluble in water?


Which functional group participates in disulphide bond formation in proteins?


Proteins are found to have two different types of secondary structures viz. α-helix and β-pleated sheet structure. α-helix structure of protein is stabilised by:


Which of the following are purine bases?

(i) Guanine

(ii) Adenine

(iii) Thymine

(iv) Uracil


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.


The main structural feature of proteins is


Peptide linkage is:


Presence of disulphide link gives rise to which structure of protein?


The total number of negative charge in the tetrapeptide, Gly-Glu-Asp-Tyr at pH 12.5 will be ______. (Integer answers)


An α-helix is a structural feature of ______.


What is the effect of denaturation on the structure of proteins?


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:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×