Question

Production of ethanol (C2H5OH) (C_2H_5OH)$\left(C_2{H}_{5}OH\right)$ occurs in one of the life processes of :

(a) Bread mould (b) Yeast
(c) Mushroom (d) Penicillium

Answer 1

The correct option is (b)

Explanation of the correct answer:

1. Anaerobic respiration is a type of cellular respiration where respiration takes place in the absence of oxygen.
2. The process is also called fermentation and used in wine making.
3. This type of respiration is found in yeast cells.

Explanation of the incorrect answers:

Option (a):

1. Rhizopus is a genus of fungi.
2. It is commonly called bread mould.
3. It preforms aerobic respiration.

Option (c):

1. Agaricus is a genus of mushrooms whose members contain both poisonous and edible species.
2. They also perform aerobic respiration.

Option (d):

1. Penicillium is a genus of fungi.
2. Some of the species are used to get penicillin, which is an antibiotic used for bacterial infection.
3. Some of the species are also used in cheesemaking, enzymes and organic acid production.
4. They perform aerobic respiration.

Final answer: Production of ethanol $\left(C_2{H}_{5}OH\right)$ occurs in one of the life processes of yeast.