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16 Cards in this Set
- Front
- Back
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Metabolism
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sum of all the reactions occurring within a cell
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Anabolism v. Catabolism
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Anabolism - “building up”;
ENERGY IN Catabolism - “breaking down”; ENERGY OUT |
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Types of media
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- Differential medium
- Enriched/complex medium (undefined) - Selective medium - Chemically defined medium (synthetic) |
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What is a media?
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A food provider that allows growth of organisms
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Chemically defined medium (synthetic)
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Measured amounts of pure chemicals
Ex: glucose minimal salts agar |
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Enriched/complex medium (undefined)
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Dead plants and animals grinded up into a powder
Ex: Trypicase soy agar (TSA) |
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Selective medium
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- Contains substances that inhibit the growth of unwanted organisms
- Gram-negatives are best grown Ex: Eosin-methylene blue (EMB) – Maroon plate |
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Differential medium
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Contain indicators that produce a color
Ex: EMB Ex: sheep blood agar |
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ATP
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adenosine triphosphate (chemical molecule with three phosphates attached)
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Types of Bacterial Energy systems
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Photosynthesis:
Respiration: Fermentation: |
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Photosynthesis:
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sunlight + CO2 + H2O glucose + O2
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Respiration:
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glucose + O2 ATP + CO2 + H2O (mostly aerobes)
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Fermentation:
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sugar (food) + w/o O2 little ATP + a lot by-products (anaerobes)
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DNA
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chemical molecule that contains a sequence of letters. (All cells have DNA)
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Genes
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DNA are made up of genes; vehicles of DNA
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Chromosomes
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file cabinets (bacteria usually have 1 chromosome) (Humans normally have 46 chromosomes)
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