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Portage Microbiology Module 2 |Questions with 100% Correct Answers | Updated & Verified | 2024
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Portage Microbiology Module 2 |Questions with 100% Correct Answers | Updated & Verified | 2024
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Portage Microbiology Module 2|Questions with 100% Correct Answers |
Updated & Verified | 2024
tricarboxylic acid (TCA) cycle ✔✔central pathway of respiration/requires an additional coenzyme
similar to NAD called flavin adenine dinucleotide (FAD)
products of TCA ✔✔2 ATP in total (one for each pyruvate processed) and an abundance of reduced
electron carriers: NADH and FADH2
primary function of the TCA cycle ✔✔production of these reduced electron carriers (NADH and
FADH2)/the transfer of these electrons will fuel the generation of ATP via the electron transport system
electron transport chain ✔✔a continuation of cellular respiration and can proceed either aerobically
or anaerobically
anaerobic respiration ✔✔less efficient and yields fewer ATP molecules than aerobic respiration
mitochondria ✔✔as electrons are transferred from NADH/FADH2 to terminal electron acceptors (O2;
aerobic respiration), energy is released and captured by electron acceptor proteins located in the inner
membrane of....
protons ✔✔electrons are then passed down a chain of electron acceptors (thus the name) causing
___________ (H+; positive charge) to be pumped out of the membrane, causing a strong differential
across the mitochondrial membrane,
, proton motive force ✔✔drives H+ back through the ATP synthase complex, also located in the
membrane, resulting in the production of up to 34 molecules of ATP
polysaccharides ✔✔typically molecules that are too large to be transported directly across the plasma
membrane. Instead microbes must secrete enzymes capable of degrading the polymer into small, more
manageable subunits
direct contact ✔✔________________ w/ a polysaccharide is often required by the microorganism to
ensure maximal absorption
proteins ✔✔must also be broken into smaller subunits or individual amino acids by enzymes
protease ✔✔an enzyme that catabolizes protein
amino acid ✔✔a rich source of nutrients as they are a source not only of carbon and energy but
also nitrogen and sulfur
lipids ✔✔rich in energy, often having many reduced carbon molecules
lipase ✔✔separate the fatty acid chains from the glycerol backbone
lipid backbone ✔✔processed for carbon and energy
fatty acid chain ✔✔degraded via the β-oxidation pathway
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