Question

Q.2 Which of the following breathe in the absence of oxygen.
(1) Cat
(2) Plant
(3) yeast
(4) earthworm.​

Answer 1

Answer:

in plant breadth in the absence of oxygen.

Answer 2

$\boxed{\huge\underline{\mathscr\purple{Yeast }}}$

❇The process of performing respiration in the absence of oxygen is called anaerobic respiration.

❇It is seen in YEAST.

❇Option (iii)

How anaerobic respiration takes place in yeast?

➡It takes place by the process of fermentation

➡especially by alcoholic fermentation takes place in it.

➡In which Acetaldehyde,, Ethanol are the byproducts.

➡It takes place in two steps

1) Pyruvic acid Is converted to Acetaldehyde in presence of pyruvic acid decarboxylase.

2) Formed acetaldehyde is converted to ethanol in the presence of alcohol dehydrogenase

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