Chapter 28

What does the World Health Organization think of indoor DDT use in Uganda? They condone it. They are undecided. They condemn it. They haven't said.

They condone it.

Many types of foraminiferans form a symbiotic relationship with _____. algae bacteria seaweed

algae

Which of these groups is characterized by glasslike walls containing silica? 1. plants 2. diplomonads 3. diatoms 4. plasmodial slime molds 5. brown algae

3. diatoms Diatoms are characterized by glasslike walls containing silica.

The members of _____ are characterized by cells with small membrane-bounded cavities under their cell membranes. 1. Stramenopila 2. Chlorophyta 3. Mycetozoa 4. Alveolata 5. Rhodophyta

4. Alveolata

All of the organisms classified as _____ move and feed using cilia. 1. diplomonads 2. apicomplexans 3. dinoflagellates 4. ciliates 5. diatoms

4. ciliates Ciliates move and feed using cilia.

Plasmodium, the parasitic organism that causes malaria, is a _____. 1. ciliate 2. diatom 3. plasmodial slime molds 4. entamoeba 5. apicomplexan

5. apicomplexan Plasmodium, is an apicomplexan.

Which three groups contain large algae known as seaweeds? 1. diatoms, golden algae, and brown algae 2. chlorophytes, charophyceans, and red algae 3. dinoflagellates, apicomplexans, and green algae 4. plants, fungi, and choanoflagellates 5. brown algae, red algae, and green algae

5. brown algae, red algae, and green algae All three of these are seaweeds

Golden algae, brown algae, red algae, chlorophytes, and charophyceans are some examples of protists that are _____. 1. photoheterotrophic 2. decomposers 3. chemoautotrophic 4. chemoheterotrophic 5. photosynthetic

5. photosynthetic

A paramecium is a(n) _____. 1. ciliate 2. apicomplexan 3. diatom 4. metazoan 5. dinoflagellate

1. ciliate A paramecium makes use of its cilia to move and feed.

Which of these algal groups possess a photosynthetic pigment that allows them to live in deep water? 1. red algae 2. diatoms 3. metazoans 4. brown algae 5. green algae

1. red algae The phycobilins and other accessory pigments of red algae allow them to absorb the wavelengths of light that penetrate deep water and to use them in photosynthesis.

About how many African children die weekly from malaria? 2,000 8,000 14,000 20,000

14,000

After DDT was sprayed in Uganda, organic farming companies said they wouldn't return for how long?

15 years

The largest seaweeds are _____. 1. diatoms 2. brown algae 3. dinoflagellates 4. red algae 5. green algae

2. brown algae Brown algae are the largest of the seaweeds.

Which of these groups consist of parasitic flagellated cells, such as Trypanosoma, the organism that causes sleeping sickness? 1. metazoans 2. kinetoplastids 3. brown algae 4. ciliates 5. diatoms

2. kinetoplastids

Which group is characterized by cells with fine hairlike projections on their flagella? 1. Metazoa 2. Alveolata 3. Stramenopila 4. Rhodophyta 5. Euglenozoa

3. Stramenopila Stramenopiles are characterized by cells that bear fine hairlike projections on their flagella.

Stramenopiles include all of the following groups EXCEPT ______. 1. golden algae 2. diatoms 3. cellular slime molds 4. water molds 5. brown algae

3. cellular slime molds Cellular slime molds are amoebozoans

Which algal group has chloroplasts much like those of green plants in structure and pigment makeup? 1. red algae 2. golden algae 3. chlorophytes 4. diatoms 5. brown algae

3. chlorophytes Chlorophytes (green algae), like green plants, contain both chlorophylls a and b.

Which of these groups includes both aquatic decomposers and the parasites responsible for late potato blight? Which of these groups includes both aquatic decomposers and the parasites responsible for late potato blight? A. oomycetes B. plasmodial slime molds C. plants D. red algae E. diatoms

A. oomycetes

Dr. Cattolico's work has resulted in _______. A. the identification of several algae species as potential sources of biofuel B. pond scum clean-up and water quality improvements C.the isolation of an algal protein that can be converted into a lipid D. the production of enough biodiesel to replace gasoline in the state of Washington

A. the identification of several algae species as potential sources of biofuel

Archaeplastids, which include red and green algae and land plants, are thought to have descended from a heterotrophic protist that engulfed a(n) _____. A) slime mold B) alpha proteobacterium C) cyanobacterium D) apicomplexan E) archaean extremophile

C) cyanobacterium

Coral bleaching, which causes high coral mortality, has been occurring widely in coral reefs. Coral bleaching actually refers to the death of symbiotic dinoflagellates living within the corals. Why does coral bleaching cause the corals to die? A. Dinoflagellates protect the corals from UV radiation. B. Dinoflagellates protect the corals from pathogenic bacteria. C. Dinoflagellates provide nutrients from the products of photosynthesis to the corals in exchange for a safe place to live. D. Dinoflagellates attract zooplankton and other prey that the corals eat. E. Dinoflagellates secrete the calcium carbonate that forms the "exoskeleton" of coral animals.

C. Dinoflagellates provide nutrients from the products of photosynthesis to the corals in

_____ are eukaryotic autotrophs that float near the surface of water and are the basis of the food chain. A. Zooplankton B. Slime molds C. Phytoplankton D. Cyanobacteria E. Symbionts

C. Phytoplankton

The cells of _____ and _____ have modified mitochondria. A. chlorophytes ... ciliates B. fungi ... stramenopiles C. diplomonads ...parabasalids D. dinoflagellates ... metazoans E. euglenozoans ... alveolates

C. diplomonads ...parabasalids

The work done by Dr. Rose Ann Cattolico and her assistants at the University of Washington involves _______. A. extracting chlorophyll from algae to learn how these organisms gain energy from light B. engineering vehicles that use algae for fuel C. growing algae under different conditions and measuring their lipid production D. engineering algae to photosynthesize at higher rates

C. growing algae under different conditions and measuring their lipid production

Which of the following is a correct statement about slime molds? A. Cellular slime molds have haploid zygotes. B. Cellular slime molds have fruiting bodies that function in sexual reproduction. C.In plasmodial slime molds, the haploid condition is the dominant part of the life cycle. D. Cellular slime molds form masses when food is scarce, but their cells remain separated. E. Cytoplasmic streaming helps distribute nutrients and oxygen in cellular slime molds.

D. Cellular slime molds form masses when food is scarce, but their cells remain separated.

A sign on the beach states, "Beach Closed. Red Tide." The organisms interfering with your use of this beach are probably _____. A.amoebas B.ciliates C.diatoms D. dinoflagellates

D. dinoflagellates

The team is looking for an organism that _______. A. can use artificial light for photosynthesis B. grows fast and has high density in the flask C. has the greatest carbohydrate production D. grows fast and produces high-quality lipids

D. grows fast and produces high-quality lipids

When technology is available, the next step in Dr. Cattolico's research will be _______. A. reducing the cost of growing algae by decreasing nutrient requirements B. adjusting the amount of light needed to grow algae C. purchasing more coolers to store additional flasks D. increasing the amount of algae grown at one time

D. increasing the amount of algae grown at one time

Which of the following has been replacing DDT? chlorpyrifos bendiocarb dieldrin malathion

bendiocarb

DDT has been linked to which of the following? prostate cancer lymphoma thyroid cancer breast cancer

breast cancer

Which of the following are two groups that are adapted to anaerobic conditions and contain modified mitochondria that lack DNA? A.dinoflagellates and diatoms B.chlorophytes and radiolarians C.apicomplexans and forams D.gymnamoebas and slime molds diplomonads and parabasalids

diplomonads and parabasalids