50 notecards = 13 pages (4 cards per page)
Plasmodium falciparum is a protistan parasite, borne by
mosquitoes, that constitutes a serious health problem for humans. The
disease it causes is:
Protists are NOT monophyletic. This means:
C. that all protists are not more closely related to each other than they are to some other kinds of organisms
Which of the following types of organisms are NOT considered to be
part of the plankton?
Phytophthora, a pathogen attacking a wide variety of plants,
Flagella can be used to:
E. propel the organism, collect food, and propel reproductive cells
Phagocytosis (Phagotrophy) is:
E. the capture of food particles by a cell
Endosymbiosis gave rise to:
D. both chloroplasts and mitochondria
Which of the following statements is NOT true of Trichomonas vaginalis?
D. It has mitosomes.
Which of the following DOES NOT occur in Euglenozoa?
The immediate ancestors of plants were:
Stramenopiles are unique in that they possess:
B. hairy flagella
There was a massive immigration of Irish to the United States in the
mid-19th century because of a failure of the Irish potato crop caused
C. Phytophora infestans
Which of the following statements best describes secondary
B. A host cell ingests another cell already containing a primary symbiont.
Which of the following statements is NOT true of any Foraminifera?
E. They have flagella
Amoebae are characterized by:
A. locomotion by extension of pseudopodia
The collars on the cells of choanoflagellates have the function of:
B. filtering bacterial food from the water
The group of protists to which you are most closely related is:
A. the choanoflagellates
Which of the following terms DOES NOT describe a basic type of
Which of the following statements DOES NOT characterize decomposers?
E. They contain endosymbionts.
Algae appear in colors of gold, brown, red, or green. The
significance of that fact is:
A. These pigments absorb the quality of light prevalent in their various preferred habitats and enhance their photosynthetic ability.
Which of the following are not used by protists for protection
C. gamma radiation
A. emission of flashes of light by organisms
The dinoflagellate Pfisteria is an important protist. Which
of the following statements DOES NOT describe its attributes?
D. It is a major cause of food poisoning in humans.
Which of the following statements is NOT true of protistan cysts?
E. They attach to host cells by small hooks.
The adaptive significance of sexual reproduction is that it:
A. diversifies genotypes thereby allowing faster evolutionary responses to changing environments
In a zygotic life cycle:
A. Haploid cells form gametes that fuse to produce thick-walled diploid zygotes capable of surviving stressful conditions.
Diatoms reproduce by:
C. a gametic life cycle
Diatoms have a special problem:
D. because their two halves fit like the lid and body of a pillbox and on repeated cell divisions the half that is overlapped gets progressively smaller
Exchange of genetic material in ciliates is known as:
When a ciliate reproduces asexually by mitosis:
A. The macronucleus divides into two with each new cell receiving an identical macronucleus.
In sexual reproduction in ciliates the sequence of events is:
A. (1) in each conjugating pair of cells all but one of the four
diploid micronuclei disintegrates, (2) then the surviving one
undergoes meiosis to produce four haploid micronuclei, of which three
also disintegrate, (3) the remaining micronucleus undergoes mitosis to
produce two, (4) of which one stays in the parent cell and the other
moves to the opposite cell while the macronucleus in each cell
disintegrates, (5) the cells separate, each with two nuclei, one of
its own and one from its conjugant, (6) one haploid micronucleus in
each cell forms a new haploid macronucleus and the other divides
mitotically to form eight new haploid micronuclei, (7) the two haploid
macronuclei fuse to form a diploid one and the eight haploid
micronuclei fuse by pairs into four diploid micronuclei.
B. (1) in each conjugating pair of cells all but one of the four diploid micronuclei disintegrates, (2) then the surviving one undergoes meiosis to produce four haploid micronuclei, of which three also disintegrate, (3) the remaining micronucleus undergoes mitosis to produce two, (4) of which one stays in the parent cell and the other moves to the opposite cell while the macronucleus in each cell disintegrates, (5) the cells separate, each with two nuclei, one of its own and one from its conjugant, (6) the two haploid micronuclei in each cell fuse to form a diploid micronucleus, that (7) divides mitotically, producing diploid macronuclei and micronuclei.
Plasmodium sporozoites produce merozoites in the human:
The sexual phase of Plasmodium is called a:
The symptoms of malaria are:
E. alternating chills and fever
The malarial stage infecting red blood cells of humans are the:
Sleeping sickness is transmitted by:
B. tsetse flies
Knowledge of a pathogen's genome is useful because:
D. It allows developing drugs that target metabolic pathways unique to the pathogen.
The photosynthetic systems of algae living in deeper water are
adapted to absorb more of the light of which of the following colors?
The choanoflagellates are in the supergroup:
Slime molds are in the supergroup:
Some algae are more closely related to plants than they are to other algae.
Protozoa are monophyletic.
The supergroup Excavata contain some of Earth's most recent eukaryotes.
Metaboly is a reduced level of metabolism that allows protists to remain dormant under stressful environments.
Paramylon are stored particles of carbohydrate
Red algae, green algae, and plants are so closely related that they are grouped in the same supergroup by most biologists.
Animals and fungi are more closely related to each other than either is to plants.
Zoospores are single flagellated cells that disperse otherwise nonmotile protists.
Sexual reproduction provides multiple benefits to protists
The alternate host for Entamoeba histolytica is the Anopheles mosquito.