Summary: Microbial Cell Structure And Function
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Read the summary and the most important questions on Microbial cell structure and function
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1 Week 1
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1.1 Cells, membranes & transport
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What does morphology not predict?
Physiology, ecology, phylogeny etc -
What selectieve forces are involved in maintaining morphology?
Swimming motility, gliding motility and optmization of nutrient uptake -
What is the function of the cytoplasmic membrane?
It is a permeability barrier, protein anchor and helps in energy conservation -
What kind of proteins does the outer surface of the cytoplasmic membrane interact with?
Proteins that bind substrates or process large molecules for transport -
What kind of proteins does the inner surface of the cytoplasmic membrane interact with?
Proteins involved in energy-yielding reactions and other important cellular functions -
What do bacteria use active transport for?
To accumulate nutrients from a low external concentration against a concentration gradient -
What are ATP-binding cassete (ABC) transporters?
ATP drives the uptake and it requires transmembrane and ATP-hydrolyzing proteins -
How does SEM work?
The scattered electrons that bounce back atfer scanning with an electron beam, are collected by a detector and an image is produced -
1.2 Anammox bacteria
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What is the function of anammox?
It removes fixed nitrogen in the form of ammonium from the ocean -
What unique metabolism intermediate do anammox bacteria make?
Hydrazine (HZS)
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