Bacteria
What is the simplest form of life that is a single celled organism without a nucleus?
bacteria
How is a bacteria cell different from a plant cell?
no nucleus, has a capsule- second cell wall and layer of protection, flagellum help it move
What is a tiny disease causing particles that are not alive and have DNA/RNA with a protein around it and divide and survive on a host?
virus
How do bacteria reproduce?
cell division, splits, doubles and occurs quickly
What can make their own food using sunlight or other chemicals from the environment?
autotroph
Why are bacteria important?
put oxygen into atmosphere, help digest food, help make food, convert nitrogen for plants to use
Can you use antibiotics on a virus?
Are viruses alive?
no
What gets energy from eating other organisms?
heterotroph
What breaks down dead and decaying matter?
decomposers
How does a virus make you sick?
finds a host cell, divides in the host cell, has spikes which attach and enter cells, mutate and change over time
Are bacteria alive?
yes
About how long has bacteria lived on earth?
About 3.5 billion years
How do bacteria become resistant to antibiotics?
If you do not finish it, strong ones can mutate, body resistance to same antibiotic
What is a living organisms where a virus lives?
Host
Does bacteria or viruses rely on cells?
viruses
How are bacteria classified?
shape, (bacillus-rod, cocci- round, spirilla- spiral)
Why are bacteria good for you?
digest food in intestines, clean up oil spills, make food like cheese and yogurt, gives nutrients to plants
How can you protect yourself from virus'?
immune system creates antibodies to kill virus, vaccines, wash hands
What is strep, black plague and e.coli an example of?