Bacteria Basics
What are bacteria?
Single-celled organisms, prokaryotes, living
are bacteria or viruses larger in size?
bacteria
This process describes how one bacteria copies its DNA and splits
binary fission
what are 2 ways bacteria can enter the human body to cause infection?
natural openings, skin wounds
Bacteria belong to this cellular category because they lack a membrane-bound nucleus
prokaryotes
Unlike bacteria, viruses require this in order to reproduce.
host
What does it mean to say there was a population growth of the bacteria?
increase in the number of bacteria not the physical size of the bacteria
true or false, all bacteria are harmful
false
What is a scientific model?
This is a representation used by scientists as a tool to explain how or why something works the way it does.
What medication is used to treat bacterial infections?
antibiotics
What is exponential growth?
resources are unlimited, population grows continuously
where are bacteria found?
everywhere
Why did zach start to have hallucinations if he started off with knee pain?
the bacteria grow quickly in the body and spread to other parts of his body
What is the outer layer of a virus called?
capsid, protein coat
what is carrying capactiy?
the population stops growing due to limiting resources.
which type of cell transfer requires energy from the cell to move molecules?
active transport
How can bacteria cause infections?
they enter our body and they grow exponentially which causes our bodies to react and causes symptoms
Which viral reproduction hides it's DNA in the host's DNA?
lysogenic
Name three environmental factors that directly affect the rate at which bacteria grow.
temperature, space, nutrients
what are bacteriophages
viruses that attack bacteria cells