prokaryotic, single celled, they can be consumers, producers, or decomposers, they can be round spiral, or round shaped
100
What activates the body's natural defenses? virus's can also be called what because of it's ability to harm the cells they enter? An example of this would be inhaling infected drops of moisture.
a domain made up of prokaryotes that are usually have a cell wall and usually reproduce by cell division.
100
What is the difference between AEROBIC and ANAEROBIC?
Aerobic is an organism that can exist in oxygen. Anaerobic is an organism that cannot exist in oxygen
200
The part of the cell that contains the chromosomes (DNA)
the nucleus
200
How does bacteria reproduce? is their reproduction asexual or sexual?
they reproduce by binary fission. They reproduce asexually.
200
when a virus takes over a cell, what part of its structure takes over the cell's function? an example of this would be touching and infected person or bring bitten by an infected animal. The best treatment for most viral infections is
question 4) genetic material
question 5) direct contact
question 6) bed rest
200
what is archaea?
a type of "ancient" bacteria that is known to live in extreme conditions.
200
What is the name of the process in which viruses reproduce
the lytic cycle
300
what helps bacteria move?
the flagella/flagellum
300
What are characteristics of viruses?
they are non-living, made up of protein coat and genetic material, smaller than bacteria, and do not perform any life functions.
300
A virus's proteins are important because they help the virus do what to the host? A virus can only multiply when inside a what? A virus that immediately takes over the function of the host cell after attaching.
question 7) attach
question 8) living cell
question 9) active virus
300
What is a prokaryote? what is a eukaryote?
part a) a group of cells that has no nucleus, no membrane bound organelles, and they are single celled
part b) a group of cells that can be single or multi cellular and they have a nucleus with a membrane
300
what does ubiquitous mean?
it means everywhere
400
What is the jelly like substance in a cell?
cytoplasm
400
how do viruses reproduce?
they reproduce by replicating themselves in a host cell.
400
viruses are considered to be what because they do no show all characteristics of life? Location within the virus where genetic material can be found? What directly provides energy for a virus?
question 10) non living
question 11) the core
question 12) host
400
what is an infectious disease? what is a noninfectious disease?
part a) a virus that is contagious and can infect other organisms (ex. cold, the flu, etc.)
part b) a virus that IS NOT contagious and cannot infect other organisms (ex. stomach virus)
400
why does a virus need a host cell?
they need a host cell because they aren't capable of reproducing on their own. They need a host cell in order to reproduce or replicate themselves.
500
what is the outermost layer of the cell? what is the next layer?
the cell membrane. the cell wall.
500
what are the steps of binary fission? how do bacteria exchange DNA? What happens when bacteria exchange DNA?
part a) genetic information is copied, cell membrane begins to split, new cell wall is formed, to identical bacteria cells are formed
part b) exchange DNA by conjugation
part c) a plasmid is transferred from one bacteria to another
500
a virus's ability to enter cells make them useful in the study of what? are not useful on viruses. A virus that can become part of the host cell's genetic material.