Bacteria, Virius, Protist and Fungi Test Flashcards
How do bacteria cause disease?
a. by entering and bursting cells
b. by maintaining homeostasis
c. by reproducing very quickly
d. by destroying cells and releasing toxins
d. by destroying cells and releasing toxins
Bacteria that cause disease are called
a. viruses
b. pathogens
c. prophages
d. antibiotics
b. pathogens
Which of the following will NOT prevent many bacterial infections?
a. allowing foods to cool completely before refrigerating
b. washing hands and surfaces with soap and water
c. storing food in a refridgerator
d. heating objects to very high temperatures
a. allowing foods to cool completely before refrigerating
An unknown disease or a well-known disease that suddenly becomes harder to control called
a. a pathogen
b. an emerging disease
c. an antibiotic
d. a viral disease
b. an emerging disease
What might people do to prevent the development of more superbugs?
a. They should use antibiotics only when necessary
b. They should develop stronger antibiotics and use them often
c. They should use stronger disinfectants
d. They should not get vaccinated
a. They should use antibiotics only when necessary
Viral diseases can be
a. treated with antibiotics and prevented with vaccines
b. treated with vaccines and prevented with antibiotics
c. prevented with antibiotics but not treated with vaccines
d. prevented with vaccines but not treated with antibiotics
d. prevented with vaccines but not treated with antibiotics
Viral infections can be prevented by vaccines, which are
a. chemicals that destroy viral DNA
b. substances that cause viral proteins to misfold\
c. drugs that control the growth and reproduction of viruses
d. preparations of weakened or killed viruses
d. preparations of weakened or killed viruses
What are protists?
a. prokaryotes that are part of Domain Archaea
b. eukaryotes that are not part of the plant, animal and fungi kindgoms
c. single-celled organisms that belong to the plant, animal and fungi kingdoms
d. single-celled eukaryotes that are part of the plant and fungi kingdoms
b. eukaryotes that are not part of the plant, animal and fungi kindgoms
Most protists are
a. prokaryotes
b. single-celled
c. fungi
d. algae
b. single-celled
Scientists once classified protists based on whether they had plantlike, funguslike, or animal-like characteristics. Why is this system problematic?
a. Nearly all protist are actually members of the plant, fungi, or animal kingdom
b. Most protists do not have any of these types of characteristics
c. Protists are too similar to each other to be classified in different groups
d. Some protists have characteristics of more than one group
d. Some protists have characteristics of more than one group
Based on Figure 21-1, which of the major groups of protists is MOST closely related to plants?
a. Amoebozoa
b. Excavates
c. Rhodophyta
d. Choanozoa
c. Rhodophyta
How are protists related to other eukaryotes?
a. Today’s protists and plants, fungi, and animals have an ancient common ancestor
b. Protists evolved from bacteria while the other eukaryotes evolved from archea
c. Today’s protists gave rise to plants, fungi and aniamls
d. Today’s protists arose from ancient plants, fungi, and animals
a. Today’s protists and plants, fungi, and animals have an ancient common ancestor
Modern protists classification systems
a. place protists in the plant, fungi, and animal kingdoms
b. change very little because protists are not very diverse
c. show that today’s protists are ancestors of plants, animals, and fungi
d. will change as scientists learn more about protists
d. will change as scientists learn more about protists
What structures do protists such as amoebas use for movement?
a. pseudopods
c. cilia
c. flagella
d. spores
a. pseudopods
The organism shown in Figure 21-2 is an example of?
a. a flagellate
b. a ciliate
c. an amoeba
d. a spore-forming protist
a. a flagellate
During what process do two protists exchange genetic material?
a. cell division
b. meiosis
c. conjunction
d. mitosis
c. conjunction
Based on the Plasmodium like cycle shown in Figure 21-4 , what would happen if the mosquitoes disappeared?
a. Plasmodium merozoites would form, but gametes would not form.
b. The Plasmodium life would continue, and humans would become the only host
c. Plasmodium infection would continue because it will be passed from person to person.
d. The plasmodium life cycle would be interrupted, and the infection could not be passed on.
d. The plasmodium life cycle would be interrupted, and the infection could not be passed on.
All fungi are
a. heterotrophic prokaryotes
b. heterotrophic eukaryotes
c. autotrophic prokaryotes
d. autotrophic eukaryotes
b. heterotrophic eukaryotes
A mushroom is a
a. fruiting body
b. lichen
c. mycelium
d. hypha
a. fruiting body
The tangled mass that makes up the part of fungus that is below the soil is the
a. mushroom
b. fruiting body
c. mycelium
d. chitin
c. mycelium
An important role of fungi in an ecosystem is
a. performing photosynthesis
b. breaking down dead organisms
c. making alcohol
d. killing bacteria
b. breaking down dead organisms
In a mycorrhizal relationship, what benefit does the plant get from the fungus?
a. an energy source
b. aid in seed dispersal
c. products of photosynthesis
d. aid in the absorption of water and minerals
d. aid in the absorption of water and minerals
Lichens play an important role in soil formation because they
a. prevent rocks from eroding
b. are often the first organisms to enter barren environments
c. help plants get nutrients and water from soil
d. increase the surface area of roots
b. are often the first organisms to enter barren environments
Based on Figure 20-5, what is the student probably trying to test?
Which disinfectant works best
