Chapter 21

Multicelled haploid and diploid bodies form in protists that have \(a(n)\) ___________. a. haploid-dominant life cycle b. diploid-dominant life cycle c. alternation of generations

The __________ of diplomonads and parabasalids produce ATP by an anaerobic pathway. a. trypanosomes b. hydrogenosomes c. microvilli d. flagella

Radiolaria and diatoms have a shell of ___________. a. cellulose b. silica c. calcium carbonate d. chitin

Which of the following might you find in seawater? a. an apicomplexan b. a cellular slime mold c. a dinoflagellate d. a euglenoid e. all of the above

Diatoms produce ________ that help them float. a. sugars b. oils c. diatomaceous earth d. agar

Chloroplasts of green algae evolved from _____________.

Green algae are most closely related to ____________. a. brown algae b. diatoms c. red algae d. dinoflagellates

To reproduce sexually, two ciliates join and ____________. a. exchange micronuclei b. form spores c. emit light d. infect cells

Which species does not cause human disease? a. Toxoplasma gondii b. Entamoeba histolytica c. Dictyostelium discoideum d. Trichomonas vaginalis

_____________ is produced from red algae. a. Diatomaceous earth b. Chert c. Carrageenan d. both b and \(c\)

A protist that has a contractile vacuole _____________. a. is a heterotroph b. reproduces only by asexual means c. evolved chloroplasts by secondary endosymbiosis d. lives in fresh water

Choanoflagellates are considered the sister group to, or closest living relatives of ___________. a. plants b. fungi c. animals d. dinoflagellates

Bioluminescent dinoflagellates ____________. a. have a clear silica shell b. convert ATP energy to light energy c. live inside most corals d. are multicelled heterotrophs

Match each term with its most suitable description. ________limestone ________chert ________algin ________nori ________agar a. extracted from kelps b. dried red alga c. remains of radiolaria d. extracted from red algae e. remains of foraminifera

Match each term with its most suitable description. _________diplomonad _________apicomplexan _________algal bloom _________diatom _________brown alga _________red alga _________green alga _________choanoflagellate a. protist population explosion b. silica-shelled producer c. cells with "collared" flagellum d. no mitochondria, anaerobic e. closest relative of land plants f. multicelled, with fucoxanthin g. one type causes malaria h. deep dweller with phycobilins