Glycolysis fermentation
This presentation is the property of its rightful owner.
Sponsored Links
1 / 18

Glycolysis & Fermentation PowerPoint PPT Presentation


  • 93 Views
  • Uploaded on
  • Presentation posted in: General

Glycolysis & Fermentation. Chapter 6. What is ATP? . Analogy with the coins and the bending machine How does it function like a rechargeable battery? . RECHARGING ATP. Occurs in the Mitochondria How do we obtain the energy from GLUCOSE to make ATP? 2 types of complex reactions

Download Presentation

Glycolysis & 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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Glycolysis fermentation

Glycolysis & Fermentation

Chapter 6


What is atp

What is ATP?

  • Analogy with the coins and the bending machine

  • How does it function like a rechargeable battery?


Recharging atp

RECHARGING ATP

  • Occurs in the Mitochondria

  • How do we obtain the energy from GLUCOSE to make ATP?

  • 2 types of complex reactions

    →Aerobic (Involves oxygen)

    →Anaerobic (Does not involve oxygen)


Glycolysis

GLYCOLYSIS

  • Breakdown of glucose

  • Happens in the cytoplasm of the cell

  • Doesn’t require oxygen

  • Process of going from Glucose to Pyruvic Acid and producing 2 ATP

Glucose → Pyruvic Acid + 2 ATP


Glycolysis1

GLYCOLYSIS


Glycolysis2

GLYCOLYSIS

Glucose → Pyruvic Acid + 2 ATP

AEROBIC PATHWAY

ANAEROBIC PATHWAY

CELLULAR RESPIRATION

FERMENTATION


Fermentation anaerobic

FERMENTATION : ANAEROBIC

  • No oxygen present

  • Process through which yeast cells obtain energy from glucose

  • Limited to microscopic organisms, unicellular organisms

  • Glucose breaks down into 2 three-carbon molecules called pyruvate

  • Pyruvate can then be broken down in two different pathways (identified by their waste products)

    →Alcoholic Fermentation

    →Lactic Acid Fermentation


Glycolysis fermentation

ALCOHOLIC FERMENTATION

Glucose Energy EthanolCarbon

Dioxide

C6H12O6→ 2 ATP + 2 C2H5OH + 2 CO2


Alcoholic fermentation

ALCOHOLIC FERMENTATION

6 Carbon Molecule

3 Carbon → Molecule

2 Carbon → Molecule


Glycolysis fermentation

FERMENTATION

  • Goal of fermentation: Produce ATP

  • What are the waste products in alcoholic fermentation? _________

  • How is the waste product of one organism useful to another?


Glycolysis fermentation

ALCOHOLIC FERMENTATION

  • Example 1 : Wine (yeast ferments the sugar in grape juice to make ethanol & CO2)

  • Example 2 : Yeast is used to make bread, the CO2 is what forms bubbles in the dough making it rise


Glycolysis fermentation

LACTIC ACID FERMENTATION

  • Fermentation can also be carried out by bacteria

  • Lactic acid fermentation is a process in which bacteria converts glucose to lactic acid

  • Example 1: Make products such as butter, yogurt and cheese.

  • Example 2: Lactic acid buildup in muscles

C6H12O6→ 2 Lactic Acid + 2ATP


Cellular respiration

CELLULAR RESPIRATION

  • Oxygen is essential to human life

  • Fermentation is inefficient

  • Glucose is broken down to produce ATP with the help of oxygen = AEROBIC

  • Breathing provides oxygen to the cells that use it to break down Glucose and make ATP


Where does cellular respiration take place

WHERE DOES CELLULAR RESPIRATION TAKE PLACE?

_________________

(Responsible for energy generation)

Enzymes responsible for controlling cellular respiration are part of the inner membrane


Cellular respiration1

CELLULAR RESPIRATION

  • Analogy with a fireplace

    • Mitochondria = Fireplace

    • Glucose = Log

    • Oxygen = Needed to burn log

    • Carbon Dioxide & Water = Released

    • ATP = Released as heat & light


Cellular respiration2

CELLULAR RESPIRATION

  • Breaks down glucose to put energy in the form of ATP

  • Respiration: breaking down 1 glucose molecules produces 38 ATP molecules

  • How many released in fermentation? ___

  • We recover 40% of energy of the glucose as ATP the rest is released as heat.


Cellular respiration3

CELLULAR RESPIRATION

C6H12O6 + 6 O2 → 6 H2O + 6 CO2 + 38 ATP + HEAT


  • Login