Class 11 Biology - Chapter Biomolecules NCERT Solutions | Proteins have primary structure. If you
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?
Yes, if we are given a method to know the sequence of proteins, we can use this information to determine purity of a protein. It is known that an accurate sequence of a certain amino acid is very important for the functioning of a protein. If there is any change in the sequence, it would alter its structure, thereby altering the function. So by knowing sequence of a given protien, we can determine its structure and compare it with any of the known correct protein sequence. Any change in the sequence can be linked to the purity or homogeneity of a protein.
For example, a single change in the sequence of haemoglobin in P chain at 6th position can alter the normal haemoglobin structure to an abnormal structure that can cause sickle cell anaemia.
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:- What are gums made of? Is Fevicol different?
- 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:- 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.
- Q:- Find out how much cellulose is made by all the plants in the biosphere and compare it with how much of paper is manufactured by man and hence what is the consumption of plant material by man annually. What a loss of vegetation!
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?
- Q:- What is the basis of classification of algae?
- Q:- What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
- Q:- What is meant by modification of root? What type of modification of root is found in the (a) Banyan tree (b) Turnip (c) Mangrove trees
- Q:- State the location and function of different types of meristem.
- Q:- Answer in one word or one line. (i) Give the common name of Periplaneta americana. (ii) How many spermathecae are found in earthworm? (iii) What is the position of ovaries in the cockroach? (iv) How many segments are present in the abdomen of cockroach? (v) Where do you find malphigian tubules?
- 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?
Recently Viewed Questions of Class 11 Biology
- Q:- Explain micturition.
- Q:- Organise a discussion in your class on the topic- Are viruses living or non-living?
- Q:- Explain the autoregulatory mechanism of GFR.
- Q:- What causes the opening and closing of guard cells of stomata during transpiration?
- Q:- What will be the pO2 and pCO2 in the atmospheric air compared to those in the alveolar air?
(i) pO2 lesser, pCO2 higher
(ii) pO2 higher, pCO2 lesser
(iii) pO2 higher, pCO2 higher
(iv) pO2 lesser, pCO2 lesser - Q:-
How are polysaccharides and disaccharides digested?
- Q:- What happens when a pressure greater than the atmospheric pressure is applied to pure water or a solution?
- Q:- What are the characteristic features of Euglenoids?
- Q:- Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why?
- Q:- Differentiate between
(a) Respiration and Combustion
(b) Glycolysis and Krebs cycle
(c) Aerobic respiration and Fermentation
1 Comment(s) on this Question
Bestreasoning and explaination i could find
- All Chapters Of Class 11 Biology
- All Subjects Of Class 11