Question
- Define the following terms:
- Co-enzymes.
- Mutation in biomolecules.
- Nucleotides.
- List four main functions of carbohydrates in organisms.
✓
Answer
- Co-enzymes: The non proteinous components which increase the activity of enzymes are called co- enzymes.
- Mutation in biomolecules: It is a chemical change in DNA molecule that could lead to synthesis of proteins with altered amino acid sequence e.g sickel cell anaemia is caused by mutation.
- Nucleotide: is a species which contains a phosphate unit, a sugar unit, and any one of the pyrimdine nitrogen bases or purines. e.g Ribonucleotide, deoxy -ribonucleotides.
- They support plant structure, e.g cellulose.
- They produce energy necessary for functioning of living body and doing work.
- They are used to store chemical energy in the form of glycogen in liver. Starch is main storage polysaccharide of plants.
- Cellulose present in grass and plants acts as a food for various grazing animals.
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