early autotrophic bacteria and the developement of the atmos

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
Posts: 1
Joined: Thu Jan 22, 2009 6:54 pm

early autotrophic bacteria and the developement of the atmos

Post by honorsbiostudent » Thu Jan 22, 2009 7:07 pm

ok so this is sort of evolutionary but it is for molecular bio I promise. umm, just wondering what role early autotrophic bacteria played in the developement of our atmosphere. also, what are three things that resulted from their activity. I know that they (the early autotrophs) released enough oxygen into the atmosphere to cause primary heterotrophs to die and secondary heterotrophs to arise but Im not really sure of what else happened. help would be greatly appreciated

User avatar
Inland Taipan
Inland Taipan
Posts: 3909
Joined: Thu Feb 03, 2005 2:46 pm
Location: Canada

Post by canalon » Sat Jan 24, 2009 3:47 pm

What can you assume about the O2 sensitivity of most of the bacteria before there was O2 in the atmosphere? What can be the effect of an increasing O2 concentration in the atmosphere?

Science has proof without any certainty. Creationists have certainty without
any proof. (Ashley Montague)

Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests