discuss different types of biomolecules;  describe the important structural features of biomolecules;  classify carbohydrates, proteins and lipids on the basis of their structure and functions;  give the composition of proteins and nucleic acids;  explain the difference between DNA and RNA;  differentiate between oils and fats;  explain the action of enzymes and their characteristic features and  discuss important hormones and their importance  name some important vitamins and give their deficiency symptoms.  list the functions of biomolecules in biological system

Different Types of Biomolecules: Biomolecules are organic molecules that are involved in the maintenance and metabolic processes of living organisms. They include carbohydrates, lipids, proteins, and nucleic acids.

Structural Features of Biomolecules: Biomolecules have unique structural features that allow them to perform their specific functions. For example, proteins have a complex structure with primary, secondary, tertiary, and quaternary levels of organization. Nucleic acids, on the other hand, have a double helix structure.

Classification of Carbohydrates, Proteins, and Lipids: Carbohydrates can be classified into monosaccharides, disaccharides, and polysaccharides based on the number of sugar units. Proteins can be classified based on their structure into fibrous, globular, and membrane proteins. Lipids can be classified into simple, compound, and derived lipids.

Composition of Proteins and Nucleic Acids: Proteins are composed of amino acids, while nucleic acids are composed of nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base.

Difference Between DNA and RNA: DNA (Deoxyribonucleic Acid) is double-stranded and contains the sugar deoxyribose, while RNA (Ribonucleic Acid) is single-stranded and contains the sugar ribose. DNA is responsible for storing and transferring genetic information, while RNA is involved in protein synthesis.

Difference Between Oils and Fats: Oils are unsaturated fats that are liquid at room temperature, while fats are saturated and are solid at room temperature.

Action of Enzymes: Enzymes are proteins that act as biological catalysts. They speed up chemical reactions in the body by lowering the activation energy required for the reaction to occur.

Important Hormones and Their Importance: Hormones like insulin, adrenaline, and cortisol play crucial roles in regulating various body functions like metabolism, stress response, and blood sugar levels.

Important Vitamins and Their Deficiency Symptoms: Vitamin A deficiency can lead to night blindness, Vitamin B deficiency can lead to beriberi, Vitamin C deficiency can lead to scurvy, and Vitamin D deficiency can lead to rickets.

Functions of Biomolecules in Biological System: Biomolecules play various roles in biological systems. Carbohydrates provide energy, proteins perform a wide range of functions including acting as enzymes and hormones, lipids store energy and form cell membranes, and nucleic acids store and transfer genetic information.