Lectures

Electron Transport Chain (ETC) and Chemiosmosis

by Georgina Cornwall, PhD
(1)

Questions about the lecture
My Notes
  • Required.
Save Cancel
    Learning Material 2
    • PDF
      Slides 17 KrebsETCChemiosmosis CellBiology.pdf
    • PDF
      Download Lecture Overview
    Report mistake
    Transcript

    00:00 Previously, you've learned about the first two phases of cell respiration with glycolysis and pyruvate oxidation.

    00:09 Now it's time to dig in a little deeper and look at the Krebs cycle and Electron Transport Chain that's paired with chemiosmosis. This is where the real energy yields happen. So in this lecture, we will continue our tracking of carbon as well as electron carriers and ATP production. So by the end of it you should be able to diagram where each of these come from in the whole process of cellular respiration as well as where they go.

    00:41 For example, electron carriers end up going to the Electron Transport Chain. Also you should be able to describe how the electron or the gradient is created during the Electron Transport Chain.

    00:53 And explain how ATP is produced in the process of chemiosmosis.

    00:59 Previously we covered glycolysis and pyruvate oxidation. Now it's time to move into the Krebs cycle and Electron Transport Chain. We've already produced some full electron carriers with their hydrogens and electrons. And now in the Krebs cycle, we are going to produce even more electron carriers.

    01:18 We have NAD's picking up hydrogens and electrons to become NADH, plus an extra H.

    01:25 And then we have a new player which is FADH which will actually become FADH2. So FAD to FADH2.

    01:35 Another electron carrier works in just the same way as NAD. So, don't get in a panic about it.

    01:42 The point here is they will transport electrons to the Electron Transport Chain and that is where we'll see generation of piles and piles of ATP. The major energy yielding phase of cellular respiration.


    About the Lecture

    The lecture Electron Transport Chain (ETC) and Chemiosmosis by Georgina Cornwall, PhD is from the course Energy, Enzymes and Metabolism.


    Included Quiz Questions

    1. …NADH and FADH2.
    2. …ATP and GTP.
    3. …ATP and UTP.
    4. …GTP only.
    5. …ATP only.

    Author of lecture Electron Transport Chain (ETC) and Chemiosmosis

     Georgina Cornwall, PhD

    Georgina Cornwall, PhD


    Customer reviews

    (1)
    5,0 of 5 stars
    5 Stars
    5
    4 Stars
    0
    3 Stars
    0
    2 Stars
    0
    1  Star
    0