Question

Why is respiration considered an exothermic process?​

Answer 1

Answer:

Respiration is a exothermic process because in respiration Carbondioxide ,water and energy is released.The energy released is stored in the form of ATP ( Adenosine triphosphate).

As we know there are two types of Respiration.

• ☞Aerobic Respiration.
• ☞Anaerobic Respiration

Let us see two cases separately;

☞Aerobic Respiration:

The respiration which takes place in the presence of oxygen is called aerobic respiration.

In this mode organic food is completely oxidised in presence of oxygen.

36 or 38 ATP of energy is released.

Equation is :

$\red{\sf{C_{6}H_{12}O_{6}\overset{glycolysis}{\underset{(In\: cytoplasm)}{\longrightarrow}}2CH_{3}COCOOH}}$

further,

$\red{\sf{2CH_{3}COCOOH\overset{Krebs\:cycle}{\underset{(Mitochondria)}{\longrightarrow}}6CO_{2}+6H_{2}O+36\:or\:38\:ATP}}$

☞Anaerobic Respiration:

• This type of respiration takes place in the absence of oxygen.
• The end products are lactic acid and 2ATP or Ethanol , Carbondioxide and 2ATP.
• The organic substances don't get oxidised completely.

Answer 2

Answer:

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