The correct sequence of anaerobic respiration in yeast is

G l u c o s e c y t o p l a s m \to P y r u v a t e m i t o c h o n d r i a \to E t h a n o l + C a r b o n D i o x i d e

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G l u c o s e c y t o p l a s m \to P y r u v a t e c y t o p l a s m \to L a c t i c A c i d

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G l u c o s e c y t o p l a s m \to P y r u v a t e m i t o c h o n d r i a \to L a c t i c A c i d

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G l u c o s e c y t o p l a s m \to P y r u v a t e c y t o p l a s m \to E t h a n o l + C a r b o n D i o x i d e

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Solution

The correct option is D $G l u c o s e c y t o p l a s m \to P y r u v a t e c y t o p l a s m \to E t h a n o l + C a r b o n D i o x i d e$
If oxygen is absent, many cells are still able to use glycolysis to produce ATP. Two ways this can be done are through fermentation and anaerobic respiration. Fermentation is the process by which the electrons and hydrogen ions from the NADH produced by glycolysis are donated to another organic molecule. Anaerobic respiration in yeast cells occurs when the glucose glycolytically converted to pyruvic acid in the cytoplasm, followed by conversion to ethanol and carbon dioxide which also happens in the cytoplasm.
Hence the correct option is D.

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Question 12
The correct sequence of anaerobic reactions in yeast is

(a) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e m i t o c h o n d r i a - ------- \to E t h a n o l + C a r b o n d i o x i d e$
(b) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e c y t o p l a s m - ----- \to L a c t i c a c i d$
(c) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e m i t o c h o n d r i a - ------- \to L a c t i c a c i d$
(d) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e c y t o p l a s m - ----- \to E t h a n o l + C a r b o n d i o x i d e$

Q. The correct sequence of anaerobic reactions in yeast is

(a)

G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e m i t o c h o n d r i a - ------- \to E t h a n o l + C a r b o n d i o x i d e

(b)

G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e c y t o p l a s m - ----- \to L a c t i c a c i d

(c)

G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e m i t o c h o n d r i a - ------- \to L a c t i c a c i d

(d)

G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e c y t o p l a s m - ----- \to E t h a n o l + C a r b o n d i o x i d e

Question 12
The correct sequence of anaerobic reactions in yeast is

(a) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e m i t o c h o n d r i a - ------- \to E t h a n o l + C a r b o n d i o x i d e$
(b) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e c y t o p l a s m - ----- \to L a c t i c a c i d$
(c) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e m i t o c h o n d r i a - ------- \to L a c t i c a c i d$
(d) $G l u c o s e c y t o p l a s m - ----- \to P y r u v a t e c y t o p l a s m - ----- \to E t h a n o l + C a r b o n d i o x i d e$

Q. Which of the following statement(s) is (are) correct?
(i) Pyruvate can be converted into ethanol and carbon dioxide by Yeast.
(ii) Fermentation takes place in aerobic bacteria.
(iii) Fermentation takes place in mitochondria.
(iv) Fermentation is a form of anaerobic respiration.

Q. Anaerobic respiration in yeast results in the formation of ethanol and CO

_{2}

, whereas in muscle tissue lactate is the final product. In both the cases the yield of ATP is

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