Cellular Respiration

Which of the following organisms can undergo cellular respiration?

Write the chemical reaction for cellular respiration

Describe the biochemical pathways involved in cellular respiration

Identify the inputs and outputs of each biochemical pathway

Aerobic Anaerobic Glycolysis Krebs cycle Oxidative electron transport Mitochondrial matrix Inner membrane of Mitochondria

Definition: The process cells use to breakdown complex organic molecules for the production of energy

Chemical ReactionGlucose + O2 CO2 + H2O + energy

Animation

Write down at

least one key point

you gained from

the Overview

Animation:

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Three major pathways in this process:◦ Glycolysis◦ Krebs cycle

also known as the Citric Acid Cycle◦ Oxidative Electron Transport

Oxidative Electron Transport◦ located in inner membrane

Krebs cycle ◦ located in mitochondrial matrix

(thick liquid inside inner membrane)

Matrix

Oxidative Electron Transport In the Inner Membrane

Main function ◦ to break down Glucose and produce pyruvate

Takes place outside the mitochondria ◦ in the cytoplasm of the cell

Makes 2 ATP molecules Pyruvate enters mitochondria and modified

◦ Into Acetyl CoA for next step

Animation

Write down at

least one key point

you gained from

the Glycolysis

Animation:

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Main function ◦ break down Acetyl CoA to CO2

◦ produce NADH and FADH2

Carriers of high energy electrons Located in the mitochondrial matrix Makes 2 ATP molecules The CO2 you exhale is made in this pathway

Animation

Write down at

least one key

point you gained

from the Krebs

Cycle Animation:

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Main Function◦ Accepts energized electrons from NADH and FADH2

◦ Passes those electrons to O2

◦ O2 is ultimate electron acceptor producing H20

Located within inner membrane of mitochondria Electron flow provides energy

◦ for ATP production

Animation

Write down at

least one key

point you gained

from the Oxidative

Electron Transport

Animation:

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Photosynthetic Electron Transport

PSETOxidative Electron Transport

OET

Electron donor◦ H2O

Electron Acceptor◦ NADP+

Electron donor◦ NADH, FADH2

Electron Acceptor◦ O2

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Write a note to a friend or absent

classmate explaining 3 differences

between Glycolysis, Krebs Cycle and

Oxidative Electron Transport in cellular

respiration