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From Karnataka Open Educational Resources
→Teaching Outlines
2. PUC Ist year and 2nd Year Text Books.
2. PUC Ist year and 2nd Year Text Books.
==='''Concept Bacteria''' ===
==='''Metabolism in bacteria'''===
==='''Effects of Bacteria'''===
= Teaching Outlines =
= Teaching Outlines =
1. Habitat and size of Bacteria.<br>
1. Habitat and size of Bacteria.<br>
2. Classification of bacteria (based on shapes)<br>
2. Classification of bacteria (based on shapes)<br>
3. Structure of bacteria.<br>
3. Structure of bacteria.<br>
4.Metabolism in Bacteria( Nutrition and Reproduction)<br>
5. Effects of Bacteria
'''Episomes'''<br>
'''Episomes'''<br>
In addition to the DNA in some bacterial cells an additional circular DNA is present in the cytoplasm. It is called as episome or plasmid.<br>
In addition to the DNA in some bacterial cells an additional circular DNA is present in the cytoplasm. It is called as episome or plasmid.<br>
''''''Metabolism in bacteria''''''<br>
4. '''Teaching outlines''':<br>
Mode of Nutrition:<br>
Nutrition,-- bacteria are either '''autotrophs''' or '''heterotrophs'''.<br> Autotrophic bacteria are again divided into two groups;<br>
(i) '''Photoautorophs''' trap solar energy for utilization CO2 and use H2S in place of H2O. Thus, O2 is never released.<br>
(ii) '''Chemoautotrophs''' obtain energy from chemical by oxidation process for food synthesis and carbon from CO2.<br> This type include nitrifying bacteria, sulphur bacteria, iron bacteria etc.<br> Heterotrophs are also of two types- Photoheterotrophs and chemoheterotrophs. <br>Photoheterotrophs use light as energy source and an organic compound as source of carbon, e.g. Green and purple bacteria. <br>Chemoheterotrophs use chemical as energy and carbon may also be obtained from the same organic substances.<br> Most of the bacteria belong to this type.
===Learning objectives===
===Learning objectives===
