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.
Popular Questions of Class 11 Biology
- Q:- Describe briefly the four major groups of Protozoa.
- Q:- Why are living organisms classified?
- Q:- State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria
- Q:- What is the difference between direct and indirect development?
- Q:-
Define a taxon. Give some examples of taxa at different hierarchical levels.
- Q:- Describe the important properties of enzymes.
- Q:-
What are the steps involved in formation of a root nodule?
- Q:- How is a key helpful in the identification and classification of an organism?
- Q:- Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.
- Q:- What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.
Recently Viewed Questions of Class 11 Biology
- Q:- Explain heart sounds.
- Q:- Discuss with your teacher about
(i) haploid insects and lower plants where cell-division occurs, and
(ii) some haploid cells in higher plants where cell-division does not occur. - Q:- Column I Column II
(a) Eosinophils (i) Coagulation
(b) RBC (ii) Universal Recipient
(c) AB Group (iii) Resist Infections
(d) Platelets (iv) Contraction of Heart
(e) Systole (v)Gas transport - Q:- Why are living organisms classified?
- Q:-
List the hormones secreted by the following:
(a) Hypothalamus
(b) Pituitary
(c) Thyroid
(d) Parathyroid
(e) Adrenal
(f) Pancreas
(g) Testis
(h) Ovary
(i) Thymus
(j) Atrium
(k) Kidney
(l) G-I Tract - Q:-
What are the functions of liver?
- Q:- What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
- Q:- What are gums made of? Is Fevicol different?
- Q:-
New cells generate from (a) bacterial fermentation (b) regeneration of old cells (c) pre-existing cells (d) abiotic materials
- Q:- How is pinnately compound leaf different from palmately compound leaf?
3 Comment(s) on this Question
In exam,If I write this answer then will I get full marks of this question? Plz tell me ......
In exam,if I write this answer then will I get full marks of this question?
Thanks
- NCERT Chapter