1) Decomposers
2) Parasitic
3) In symbiotic relationships with plants and animals
300
How do animal-like protists "eat"?
Move around to obtain food; engulf their food or absorb pre-digested food.
300
What two parts of classification do we use to scientifically name an organism?
Genus and species
400
When do viruses cause symptoms?
When they replicate so many times that the host cell is killed.
400
How do bacteria get their nutrition?
1) Autotrophs (make their own food)
OR
2) Heterotrophs (use other organisms to get nutrition)
400
How does fragmentation work?
A piece of hyphae is broken off and grows into new fungus
400
How do most fungi-like protists "eat"?
Decomposers; absorb nutrients from other living things.
400
What is Integrated Pest Management (IPM)?
A combination of cultural, biological, genetic and chemical methods used to control pests.
500
Describe the lytic cycle.
1) Virus attaches
2) Virus enters cell
3) Replication occurs
4) New viruses are assembled.
5) Viruses are released and the host cell dies.
500
Describe the process of conjugation (sexual reproduction) in bacteria.
1) Two cells come close together.
2) Mini bridge (sex pilus) is created.
4) DNA is swapped between the two cells.
5) Cells separate and undergo binary fission.
500
What are 2 important uses for fungi?
- They are decomposers – recycle nutrients
- Consist of yeast – used to make bread, wine and beer
- They can be eaten or make food that we eat… like:
Example: eat mushrooms
Example: Gorgonzola cheese is made using fungi
- Can be used to make antibiotics (Penicillium)
500
Name one reason why protists are important.
Bacteria-eating protists purify our drinking water
Algae
-Helps maintain healthy aquatic ecosystem
-Can be used as food for humans
-Can be used as fertilizer
-Helps make petroleum (brown algae)
-Provide 2/3 of the world’s oxygen!
Used to make agar (medical)
500
Why are viral vectors used in gene therapy? When are they not effective?
Used to treat/prevent diseases such as AIDS, cancer, liver complications and skin problems.
Not effective in cells that do not multiply (ie. spinal cord and brain)