Lab 9 Quiz Questions
What is used to allow bacteria to grow?
Agar
What is the name for rod-shaped bacterial cells?
Bacilli
Prokaryotes are classified in the Domains: __________ and ___________ and in the Kingdoms: ___________ and ____________.
Bacteria, Archaea; Eubacteria, Archaebacteria
What is the name for spherical bacterial cells?
Cocci
What does SIZE of bacteria colonies imply?
How large spots or formations are.
Bacterial cell walls are composed of ________________.
Peptidoglycan
What are a few examples of what is found in a bacteria cell?
Plasma membrane, cell wall, capsule, flagellum, plasmid, cytoplasm, circular DNA, ribosomes, fimbriae.
What is the name for spiral-shaped bacterial cells?
Spirilla
What is heat fixing?
That is a basic staining technique used to kill most of the bacteria in a smear so that they stick to the slide, makes their cytoplasmic proteins coagulate, and then be able to retain basic stains. IN OTHER WORDS, the process of using heat to stain bacteria onto a slide.
What makes fungi different from bacteria?
The colony looks "fuzzy" or "furry."
What does SHAPE of bacteria colonies imply?
The way bacteria colonies produce a form on agar.
What does ELEVATION of bacteria colonies imply?
The way bacteria is seen from the side.
What does MARGIN of bacteria colonies imply?
The way bacteria looks from an above perspective.
What makes a bacteria cell different from animal and plant cells?
They are prokaryotes. Have a unicellular layout.
Acquiring DNA can happen through two ways: ________________ and __________________. What do both imply?
Transformation, conjunction; Transformation happens when a bacterial cell takes in new DNA from the environment. Conjunction happens when DNA (plasmids) are transferred from a donor cell to a recipient cell. Both involve horizonal gene transfer.
What is vertical gene transfer?
When a bacterial cell goes through binary fission, it is transferring its genes from the parent to the offspring.
What is horizontal gene transfer?
When a bacterial cell receives new DNA from another organism or from the environment.
What's binary fission?
When the parent cell first makes an exact copy of its DNA and then the cell divides into two daughter cells that are genetic clones of the parent.
The prefix staphylo means 'occur in ________________'
bunches
The prefix strepto means 'occur in ______________'
chains
The prefix tetra means 'occur in groups of ________________'
four
The prefix diplo means 'occur in groups of _____________'
two
