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Life Processes — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLife Processes5 Marks
Question
Distinguish between photosynthesis and respiration.
✓

Answer

Differences between Cellular Respiration and Photosynthesis:
 
Cellular Respiration
Photosynthesis
1.
Occurs in all living organisms.
Occurs only in all green plants, algae, and in some bacteria.
2.
The entire process occurs in Mitochondria.
The entire process occurs in Chloroplasts.
3.
Glucose and oxygen are the reactants of this process.
Carbon dioxide, water, and light energy are the reactants of this process.
4.
In this process, food particles are broken down to release energy.
In this process, food is synthesis by capturing the energy.
5.
It is an exergonic reaction as energy is released.
It is an endothermic reaction as it requires energy.
6.
This process does not require sunlight since cellular respiration occurs all the time.
This process requires sunlight since photosynthesis occurs only in the presence of sunlight.
7.
The chemical reaction of cellular Respiration is:
$C_6 H_{12} O_6+6 O_2 \rightarrow 6 CO_2+6 H_2 O$
The chemical reaction of photosynthesis is:
$6 CO_2+6 H_2 O \rightarrow C_6 H_{12} O_6+6 O_2$

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