Page 19 - Ranger PT3 2022 science

Science PT3 Chapter 2 Cell as the Basic Unit of Life
Differences between Cellular Respiration and Photosynthesis
1. Diagram 2.10 shows the differences between cellular respiration and photosynthesis.
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Cellular respiration Aspects Photosynthesis
Mitochondria Place occurs Chloroplast
Involves the release of Absorption/ Involves the absorption of
energy Release of energy energy

Chemical energy from food Source of energy Light energy from the Sun Form 1

Organisms Green plants, algae and
All living organisms
involved cyanobacteria
Form 1
Change in
Breaks down glucose Synthesises glucose
glucose
Carbon dioxide, water and End products Oxygen and glucose
energy
All the time Time occurs In the presence of light

Diagram 2.10 Differences between cellular respiration and photosynthesis
The Processes of Cellular Respiration and Photosynthesis are Complementary
1. The cellular respiration process produces carbon dioxide.
2. Carbon dioxide gas is absorbed by plants to carry out the photosynthesis process.
3. Without carbon dioxide gas, plants would not be able to produce oxygen and glucose.
4. Oxygen is absorbed by all living organisms for the cellular respiration process.
5. Glucose is used by all living organisms and broken down during the cellular respiration
process.
6. The breakdown of glucose produces carbon dioxide gas which is reused by plants.

Quiz
Quiz
Quiz
Quiz
Cellular respiration
uses energy while
photosynthesis
produces energy.
True or False?
Diagram 2.11 Cellular respiration and photosynthesis

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