Which major group of protists is most closely

Which major group of protists is most closely related to animals? 1. 2. 3. 4. 1 amoebozoans euglenoids green algae ciliates 2 3

The group most closely related to plants is ____. 1. 2. 3. 4. 1 brown algae green algae red algae diplomonads 2 3

A sexually transmitted disease that can damage the urinary and reproductive tracts is caused by the organism ____. 1. Trichonympha campanula 2. Giardia lamblia 3. Trichomonas vaginalis 4. Trypanosoma brucei 1 2 3

Select the false statement about euglenoids. 1. 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 2. 3. 4. 1 2 3

Kinetoplastids are ____. 1. organelles of certain protists specialized to store starch 2. flagellates which are nearly all parasitic 3. autotrophic ciliates 4. heterotrophic radiolarians 1 2 3

Some photosynthetic protists, including ____, are symbionts of predatory foraminiferans. 1. 2. 3. 4. 1 golden algae euglenoids diatoms brown algae 2 3

The pellicle of a paramecium does not ____. 1. store calcium ions and maintain the cell's structure 2. control the rate of ciliary beating 3. anchor trichocysts 4. expel excess water from the cell 1 2 3

During protozoan conjugation, ____. 1. 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 2. 3. 4. 1 2 3

Since the dinoflagellates responsible for red tides are photosynthetic oxygen-producers, why do these blooms suffocate fish? 1. 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 2. 3. 4. 1 2 3

Neurotoxic shellfish poisoning ____. 1. 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 2. 3. 4. 1 2 3

The stage of the plasmodium parasite that is transmitted to humans by the bite of a mosquito is the ____. 1. 2. 3. 4. 1 sporozoite merozoite gametocyte zygote 2 3

Malaria symptoms in an infected person begin when ____. 1. 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 2. 3. 4. 1 2 3

General characteristics of chrysophytes include all of the following except ____. 1. Most are free-living photosynthetic cells They contain chlorophylls a, C 1, and C 2 The group includes golden algae, yellow-green algae, and brown algae Their chloroplasts have four outer membranes 2. 3. 4. 1 2 3

The chrysophytes that can produce enough dimethyl sulfide waste to force migratory fish to change course are the ____. 1. golden algae 2. coccolithophores 3. diatoms 4. yellow-green algae 1 2 3

The largest, most complex multicellular protists are the giant kelps, which are a type of ____ algae. 1. brown 2. yellow-green 3. green 4. golden 1 2 3

Oomycotes ____. 1. 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 2. 3. 4. 1 2 3

The stramenopile responsible for sudden oak death is ____. 1. Phytophthora infestans 2. Phytophthora ramorum 3. Saprolegnia 4. Plasmopara viticola 1 2 3

Identify the false statement about the life cycle of the red algae, Porphyra. 1. 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 2. 3. 4. 1 2 3

During the life cycle of Chlamydomonas, a green algae, ____. 1. 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 2. 3. 4. 1 2 3

A plasmodium is ____. 1. 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 2. 3. 4. 1 2 3

When Entamoeba divides, occasionally the two daughter cells cannot completely separate. This results in ____. 1. 2. 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 3. 4. 1 2 3