Chapter 10.4 - Protists

Question 1

What is a protist

Answer 1

Eukaryotic organisms that can’t be classified as animals, plants or fungi

Question 2

Do protists have a wide variety of characteristics

Answer 2

Yes

Question 3

Where do protists live

Answer 3

In moist environments

Question 4

True or false, all protists cause diesese

Answer 4

False, most are harmless but some can cause diesese

Question 5

What are the defining features of animal-like protists

Answer 5

Food - heterotrophs

Features - unicellular

Movement - freeswimming

Reproduction - asexual and sexual

Common name - protozoans

Question 6

What are the 4 phyla of animal-like protists

Answer 6

Zooflagellates

Sarcodines

Ciliates

Sporozoans

Question 7

How are the different phyla of animal-like protists classified

Answer 7

By their means of movement

Question 8

How do each of the animal-like protists move

Answer 8

Zooflagellates swim with their flagella

Sarcodines move by extensions of their cytoplasm

Ciliates move by means of cilia

Sporozoans don’t move on their own at all

Question 9

What are the traits of zooflagellates

Answer 9

Animal-like protists

Swim using flagella

Classified in the phylum zoomastigina

Question 10

What are the traits of sarcodines

Answer 10

Animal-like protists

Use pseudopods(temporary cytoplasmic projections) for feeding and movement called amoebid movement

Ex; amoebas

Question 11

What are the traits of ciliates

Answer 11

Animal-like protists

Use cilia for feeding and movement

Classified in the phylum ciliophora

Question 12

What are the traits of sporozoans

Answer 12

Animal-like protists

Do not move on their own

Parasitic

Question 13

What are the four kinds of animal-like protists and diesese

Answer 13

Malaria

African sleeping sickness

Amebic dysentary

Giardia

Question 14

What is malaria

Answer 14

Caused by sporozoan plasmidium

Carried by the female anopheles mosquito

Question 15

What is african sleeping sickness

Answer 15

Caused by zooflagellate trypanosoma through the bite of the tsetse fly

Question 16

What is amebic dysentary

Answer 16

Caused by parasitic amoeba entamoba

Typically passed through poor water sanitation

Question 17

What is giardia

Answer 17

Caused by flagellated pathogen giardia

Symtoms included diarrhea and digestive problems

Question 18

What are the traits of plant-like protists

Answer 18

Food is autotrophs

Features are unicellular or multicellular

Movement is freeswimming or attached

Reproduction is sexual and asexual

Common name is algae(unicellular) and seaweed(multicellular)

Question 19

What are the fourplantlike protist phyla

Answer 19

Euglenophytes - 2 flagella but no cell wall

Chrysophytes - gold colored chloroplasts

Diatoms - produce thin delicate cell walls rich in silicon(SI) which is the main component in glass

Dinoflagellates - half are photosynthetic half are heterotrophic

Question 20

What are the traits of fungi-like protists

Answer 20

Food is heterotrophs

Features are unicellular; butoften live in colonies, fungus-like protists have centrioles, lack chitin cell walls true of fungi

Movement is during some part of their life cycle

Reproduction is asexual

Question 21

What is slime mold

Answer 21

Fungus-like protists

Play a key role in recycling organic matter

Use spores to reproduce at some point in their life cycle

Question 22

What are water molds

Answer 22

Fungus-like protists

Oomycetes thrive on dead or decaying organic matter in water

Some are plant parasites on land