Questions Ch.18-19 Flashcards
What do viruses infect?
Humans and some animals
What is a virus composed of?
DNA, capsid, and maybe lipid
What pathogen is made out of a single strain of RNA and can only infect plants?
Viroid
Pathogen made out of folded proteins that affect brains.
Prion
What kind of infection kills the host bacteria?
Lytic
This kind of infection does not kill the host bacteria, it mixes with its DNA to duplicate.
Lysogenic
Name of the viruses that only infect bacteria.
Bacteriophages
What’s the name of a substance made out of a weakened virus that is used to actívate the body’s immune response?
Vaccine
Part of the bacteria that looks like hair and is all around the cell wall.
Pili
This organelle helps a cell to move and looks like a tail.
Flagellum
What are the three types of protists?
Animal-like, plant-like, fungi-like
How can you also call animal-like protists?
Protozoa
What are three ways that protozoa can move?
By flagella, pseudopods, and cilia
The difference between animal-like protists and real animals is that this protists are…
Single-celled
Plantlike protists and plants are both photosynthetic, but plants have…
Roots, stems, and leaves
Funguslike protists and fungi are both…
Heterotrophs
Fungislike protists, unlike real fungi, can…
Move
What are the 5 main steps of the scienctific method?
Observation, question, hypothesis, experiment and results
How does the scientific method start?
By observing
After an observation is made, the scientist asks a…
Question
To answer this question, the scientist provides a…
Hypothesis
To test the hypothesis, scientists create…
An experiment
After the experimentation, these are gathered.
Results
Mention three different pathogens.
Bacteria, virus, viroid, fungi, and prion
