what is the difference between autotrophic and photoautotrophic ?

Asked by Sakshi | 2nd Nov, 2013, 03:43: PM

Expert Answer:

The mode of nutrition in which an organism is able to prepare its own food is called autotrophic mode of nutrition. Green plants follow autotrophic mode of nutrition.

Autotrophic nutrition is mainly of two types: photoautotrophic and chemoautotrophic nutrition.

Autotrophs which synthesise organic matter from inorganic substances using the energy from sunlight through photosynthesis are termed as photoautotrophs. E.g. plants, algae, cyanobacteria, phytoplanktons.

Autotrophs which synthesise organic matter from inorganic substances using chemical energy are termed as chemoautotrophs. E.g. nitrifying bacteria like Nitrosomonas, thermophilic bacteria like Thiobacillus.

Answered by Sheetal Kolte | 5th Nov, 2013, 11:36: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.