1. Which major group of protists is most closely related to animals?
amoebozoans
euglenoids
green algae
ciliates 1 2 3

2. The group most closely related to plants is ________.
brown algae
green algae
red algae
diplomonads 1 2 3

3. Trichonympha campanula Giardia lamblia Trichomonas vaginalis
A sexually transmitted disease that can damage the urinary and reproductive tracts is caused by the organism ________.
Trichonympha campanula
Giardia lamblia
Trichomonas vaginalis
Trypanosoma brucei 1 2 3

4. Select the false statement about euglenoids.
euglenoids all contain chloroplasts with chlorophyll a and b in their membranes
an eyespot near the base of their flagellum allows euglenoids to detect light
euglenoids reproduce asexually by binary fission
a contractile vacuole removes water that crosses its membrane 1 2 3

5. Kinetoplastids are ________.
organelles of certain protists specialized to store starch
flagellates which are nearly all parasitic
autotrophic ciliates
heterotrophic radiolarians 1 2 3

6. Some photosynthetic protists, including ________, are symbionts of predatory foraminiferans.
golden algae
euglenoids
diatoms
brown algae 1 2 3

7. The pellicle of a paramecium does not ________.
store calcium ions and maintain the cell's structure
control the rate of ciliary beating
anchor trichocysts
expel excess water from the cell 1 2 3

8. During protozoan conjugation, ________.
the two cells undergo cytoplasmic fusion, then their micronuclei enter mitosis
each cell trades a daughter micronucleus with its partner
the macronucleus of each cell enters meiosis
the macronucleus degenerates, then three micronuclei fuse and form a new macronucleus 1 2 3

9. Since the dinoflagellates responsible for red tides are photosynthetic oxygen-producers, why do these blooms suffocate fish?
if dinoflagellate populations are quite high they can coat the gills of fish, preventing gas exchange
toxin produced by the dinoflagellates binds to sodium pumps in cell membranes, disrupting nerve cell functioning
cellulose deposited by dinoflagellates is toxic to fish
aerobic bacteria that decompose the remains of the dinoflagellates themselves increase after a bloom, removing oxygen from the water 1 2 3

10. Neurotoxic shellfish poisoning ________.
is caused by eating poisonous species of shellfish
kills many species of shellfish including clams, oysters, and mussels
sickens people who eat shellfish from areas affected by Karenia brevis blooms
is due to eating improperly prepared puffer fish 1 2 3

11. The stage of the plasmodium parasite that is transmitted to humans by the bite of a mosquito is the ________.
sporozoite
merozoite
gametocyte
zygote 1 2 3

12. Malaria symptoms in an infected person begin when ________.
the female Anopheles mosquito bites the victim
the bloodstream carries the sporozoites to the liver
merozoites in the liver develop into gametocytes and enter the blood
infected liver cells rupture and release merozoites into the blood 1 2 3

13. General characteristics of chrysophytes include all of the following except ________.
Most are free-living photosynthetic cells
They contain chlorophylls a, C1, and C2
The group includes golden algae, yellow-green algae, and brown algae
Their chloroplasts have four outer membranes 1 2 3

14. The chrysophytes that can produce enough dimethyl sulfide waste to force migratory fish to change course are the ________.
golden algae
coccolithophores
diatoms
yellow-green algae 1 2 3

15. The largest, most complex multicellular protists are the giant kelps, which are a type of ________ algae.
brown
yellow-green
green
golden 1 2 3

16. Oomycotes ________.
are classified as fungi due to their absorptive mode of nutrition
produce nonmotile female gametes in egg chambers
have cell walls of chitin
are symbionts with roots of plants, increasing nitrogen fixation 1 2 3

17. The stramenopile responsible for sudden oak death is ________.
Phytophthora infestans
Phytophthora ramorum
Saprolegnia
Plasmopara viticola 1 2 3

18. Identify the false statement about the life cycle of the red algae, Porphyra.
the sheetlike form of Porphyra, used to wrap sushi, is the gametophyte generation
the gametes of red algae are not flagellated
the diploid stage of red algae is visible as an inconspicuous pinkish growth on shells
deeper dwelling species have darker coloration due to the presence of phycobilins that absorb red light 1 2 3

19. During the life cycle of Chlamydomonas, a green algae, ________.
up to sixteen daughter cells form by mitosis within a parent cell, and escape by secreting enzymes to digest the parent
diploid spores are produced by mitosis in a germinating zygote
deteriorating environmental conditions trigger the production of resistant haploid spores
gametes undergo cytoplasmic fusion, then nuclear fusion to produce a multicellular diploid sporophyte 1 2 3

20. A plasmodium is ________.
a multinucleate mass resulting from mitosis without cytokinesis (cytoplasmic division)
an aggregation of cells, each with its own nucleus and plasma membrane
a free-living amoeba
a cluster of haploid spores on a cellular stalk 1 2 3

21. When Entamoeba divides, occasionally the two daughter cells cannot completely separate. This results in ________.
a multinucleate plasmodium
the death of both the daughter cells
the release of a chemical that attracts a neighboring amoeba to act as "midwife" and sever the connection
a cellular slime mold 1 2 3