Question

What are the processes that autotrophic beings use to produce organic material from inorganic substances?

Answer 1

Autotrophs:

1. An organism that can make its own food using water, light, carbon dioxide, and other chemicals is called an autotroph.
2. Autotrophic beings produce organic material by photosynthesis or by chemosynthesis.

The process used by autotrophs to produce organic material from inorganic substances:

Photosynthesis:

1. It is a process of converting water and carbon dioxide to glucose and oxygen in the presence of sunlight and chlorophyll.
2. Examples of photosynthetic autotrophs: Green plants, green algae

Chemosynthesis:

1. It is a process of synthesizing organic compounds by utilizing chemical energy released in the oxidation of some inorganic substances.
2. Example of chemosynthetic autotroph: Sulphur bacteria.