Microbiology chapter 3

Term
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Which of the following terms refers to a prokaryotic cell that is comma shape?
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Terms in this set (11)
Which of the following terms refers to a prokaryotic cell that is comma shape?
vibrio
Which bacterial structures are important for adherence to surfaces?
both capsules and finbriae
Which of the following cell wall components is unique to gram-positive cells?
teicgoic acid
Which of the following terms refers to a bacterial call having a single tuft of flagella at one end?
lophotrichous
Bacterial cell walls are primarily composed of which of the following?
peptidpglycan
Prokaryotic cells that are rod-shaped are called_______
bacillus
What is the direction of water flow for a bacterial cell living in a hypotonic environment? How do cell walls help bacteria living in such environments?
The solute concentration inside the cell exceeds the outside of the cell, so water will move by osmosis into the cell. This causes the cell to swell and potentially burst. They help maintain their shape and withstand changes during osmosis.
How do bacteria flagella differ from animal flagella when it comes to movement?
Animal flagella run in a bending movement while the bacteria run counter-clock wise and tumble clockwise.
The causative agent of botulism, a deadly form of food poisoning, is an endospore-forming bacterium called clostridium botulinim. Why might it be difficult to kill this bacterium in contaminated food?
the only way to kill and endospore is through fire, so if you were trying to get rid of it you would have to burn the food and it would be uneatable.
What are the disaccharides that make up a prokaryotic cell wall (peptidoglycan)?
NAG and NAM
What are three types of passive transport?diffusion, osmosis, facilitated diffusion