Class 11 Biology - Chapter Biomolecules NCERT Solutions | What is meant by tertiary structure of p
What is meant by tertiary structure of proteins?
The helical polypeptide chain undergoes coiling and folding to form a complex three-dimensional shape referred to as tertiary structure of proteins. These coiling and folding hide the non-polar amino acid chains in the interior of molecule and expose the polar side chains to the exterior. The tertiary structure is held together by the weak non-covalent interacting formed between various parts of the polypeptide chain.
More Questions From Class 11 Biology - Chapter Biomolecules
- Q:- Describe the important properties of enzymes.
- Q:- Illustrate a glycosidic, peptide and a phospho-diester bond.
- Q:- What are macromolecules? Give examples.
- Q:- Find and write down structures of 10 interesting small molecular weight biomolecules. Find if there is any industry which manufactures the compounds by isolation. Find out who are the buyers.
- Q:- What are gums made of? Is Fevicol different?
- Q:- Proteins have primary structure. If you are given a method to know which amino acid is at either of the two termini (ends) of a protein, can you connect this information to purity or homogeneity of a protein?
- Q:- Draw the structure of the amino acid, alanine.
- Q:- Find out a qualitative test for proteins, fats and oils, amino acids and test any fruit juice, saliva, sweat and urine for them.
- Q:- Find out and make a list of proteins used as therapeutic agents. Find other applications of proteins (e.g., cosmetics, etc.)
- Q:- Explain the composition of triglyceride.
Popular Questions of Class 11 Biology
- Q:- Why are living organisms classified?
- Q:- Discuss how classification systems have undergone several changes over a period of time?
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- Q:-
Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell. - Q:- What is the average cell cycle span for a mammalian cell?
- Q:- What are the factors affecting the rate of diffusion?
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(i) pO2 lesser, pCO2 higher
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- Q:-
Choose the correct answer among the following:
(a) Gastric juice contains
(i) pepsin, lipase and rennin
(ii) trypsin lipase and rennin
(iii) trypsin, pepsin and lipase
(iv) trypsin, pepsin and renin
(b) Succus entericus is the name given to
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(ii) intestinal juice
(iii) swelling in the gut
(iv) appendix
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