Question |
Answer |
Where is bacteria found? |
On all continents |
What does a virus have? |
it has DNA or RNA |
In what ways can bacteria enter your body? |
in the air you breathe, in a cut, in the food you eat |
How does bacteria get food? |
uses light to make energy and food, feeds on dead organisms, uses energy from chemical reactions |
Which element can some plants get from bacteria? |
nitrogen |
What can viruses do? |
they can replicate themselves |
How can you prevent the spreading of a viral disease? |
practice good hygiene, cover your mouth when you sneeze, stay away from those that are infected |
What do viruses need to survive? |
an organism to live on |
What are aerobes? |
bacteria that lives in places with an oxygen supply |
What are endospores? |
The thick wall produces to help pathogens survive in harsh conditions |
What is used to kill bacteria? |
an antibiotic |
What happens when a virus enters a host cell? |
Sometimes it is active and sometimes it is latent |
Where will you likely find archaea |
in hot springs |
Why is bacteria in a cow's stomach valuable? |
it breaks down cellulose |
The uses of bacteria to break down waste and pollutants into less harmful material is called…? |
bioremediation
|
What can antibiotics not help protect you from? |
viruses |
Why are viral infections hard to treat? |
they are always changing |
What is the second step in a viruses replication process? |
first it attaches to a host, then it inserts it genetic material |
How are bacteria cells different from plant and animal cells? |
they are smaller |
What allows bacteria to move? |
the flagellum |
What does bacteria do in humans? |
prevents harmful bacteria from growing, makes vitamin K, breaks food into smaller particles |
Peanuts and peas have nitrogen-fixing bacteria in growths called ….? |
nodules
|
What are the common shapes for viruses? |
crystal, cylinder and sphere |
What do viruses attack and destroy? |
cells |
What helps the bacteria stick to surfaces? |
pili |
What can viruses infect? |
animals, humans and plants |
What protects bacteria from drying out? |
the capsule |
What does nitrogen fixing bacteria do in plants? |
provides nitrogen to the plants |
How does bacteria reproduce asexually? |
through fission |
flagella |
whiplike tails that move bacteria |
anaerobic |
bacteria that can live without oxygen |
one celled organisms without membrane-bound organelles |
bacteria |
what stops the growth and reproduction of bacteria |
antibiotic |
What are endospores? |
thick-walled structures around bacteria |
What changes nitrogen from the air into forms that can be used by plants and animals? |
nitrogen-fixing bacteria
|
What is a pathogen? |
an organism that produces disease |
Be able to explain the benefits and harms of bacteria
|
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Explain bacterial conjugation and why is is important for bacterial survival? |
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