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TRUE
FALSE
TRUE
FALSE
Coccus
Bacillus
Pleomorphic
True
False
Coccus
Bacillus
Pleomorphic
It selectively allows some molecules to pass into the organism
It prevents movement of molecules out of the organism
It is the site of protein synthesis
All of the above
Self-replicating segment of double stranded DNA
Self-replicating segment of single stranded RNA
A bacterial chromosome
They are shaped like bent rods
They have a corkscrew shape
They do not have just one shape
They are not either bacilli or cocci.
Help move cells to optimal nutrient levels.
Store oxygen for growth anaerobically
Are bounded by a lipid bilayer membrane.
Are bounded by a membrane impervious to gas
Help cells attach to metal objects.
Help cells to magnetically attach to each other
Help cells to float on the surface of fresh water ponds
Help cells to orient in the earth's magnetic field
Two 40S subunits
A 50S and a 30S subunit
A 40S and a 30S subunit
A 50S and a 20S subunit.
Have a second, outer membrane that helps retain the crystal violet stain
Have multiple layers of peptidoglycan that help retain the crystal violet stain
Have a thick capsule that traps the crystal violet stain
Have a periplasmic space that traps the crystal violet.
LPS is larger than most membrane phospholipids
Lipoproteins stretch the outer membrane
Porin proteins establish holes in the outer membrane.
The core polysaccharide spans the lipid bilayer
Maintain the shape of the cell
Protect the cell from osmotic pressures
Prevent ions from diffusing away from the cell
Block the effects of antibiotics like penicillin
Attach bacteria to various surfaces
Cause bacteria move through fluids
Sense changes in nutrient concentration
Are pathways for the secretion of exoenzymes
Monotrichous
Amphitrichous
Lophotrichous
Peritrichous
Most of their length consists of a hollow, rigid protein tube
They are constructed largely of a single protein called flagellin
They spin like wheels, either clockwise or counterclockwise
They use cytoplasmic ATP as their primary energy source.
Steering toward better growth conditions.
Making long, uninterrupted runs when conditions are good.
Frequently stopping and tumbling to better sense good conditions.
Stopping movement when conditions are good
Maintain the shape of the cell
Protect the cell from osmotic pressures
Prevent ions from diffusing away from the cell.
Block the effects of antibiotics like penicillin
Allow the bacterium to make hundreds of "seeds" to spread on the wind
Help the bacterium to differentiate into faster growing stages of bacteria
Allow the bacterium to survive the absence of oxygen
Allow the bacterium to survive extended periods of heat or dryness.