« previous next »

Author Question: Which catabolic processes may have been used by cells on ancient Earth before fr (Read 1365 times)

TI

  • Sr. Member
  • ****
  • Posts: 434
on: Jun 12, 2013
Which catabolic processes may have been used by cells on ancient Earth before free oxygen became available?
A) glycolysis and fermentation only
B) glycolysis and the citric acid cycle only
C) glycolysis, pyruvate oxidation, and the citric acid cycle
D) oxidative phosphorylation only
E) glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation, using an electron acceptor other than oxygen


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Jun 13, 2013
Definitely E. 100 percent certain ;)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

TI

  • Sr. Member
  • ****
  • Posts: 434
Reply #2 on: Jun 17, 2013
Marking this solved, thanks Coco :D


« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Nondisjunction during the formation of haploid cells. Nondisjunction during the formation of haploid cells.
Color-enhanced scanning electron micrograph of HIV virus (red) infecting T-helper cells (green). Color-enhanced scanning electron micrograph of HIV virus (red) infecting T-helper cells (green).
Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the
Earth scientists have devised a scheme to divide the planet’s natural history into distinct time ... Earth scientists have devised a scheme to divide the planet’s natural history into distinct time ...
Red Blood Cells Red Blood Cells
Growth of cultured cells from patients with xeroderma pigmentosum (XP) Growth of cultured cells from patients with xeroderma pigmentosum (XP)
Video: Antidiuretic hormone (vasoconstriction, water reabsorption & sweat inhibition)

For a complete list of videos, visit our video library