Explain what do you understand by spectrum of antibiotics. Give examples.
The full range of micro-organisms attacked by an antibiotic is called its spectrum.
Antibiotics can be divided into two types:
Narrow spectrum antibiotics: which are effective against very few number of diseases.
Example: penicillin.
Broad spectrum antibiotics are the antibiotics which are effective against several different types of micro-organism.
Example: Chloramphenicol, Tetracycline.
Describe the following with suitable examples:
(i) Tranquilizers.
(ii) Antifertility drugs.
(iii) Antihistamines.
Describe the following with suitable examples:
(i) Preservative
(ii) Artificial sweeteners
(iii) Antioxidants
(iv) Edible colours.
Detergrent molecules associated with ___________ hydrocarbon tail is a source of pollution.
