Protist Diseases and Algae

Question 1

Pain, bloody diarrhea, fever

• fatal if reaches brain or liver
• transmitted by contaminated water, fruits, or vegetables

Answer 1

Amoebic Dysentery

Question 2

Spread by cats and eating undercooked meat that contains cysts

• flulike
• if pregnant women get it, baby can have eye or brain damage
• do not change litter boxes if pregnant

Answer 2

Toxoplasmosis

Question 3

Causes African sleeping disease transmitted by insect

-uncontrollable sleeping, fever, swollen lymph nodes

Answer 3

Trypanosoma

Question 4

Causes malaria

• female mosquito injects plasmodium by saliva
• goes to liver, reproduces, goes to blood cells, reproduces again
• new generation every 48 to 72 hours
• high fever, delirium, sweating, chills, lost red blood cells
• can be treated by chloroquine and primaquine (made from bark of tropical tree)

Answer 4

Plasmodium

Question 5

Type of protist that is parasite to intestines

• severe diarrhea and intestinal cramps
• campers and hikers that drink untreated water

Answer 5

Giardiasis

Question 6

Green algae

-very similar to plants

Answer 6

Chlorophyta

Question 7

Brown Algae

• in cool oceans
• largest algae (kelp that grows to 197 feet)
• large air-filled sacs to keep near surface

Answer 7

Phaeophyta

Question 8

Red algae

• lives at lower depths
• usually in warmer waters
• cell wall coated with carrageenan

Answer 8

Rhodophyta

Question 9

Polysaccharide used as thickening agent in ice cream and gelatin

Answer 9

Carrageenan

Question 10

Freshwater protist with flagella (flagellates)

• some are photosynthetic and heterotrophic, when no sunlight
• has eyespot to sense light

Answer 10

Euglenoids

Question 11

Fire algae

• dinoflagellates
• main producers in ocean
• plates with flagella
• many display bioluminescence
• some cause red tide when bloom
• produce toxin that causes respiratory paralysis

Answer 11

Pyrrophyta

Question 12

Golden Algae (Diatoms)

• photosynthetic, unicellular
• double shells of silica or calcium carbonate
• main producer is the ocean
• shells accumulate on ocean bottom
• diatomaceous earth used in detergents, filters, insulators

Answer 12

Chrysophyta

Question 13

Anchor-like roots

Answer 13

Holdfast

Question 14

Stemlike structure

Answer 14

Stipe

Question 15

Leaflike structure

Answer 15

Blade