Saturday, October 1, 2022
Mitochondrial Health

Chapter 9 – Cellular Respiration Part 2

This is Part 2 of Cambell’s Biology Chapter 9 – Cellular Respiration. This video covers pyruvate dehydrogenase, the citric acid cycle, oxidative phosphorylation, and fermentation. It corresponds with Chapter 9 of the Campbell Biology textbook. Although the lecture slides may be different from your textbook slides, they contain all the same information.

Time Stamps:
0:23 – Overview of Redox Reactions and GLycolysis (see part 1 for full lecture
1:16 – Oxidation of Pyruvate (Pyruvate Dehydrogenase) – shuttling pyruvate into the mitochondria
4:42 – The Citric Acid Cycle
10:58 – Electron Transfer Revisited
13:28 – Oxidative level Phosphorylation vs. Substrate level Phosphorylation (to make ATP)
15:12 – Oxidative Phosphorylation (beginning with the mitochondria)
16:27 – Oxidative Phosphorylation – The Electron Transport Chain
19:55 – Oxidative Phosphorylation – Chemiosmosis
20:48 – ATP synthase (the enzyme that catalyzes ATP formation)
24:27 – Oxidative Phosphorylation – A brief Review
25:16 – An account of ATP production and energy flow in cellular respiration
25:50 – Cyanide – a case study on the electron transport chain and aerobic respiration
29:13 – Fermentation
31:05 – Alcohol fermentation
32:51 – Lactic Acid Fermentation
35:30 – Comparing alcohol and lactic acid fermentation
37:40 – obligate anaerobes, obligate aerobes, facultative anaerobes
39:30 – Metabolic Pathways connecting to glycolysis and citric acid cycle
41:40 – Regulation of Metabolic Pathways (Phosphofructokinase, negative feedback regulation)

Helpful Resources:

Free online Biology Textbook at OpenStax…

Copyright Notice
This video and its content are copyright of Jennifer Skorupa – © J. Skorupa 2021. All rights reserved. Any redistribution or reproduction of part or all of the contents in any form is prohibited other than the following:
• you may print or download to local hard disk extracts for your personal and non-commercial use only
You may not, except with our express written permission, distribute or commercially exploit the content. Nor may you transmit it or store it on any other website or other forms of an electronic retrieval system.

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3 thoughts on “Chapter 9 – Cellular Respiration Part 2
  1. Yes, thank you so much! I sure others were waiting to watch this video. Your video's are the best out there. I have watched other video's from other professors on Youtube, but yours uses is much better as it uses some awesome illustrations, is structured well, and you explain it very well. I hope you continue to put out these awesome videos on Cambell's Biology. It sure helps me a lot!

    I sure hope your students watch these videos and some of the exam questions are derived from these videos for now and for the next semesters on.

  2. Hi thank you so much for this! Do you happen to have any idea when you will post photosynthesis? I have a midterm next week that will cover photosynthesis and would love nothing more than to review by watching your video on it! You rock Prof S!!
    Much Love, From Texas!

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