Do Now Classify the following organisms as as chemoautotrophs, chemoheterotrophs, photoautotrophs, or photoheterotrophs: 1. Clostridium bacteria break down cellulose for carbon and energy 2. Desulfovibrio breaks down organic acids for energy and carbon. 3. Chlorobium does photosynthesis for energy and carbon, but uses H2S instad of H2O
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Do Now Classify the following organisms as as chemoautotrophs, chemoheterotrophs, photoautotrophs, or photoheterotrophs: 1.Clostridium bacteria break down.
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Do NowClassify the following organisms as as
chemoautotrophs, chemoheterotrophs, photoautotrophs, or photoheterotrophs:
1. Clostridium bacteria break down cellulose for carbon and energy
2. Desulfovibrio breaks down organic acids for energy and carbon.
3. Chlorobium does photosynthesis for energy and carbon, but uses H2S instad of H2O
4. Chromatin does photosynthesis for energy and carbon without producing oxygen.
Observations
• Make your week 2 observations of your Winogradsky columns. Be sure to measure!!!
• Don’t lose your records – we still have 4 weeks to go.
• You have 10 minutes maximum.
Introduction to Bacteria
• There are a RIDICULOUS number of different types of bacteria
They Do Anything
• Trying to describe the diversity of bacteria is like trying to describe the diversity of eukaryotes: you and an Euglena live very different lives!
One Way is with Oxygen Use – Anaerobic or Aerobic?
• Anaerobic organisms do not use oxygen.
• Aerobic organisms require oxygen
• Facultative anaerobes will use oxygen if it is available
• Microaerophilic organisms need a little oxygen
• OXYGEN IS TOXIC!!!
Bacteria = Diversity
• Bacteria live just about everywhere.
• Some are chemotrophs, others are autotrophs, and there’s heterotrophs and phototrophs…