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17 Cards in this Set
- Front
- Back
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Streptococcus pneumoniae lack electron transport chains. Therefore, S. Pneumoniae generates ATP via____ |
Fermentation |
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The breakdown products of protein can enter which of the following metabolic pathways? |
Glycolysis, TCA cycle, and Pentose Phosphate Pathway. |
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A culture of bacteria is breaking down sugar to yield energy. This is best described as _____. |
Catabolism |
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The three central metabolic pathways -glycolysis, the pentose phosphate pathway, and the tricarboxylic acid cycle (TCA cycle)- modify organic molecules to generate what three useful components for the cell? |
ATP, Reducing Power, and Precursor Metabolites |
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When polysaccharides are broken down, their breakdown products can be oxidized for energy by entering which of the following metabolic pathways? |
Glycolysis |
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Anabaena is a genus of filamentous cyanobacteria commonly found in aquatic environments, where it harvests energy from sunlight and fixes both carbon dioxide and nitrogen. Knowing this, how would you classify Anabaena? |
Photoautotroph |
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A population of bacteria is breaking down some lipids to support microbial growth. Where do the products of lipid breakdown enter the central metabolic pathway? |
Glycolysis and TCA cycle |
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RNA polymerase |
Generates RNA |
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DNA polymerase |
Generates DNA |
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DNA ligase |
Joins DNA fragments |
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ATP synthase |
Generates ATP |
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Why would an organism ferment? |
The organism lacks an electron transport chain, a suitable inorganic terminal electron acceptor is not available, and to replenish the supply of NAD+. |
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What three general products of the central metabolic pathway does a cell require to carry out biosynthesis? |
ATP, NADPH, Precursor Metabolites |
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Cell's Metabolism |
Total of all chemistry going on inside that cell |
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Catabolic Reaction |
A larger reactant molecule is broken down while energy is released into smaller products. |
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Anabolic Reactions |
Any reactions where small molecules are put together to form a larger molecule. Requires energy |
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Nutrient Molecules |
A carbon backbone (raw material) and covalent bonds (energy) |
