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Cellular Respiration

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Cellular Respiration. ATP = A denosine T ri p hosphate. What is it? Energy molecule How? Energy stored in chemical bonds When ATP is broken apart, energy is released Why? ATP used for many activities Muscles, heart, translation, mitosis, active transport, etc….

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Presentation Transcript
atp a denosine t ri p hosphate
ATP = Adenosine Triphosphate
  • What is it? Energy molecule
  • How?
    • Energy stored in chemical bonds
    • When ATP is broken apart, energy is released
  • Why? ATP used for many activities
    • Muscles, heart, translation, mitosis, active transport, etc…
cellular respiration overview
Cellular Respiration Overview

Defined: Conversion of glucose into ATP

Performed by the mitochondria

Exergonic reaction: releases energy

Who: All life

End Result: ATP

cellular respiration stage 1 glycolysis
Cellular Respiration:Stage 1 - Glycolysis
  • Defined: breakdown of glucose (6C) into two 3C molecules
  • Gain of 2ATP molecule
  • Anaerobic process (no O2 required)
slide5
Glucose (6 carbon molcule)

ATP

ATP

ATP

ATP

ATP

ATP

cellular respiration with oxygen present stage 2 aerobic respiration
Cellular Respiration with oxygen present: Stage 2 – Aerobic Respiration
  • Defined: Creating ATP with the help of oxygen
  • Two 3C molecules & oxygen recreate ATP
  • 36 ATP molecules created
  • CO2 waste created
  • All total: 1 glucose molecule = 38 ATP molecules
cellular respiration without oxygen present stage 2 anaerobic respiration
Cellular Respiration without oxygen present: Stage 2 – Anaerobic Respiration

1) Lactic Acid Fermentation: ATP created without oxygen (enzymes are used)

Byproduct: Lactic acid

Lactic acid buildup causes sore muscles

Much fewer ATP molecules are created (2 ATP)

cellular respiration without oxygen present stage 2 anaerobic respiration1
Cellular Respiration without oxygen present: Stage 2 – Anaerobic Respiration

2) Alcoholic Fermentation: ATP and alcohol are created from glucose without oxygen

Performed by plants and microorganisms

Glucose, ADP, and enzymes are joined into ATP

Oh by the way…

Alcohol waste is created

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quick review
Quick Review
  • ATP is the energy molecule used by cells
  • When ATP is broken into ADP, energy is released
  • ATP can be rejoined through cellular respiration
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