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Question: Mitochondria are surounded by membranes. Which substances pass through the membrane :-


(i) from the cytoplasm into the mitochondrion,
(ii) from the mitochondrion into the cytoplasm. 

 
Answer: The answers you need are:

(i) Oxygen, together with ADP (adenosine diphosphate) passes from the cytoplasm into the mitochondrion;

(ii) Carbon dioxide, together with water and ATP (adenosine triphosphate) passes from the mitochondrion into the cytoplasm.

 
 

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