1 / 14

Cellular Respiration and Fermentation

Cellular Respiration and Fermentation. sun. light energy. . CO 2. +. H 2 O. +. +. O 2. C 6 H 12 O 6. glucose. H 2 O. ATP energy. +. . +. +. O 2. CO 2. H 2 O. C 6 H 12 O 6. even though this equation is a bit of a lie … it makes a better story. Energy cycle.

casper
Download Presentation

Cellular Respiration and Fermentation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Cellular Respiration and Fermentation

  2. sun light energy  CO2 + H2O + + O2 C6H12O6 glucose H2O ATP energy +  + + O2 CO2 H2O C6H12O6 even thoughthis equationis a bit of a lie…it makes a better story Energy cycle Photosynthesis plants CO2 O2 animals, plants Cellular Respiration ATP The Great Circleof Life,Mufasa!

  3. ATP • ATP is biological energy • ATP + water  ADP + P = energy • When you break the bond you get energy • ATP = stored energy • ADP = used energy

  4. ATP energy  + + + C6H12O6 6O2 6CO2 6H2O Cellular Respiration • Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. 38 ATP produced Glucose

  5. Oxygen required 2 ATP needed Cytoplasm If no oxygen is present then fermentation occurs CO2 released 2 ATP produced 34 ATP produced 4 ATP produced

  6. Glycolysis(occurs in cytoplasm) • Break down glucose into 2 pyruvate molecules • Glucose has 6 carbon • Pyruvate has 3 carbon • No oxygen in required (anaerobic) • Needs 2ATP to happen • Generates 4ATP • Net gain of 2ATP at the end of the process

  7. After Glycolysis • If oxygen is present, pyruvate moves to mitochondria where cellular respiration occurs. • If not oxygen is present, pyruvate is used for alcoholic or lactic acid fermentation.

  8. Cellular respiration occurs in two steps • Kreb’s cycle or citric acid cycle • Produced 2ATP • Electron transport chain • Produced 34 ATP Both processes require oxygen and occur in the mitochondria

  9. Kreb’s cycle • Pyruvic acid produced from glycolysis is used to make • Carbon dioxide • NADH • ATP • FADH2 • 4 ATP are produced for immediate use for cell processes • NADH and FADH2 carry electrons to the electron transport chain to make more energy • CO2 is released from the cell

  10. Electron transport chain • The ETC used high energy electrons from the Kreb’s cycle to convert ADP to ATP. • ETC is composed of a series of carrier proteins in the inner membrane of the mitochondria. • Water is produced and released at the end of the ETC. • 34 ATP are produced in the end

  11. Fermentation • Two types • Alcoholic fermentation • Lactic acid fermentation Both processes do not require oxygen (anaerobic) and occur after glycolysis.

  12. Alcoholic fermentation • Yeasts and a few other microorganisms use this process • CO2 bubbles that are released from this process cause bread to rise. • Also used to make beer and wine

  13. Lactic acid fermentation • Occurs in humans and other eukaryotes • Muscle cramps are caused by a build up of lactic acid • When you exercise vigorously, the large muscles run out of oxygen quickly. • Your muscles quickly produce ATP using lactic acid fermentation. • Lactic acid builds up which causes your muscles to ache.

More Related