9_Metabolism_Anaerobic_Resp_Ferm

Images clostridium botulinum cdc calvin holding

Info iconThis preview shows pages 6–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Images: Clostridium botulinum , CDC; Calvin holding breath, Bill Watterson From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 6

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
______ ______ ________ • Many anaerobic bacteria, and muscle cells that have run out of O 2 , can make ATP by using something other than oxygen as an electron acceptor (nitrate, sulfate & carbon dioxide). • In anaerobic respiration, not all the ETC is used, so less ATP is produced. Image: Electron transport chain , Tim Vickers From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 7
Anaerobic Respiration & Farts • When carbon dioxide is used as an electron acceptor, the product is either methane or acetic acid (depending on the organism). • Methane produced in our gut is produced by this process. Image: Methane 3D , Ben Mills From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 8

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
______________ When there is no final __________ __________ for the ETC , the electron transport can’t happen. Fermentation is an alternative system that allows glycolysis to continue without the other steps of respiration. Not as energetically efficient as respiration. Produces only 2 ATP . ATP ATP From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 9
Image: Glycolysis , Regis Frey From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 10

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Fermentation • Yeasts and some bacteria are able to get their ATP from glycolysis by using __________ fermentation. Converts pyruvate into ethanol and carbon dioxide. • Animal cells and some bacteria through the process of _____ ______ fermentation. Here pyruvate results in end product of lactic acid. The formation of carbon dioxide, a byproduct of ethanol fermentation, causes bread to rise. Images: Bread Rolls , Bangin; Dexter Jackson , Local Fitness When muscles need energy produced faster than the body can deliver oxygen, such as when lifting heavy weights, the working muscles generate energy anaerobically, through lactic acid fermentation. Two different fermentation pathways: From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 11
Fermentation From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 12

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Why does fermentation require extra steps after glycolysis? •I n fermentation , after glycolysis, there are additional steps to oxidize NADH (into NAD + ).
Background image of page 13
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page6 / 21

Images Clostridium botulinum CDC Calvin holding breath Bill...

This preview shows document pages 6 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online