question_answer

                                                        Explain the use of Bacteria, Fungi and Algae.

Answer:

      

Uses of Bacteria:

(i) They are used to increase soil fertility by fixing nitrogen.

(ii) Some bacteria are used to produce antibiotics.

(iii) Lactobacillus bacterium converts milk into curd.

(iv) Some bacteria help in many functions of our body.

Uses of Fungi:

(i) Yeasts are used to prepare alcohol and vinegar by fermentation.

(ii) Mushrooms are eaten as food.

(iii) Penicillin is an antibiotic formed by a fungus called Penicillium.

Uses of Algae:

(i) Algae are used to make jellies.

(ii) Chlorella is used to obtain proteins.

(iii) Silica from diatoms are used in toothpastes.