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22 Cards in this Set
- Front
- Back
- 3rd side (hint)
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_____ is the collection of controlled biochemical reactions that takes place within the cells of an organism.
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Metabolism
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What is the ultimate aim of microbial existence?
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To make more microbes
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___ is the building of molecules and structures.
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Anabolism
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Hint: Anabolic steroids BUILD bigger muscles.
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____ is the breakdown of larger molecules.
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Catabolism
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One function of ____ are marshmallows burned in a fire. This releases the energy stored in their chemical bonds but does not yield energy useful to the organism.
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metabolism
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____ are catalysts that lower the activation energy needed for an enzyme to proceed.
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Enzymes
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The most common source of energy used by any cell is ____.
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glucose
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The products of the final reaction for carbohydrate catabolism and energy production are ___ and ___.
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CO2; H2O
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The ____ suggests that in the past, mitochondria were free-living bacteria which formed a mutually beneficial relationship with another organism.
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endosymbiotic theory
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_____ also called fermentation does not use O2 as a final electron acceptor, but rather organic molecules.
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Anaerobic metabolism
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_____ are able to synthesize all needed carbon compounds from scratch using CO2 as starting material.
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Autotrophs
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____ use proteins, lipids, and carbs to synthesize into useful molecules.
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Heterotrophs
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_____ are organisms requiring O2 as the final electron acceptor in aerobic respiration.
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Obligate aerobes
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_____ are organisms for which O2 is a deadly poison.
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Obligate anaerobes
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____ can derive energy from both aerobic metabolism and anaerobic metabolism (fermentation).
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Facultative anaerobes
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This includes E.coli
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_____ use anaerobic metabolism but can tolerate presence of O2, since they have detoxifying enzymes.
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Aerotolerant anaerobes
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This includes lactobacilli (cucumbers into pickles, milk into cheese)
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True/False
Pathogens grow best at an acidic level and at low temps. |
False
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Pathogenic organisms grow best at or near 37 c and near PH 7
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True/False
It takes about 20-30 minutes for a bacterium to replicate itself under ideal conditions. |
True
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Bacteria grow ___, that means the population doubles every 20-30 min.
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logarithmically
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Cultures grow exponentially during the log phase.
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The ____ is a series of redox reactions that passes electrons from one membrane bound carrier to another and then to a final electron acceptor.
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electron transport chain
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The ultimate goal of metabolism is to ___.
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allow the organism to reproduce
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Any given catabolic pathway can produce ____.
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ATP
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