Q1. a) What are carbohydrates? Give one example each for mono-, di- and polysaccharides.b) Describe the exchange of respiratory gases in the alveoli.
- (a)) What are carbohydrates? Give one example each for mono-, di- and polysaccharides. (200 words)
- (b)) Describe the exchange of respiratory gases in the alveoli. (200 words)
- Carbohydrates are organic compounds (Cn(H2O)n) for energy and structural roles.
- Monosaccharides are simple sugars; glucose is a primary cellular energy source.
- Disaccharides comprise two monosaccharides; sucrose (glucose+fructose) is an example.
- Polysaccharides are complex; starch stores energy in plants, glycogen in animals.
Answer: Carbohydrates are essential organic compounds primarily serving as energy sources and structural components within living organisms. They are polyhydroxy aldehydes or ketones, typically composed of carbon, hydrogen, and oxygen in a ratio resembling Cn(H2O)n. These molecules are broadly classified into monosaccharides, disaccharides, and polysaccharides based on their structural complexity and the number of sugar units they contain. Each class plays distinct roles, from immediate energy provision...