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Text Comments (8)

1 answer

Last reply by: Dr Carleen Eaton
Sun Nov 27, 2011 4:11 PM

Post by David Winski on November 21, 2011

It's not "faculative," it's "facultative."

1 answer

Last reply by: jessica chopra
Sat Oct 13, 2012 11:50 AM

Post by William Davis on March 28, 2012

Really David Winski??? Get over it dude

1 answer

Last reply by: Dr Carleen Eaton
Thu Jun 21, 2012 12:21 PM

Post by Susan McConnell on May 26, 2012

I love these lectures, they're so clear and helpful :)

1 answer

Last reply by: Dr Carleen Eaton
Sun Jun 24, 2012 6:16 PM

Post by michelle daane on June 11, 2012

Love these lectures, thank you so much.
When you refer to substrate level phosphorylation... how do we know what to consider the substrate? I would have called glucose the substrate, making step 1 and 3 examples of substrate phosphorylation?

Glycolysis and Anaerobic Respiration

  • Adenosine triphosphate (ATP) is the energy currency of the cell; it provides energy for cellular processes.
  • During cellular respiration energy stored in the chemical bonds of organic compounds is released and used to make ATP. Cellular respiration may be either aerobic or anaerobic.
  • During glycolysis, a glucose molecule is split into two pyruvate molecules. This process takes place in the cytoplasm of the cell.
  • A net of two ATP and two NADH molecules are produced during glycolysis.
  • Obligate, or strict, anaerobes are organisms that can only perform anaerobic respiration. Facultative anaerobes can perform both aerobic and anaerobic respiration.
  • When cellular respiration is anaerobic, fermentation follows glycolysis in order to regenerate NAD+ so that glycolysis can continue. In aerobic respiration, NAD+ is regenerated by the electron transport chain.
  • Two types of fermentation are alcohol fermentation and lactic acid fermentation.

Glycolysis and Anaerobic Respiration

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

AP Biology Intro