Unit 10 Bio Test Flashcards
Plasmodium depends on the mosquito during its life cycle… what would happen if mosquitoes disappeared?
the plasmodium life cycle would be interrupted and the infection could not be passed on
Which phylum contains the only fungi with flagellates spores?
chytridiomycota
Which two of the following genera have members that can invade the human immune system by frequently changing their surface proteins?
1) plasmodium
2) trichonympha
3) trypanosoma
4) zooxanthellae
1,4
What makes certain red algae appear red?
they possess pigments that reflect and transmit red light
Lichens are symbiotic associations of fungi and ________.
either cyanobacteria or green algae
Which of the following is true of fungi?
A) like protists, they are eukaryotic
B) like so prokaryotes, they are autotrophic
C) like animals, they lack cell walls
D) like plants, they carry out photosynthesis
A) like protists, they are eukaryotic
The fungi are similar to ________ because _____________________.
1) bacteria
2) they can both go through extracellular digestion by releasing digestive enzymes
During what process do two protists exchange genetic material?
conjugation
In both lichens and mycorrhizae, what does the fungal partner provide to its photosynthetic partner?
water and minerals
Both fungus-farming ants and their fungi can synthesize the same structural polysaccharide from glucose. What is this polysaccharide?
chitin
Plasmodium: the organism that causes _______ is a _______.
1) malaria
2) sporozoan
Which of the following correctly pairs a protist with one of its characteristics? A) sporozoan: parasitic B) amoeba: flagella C) euglena: cilia D) ciliates: pseudopods
A) sporozoan: parasitic
If all fungi in an environment that perform decomposition were to suddenly die, then which group of organisms should benefit most, due to the fact that their fungal competitors have been removed?
prokaryotes
In amoebas, food is stored in vacuoles following which method of eating?
phagocytosis
What is one reason why the classification of protists in one kingdom is difficult?
protists more closely resemble members of other eukaryotic kingdoms than they do other protists
Lichens play an important role in soil formation because they _______________.
are often the first organisms to enter barren environments
Ciliates get food by _____________.
sweeping food particles into their gullet
Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? A) flagellates B) ciliates C) amoebas D) water molds
D) water molds
What would happen to termites is trichonympha disappeared?
termites would die because they cannot digest wood without trichonympha
The stiff outer membrane of paramecium connecting the cilia to the cell membrane is called the _________.
pellicle
Which of the following is NOT characteristic of ciliates?
A) they use cilia as locomotory structures or as feeding structures
B) they are relatively complex cells
C) they have two or more nuclei
D) they can exchange genetic material with other ciliates through mitosis
E) most live as solitary cells in fresh mater
D) they can exchange genetic material with other ciliates through mitosis
Which type of fungi have a mutualistic relationship by breaking down nutrients for plants? A) parasitic fungi B) none of the choices are correct C) truffles D) lichen
B) none of the choices are correct
it’s mycorrhizae
Which phylum includes yeast and penicillin?
ascomycota
You are given an unknown organism to identify. It is unicellular and heterotrophic. It is mobile, using many short, hair-like filaments. It has well-developed organelles (such as a contractile vacuole) and a nucleus. This organism is most likely to be a member of which group?
ciliates
Which is a mutualistic partnership that involves a protist and a host organism?
A) cellulose-digesting protists: wood-eating termites
B) zooxanthellae: coral reefs
C) giardia: humans
D) all but C
D) all but C
All fungi are ___________.
heterotrophic eukaryotes
To move, nonmotile protists depend on ______________.
air or water currents and other organisms
Which analogy best describes the motion of a nonmotile protist?
A) a boat is moved forward by several oars
B) a boat is moved forward by a current
C) a boat is moved forward by a single long oar
D) a boat is moved forward by a motor
B) a boat is moved forward by a current
An organism with a long tail is known as a ____________.
flagellate
Which structure of a paramecium holds a “reserve copy” of all the cell’s genes?
micronucleus
A pseudopod is a ___________.
a cytoplasmic projection
An important role of fungi in an ecosystem is ___________.
breaking down dead organisms
The gray-black, filamentous, haploid mycelium growing on bread is most likely what kind of organism?
zygomycete
What phylum has members producing sexual spores found in saclike structures?
ascomycota
Which of these structures are most likely to be a component of both chytrid zoospores and motile animal cells? A) pseudopods B) flagella C) haustoria D) cilia E) pellicle
B) flagella
Phytoplankton are only found at the surface of the ocean waters because _____________.
they require sunlight to carry out photosynthesis
What structures do protists such as amoebas use for movement?
pseudopods
Which of the following form a mutualistic relationship with another organism? A) giardia B) plasmodium C) trichonympha D) trypanosoma
C) trichonympha
Which of the following is NOT true? A) yeast are unicellular fungi B) fungi have hyphae made of chitin C) most fungi are unicellular D) most fungi are multicellular
C) most fungi are unicellular
The tangled mass that makes up the part of a fungus that is below the soil is the ___________.
mycelium
What phylum contained mushrooms, shelf fungi, and puffballs?
basidiomycota
In a mycorrhizal relationship, what benefit does the plant get from the fungus?
aid in the absorption of water and minerals
Zygosporangia are to zygomycetes as basidia are to _________.
club fungi
The ascomycetes get their name from which aspect of their life cycle?
shape of the spore
Due to the small size of protists, they ______________.
do not need any special organs to exchange gases or excrete waste
they rely on simple diffusion to move gases and waste materials in and out of the cell
The vegetative (nutritionally active) bodies of MOST fungi are ___________.
composed of hyphae, referred to as mycelium, and usually underground
Which process results in genetic recombination, but is separate from the process wherein the population size of the paramecium increases?
conjugation
What structure contains a reserve copy of genes?
micronucleus
What structure is used to store food?
food vacuole
What structure detects light in photosynthetic protists?
eyespot
What structure is the indentation where food enters in a paramecium?
gullet
What structure controls what enters and exits the cell?
cell membrane
What structure releases extra water from protists?
contractile vacuole
What structure contains many copies of genes and controls everything in the cell?
macronucleus
What phylum does a paramecium belong to?
ciliophora
What phylum does a plasmodium belong to?
sporozoa
What phylum does red algae belong to?
rhodophyta
What phylum does brown algae belong to?
phaeophyta
What phylum do common molds belong to?
zygomycota
What phylum does club fungi belong to?
basidiomycota
What phylum does spirogyra belong to?
chlorophyta
What phylum do diatoms belong to?
chrysophyta
What phylum does a euglena belong to?
euglenophyta
What phylum does a volvox belong to?
chlorophyta
What phylum does a dinoflagellate belong to?
pyrrophyta
