Question

What does autotroph mean?

Answer 1

Autotrophs:

1. Autotrophs are self-feeders that obtain their energy from non-living sources such as sunlight and carbon dioxide.
2. Autotrophs are referred to as producers because they offer energy and food to all heterotrophic organisms.
3. There are two types of autotrophs: Photoautotrophs and Chemoautotrophs

Photoautotrophs:

1. These autotrophs obtain their energy from the sun and transform it into useful energy.
2. Example: Higher plants, Algae, Bacteria

Chemoautotrophs:

1. These autotrophs derive their energy from chemicals, primarily inorganic compounds like hydrogen sulphide and ammonia.
2. Example: Sulphur bacteria, Nitrobacter.