What is photosynthesis
Photo= light
Synthesis=produce/make
- Photosynthesis results in plants giving off oxygen, which is essential for many living organisms .
- Photosynthesis removes carbon dioxide from the air and prevents it from reaching a poisonous level.
- Photosynthesis provides food for most living organisms.
How do plants photosynthesis?
For photosynthesis to take place
- Plants take in carbon dioxide from the air through tiny pores on their leaves called stomata( singular stoma)
- Plants take in water from the soil through their roots.
- Sunlight is absorbed by the chloroplasts in the cells of the leaves of the plant.
- The green pigment chlorophyll, in the chloroplasts, allows the carbon dioxide ad water to combine to form glucose.
- The energy for this reaction comes from sunlight.
- Oxygen is released and given off as a waste product.
Photosynthesis as a chemical process.
- Photosynthesis may be described as a process because it involves a number of steps.
- It is a chemical process because there are new substances formed.
Photosynthesis as a biological process.
- Photosynthesis occurs in the chloropasts of living cells where enzymes that are essential to the process are present.
- It is a biological process because it happens in living cells.