Biomolecules
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NCERT Class 11 Biology Chapter wise Solutions
UNIT I: DIVERSITY IN THE LIVING WORLD
- 1 : The Living World
- 2 : Biological Classification
- 3 : Plant Kingdom
- 4 : Animal Kingdom
UNIT II: STRUCTURAL ORGANISATION IN PLANTS AND ANIMALS
- 5 : Morphology of Flowering Plants
- 6 : Anatomy of Flowering Plants
- 7 : Structural Organisation in Animals
UNIT III: CELL: STRUCTURE AND FUNCTIONS
- 8 : Cell : The Unit of Life
- 9 : Biomolecules
- 10 : Cell Cycle and Cell Division
UNIT IV: PLANT PHYSIOLOGY
- 11 : Transport in Plants
- 12 : Mineral Nutrition
- 13 : Photosynthesis in Higher Plants
- 14 : Respiration in Plants
- 15 : Plant Growth and Development
UNIT V: HUMAN PHYSIOLOGY
- 16 : Digestion and Absorption
- 17 : Breathing and Exchange of Gases
- 18 : Body Fluids and Circulation
- 19 : Excretory Products and their Elimination
- 20 : Locomotion and Movement
- 21 : Neural Control and Coordination
- 22 : Chemical Coordination and Integration
NCERT Solutions For Class 11 Biology Chapter 9 Biomolecules
- 9.1 How to Analyse Chemical Composition?
- 9.2 Primary and Secondary Metabolites
- 9.3 Biomacromolecules
- 9.4 Proteins
- 9.5 Polysaccharides
- 9.6 Nucleic Acids
- 9.7 Structure of Proteins
- 9.8 Nature of Bond Linking Monomers in a Polymer
- 9.9 Dynamic State of Body Constituents – Concept of Metabolism
- 9.10 Metabolic Basis for Living
- 9.11 The Living State
- 9.12 Enzymes
NCERT Solutions For Class 11 Biology Biomolecules
1. What are macromolecules? Give examples.
2. Illustrate a glycosidic, peptide and a phospho-diester bond.
3. What is meant by tertiary structure of proteins?
4. 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.
5. 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?
6. Find out and make a list of proteins used as therapeutic agents. Find other applications of proteins (e.g., cosmetics, etc.)
7. Explain the composition of triglyceride.
8. Can you describe what happens when milk is converted into curd or yoghurt from your understanding of proteins.
9. Can you attempt building models of biomolecules using commercially available atomic models (Ball and Stick models).
10. Attempt titrating an amino acid against a weak base and discover the number of dissociating ( ionizable ) functional groups in the amino acid.
11. Draw the structure of the amino acid, alanine.
12. What are gums made of? Is Fevicol different?
13. Find out a qualitative test for proteins, fats and oils, amino acids and test any fruit juice, saliva, sweat and urine for them.
14. 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!
15. Describe the important properties of enzymes.