Comparison of photosynthesis and chemosynthesis

1. A- Autotrophs
Autotrophic organisms produce their
food by themselves.
They are two types
1-Photosynthesis
2- Chemosythesis

2.  1- Photosynthesis
 Some organisms
use the Sun’s
energy to form
energy or food this
process called
photosynthesis.

4. Green plants, some bacteria and blue
green algae are examples to
photosynthesis.
Because they have cholorophyll
pigment.

5. 2- Chemosynthesis
Some producers make energy-rich molecules
through a process called chemosynthesis.
These organisms are found near volcanic vents
in the ocean floor. Inorganic molecules in the
water provide the energy source for
chemosynthesis.

9.  2-Heterotrophs
 Heterotrophs cannot make their own food .
They obtain energy by eating other
organisms.
 In the body, energy is produced by
catabolism of food by cellular respiration
process.