Question 4
The breakdown of pyruvate to give carbon dioxide, water and energy take place in:

(a) Cytoplasm
(b) Mitochondria
(c) Chloroplast
(d) Nucleus

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Solution

(b) Mitochondria

The breakdown of pyruvate to give carbon dioxide, water and energy take place in the mitochondria. Glucose is broken down into pyruvate and energy is released in the form of ATP in the cytoplasm. Pyruvate is taken into mitochondria and then enters Krebs cycle where it is broken down into carbon dioxide and water, yielding ATP and other by-products which then enter electron transport chain to give rise to more ATPs.

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Similar questions

The breakdown of pyruvate to give carbon dioxide, water and energy takes place in

(a) cytoplasm.

(b) mitochondria.

(d) nucleus.

The breakdown of private to give co2, water and energy takes place in which organelle. Options cytoplasm, mitochondria, chloroplast, nucleus.

The breakdown of pyruvate to give carbon dioxide, water and energy take place in:

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