Question

1. Write the important aspects about the overall
chemical equation of respiration, pertaining to
the following:
(i) number of steps for glucose to break down
into CO2, and H2O.
(ii) involvement of enzymes.
(iii) forms of energy liberated.​

Answer 1

Answer:

Listed below are three important aspects:

(i) The breakdown of glucose to water and carbon dioxide does not take place in a single step, but in a series of chemical steps, which occur in two phases:

Glycolysis (cytoplasm)

Krebs cycle (mitochondria)

(ii) Every breakdown step is due to a particular enzyme.

(iii) The energy that is liberated in the disintegration of the glucose molecule is not all in the form of heat but a large part of its converted into chemical energy in the form of ATP (adenosine triphosphate).

Explanation:

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Answer 2

Answer:

Listed below are three important aspects:

(i) The breakdown of glucose to water and carbon dioxide does not take place in a single step, but in a series of chemical steps, which occur in two phases:

Glycolysis (cytoplasm)

Krebs cycle (mitochondria)

(ii) Every breakdown step is due to a particular enzyme.

(iii) The energy that is liberated in the disintegration of the glucose molecule is not all in the form of heat but a large part of its converted into chemical energy in the form of ATP (adenosine triphosphate).