Question

Explain the following terms.
i) Pasteurization ii) Fermentation iii) Serum iv) Vaccination v) Permanent tissue

Answer 1

Answer:

1. pasteurization:- the partial sterilization of a product, such as milk or wine, to make it safe for consumption and improve its keeping quality.
2. fermentation:- the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.
3. serum:- an amber-coloured, protein-rich liquid which separates out when blood coagulates.
4. vaccination:- treatment with a vaccine to produce immunity against a disease; inoculation.
5. permanent tissue:- plant tissue that has completed its growth and differentiation and is usually incapable of meristematic activity.