How did the first fermenting autotrophs appeared, Biology

Assignment Help:

How did the first fermenting autotrophs appeared? What about the first aerobic beings?

A heterotrophic hypothesis asserts that the first living beings were the fermenting heterotrophs. The Fermentation released carbon dioxide (CO2) and then the atmosphere became enriched by this gas. By the mutation and the natural selection organisms capable of using carbon dioxide and light to synthesize organic material appeared and these would have been the first photosynthetic beings (that were also fermenting beings since there was no abundance of oxygen).

Ever since photosynthesis is a reaction that releases molecular oxygen, with the emergence of fermenting autotrophs this gas became available. Few organisms then developed aerobic respiration using O2, a highly efficient method to produce energy.

 


Related Discussions:- How did the first fermenting autotrophs appeared

Zoology, Write briefly on neural mechanism of learning?

Write briefly on neural mechanism of learning?

Explain in detail about soil micromorphology, Explain in detail about soil ...

Explain in detail about soil micromorphology A good examination with optical aid reveals more detailed features which are helpful in understanding pedogenesis. This is known as

Give the causative organism of bacillary dysentery, Give the causative orga...

Give the causative organism and symptoms of Bacillary Dysentery • Bacillary dysentery is caused by  Shigella sp. (Shigella sonnei, S. dysenteraei). Incubation period is

Name the molecule that donates hydrogen for photosynthesis, In sulfur photo...

In sulfur photosynthetic bacteria what is the molecule that donates hydrogen for photosynthesis? In sulfur photosynthetic bacteria the substance that donates hydrogen is hydrog

Define plate counts and colony forming unit, Define Plate Counts and Colony...

Define Plate Counts and Colony Forming Unit? Plate counts is the most frequently used method to measure microbial numbers. The technique, however, can be used only for those mi

What is osmotic pressure, Q What is osmotic pressure? Osmotic pressure ...

Q What is osmotic pressure? Osmotic pressure is the pressure produced in an aqueous solution by a region of lower solute concentration upon a region of higher solute concentrat

Gills - respiratory organs, Gills - Respiratory Organs Gills are the s...

Gills - Respiratory Organs Gills are the specialised respiratory organs of several aquatic animals. They are found in mollusis and as well in many crustaceans. Typically gills

Name the classes into which the phylum arthropoda is divided, What are the ...

What are the classes into which the phylum Arthropoda is divided? What are the three main ones and some of their representative species? The three major classes of arthropods a

Skin, SKIN - Largest organ of body. It is covered by hair...

SKIN - Largest organ of body. It is covered by hairs or pelage i.e. pillifera. Study of skin is dermatology. Outermost covering of body. Skin is elastic and

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd