Protists

Question 1

An example of a Chlorophytes:

Answer 1

colonial volvox

Question 2

closest extant protist group to plants

Answer 2

Charophytes

Question 3

What are some characteristics of green algae?

Answer 3

​Cellulose in cell walls

​Chlorophyll a & b

Question 4

Where is red algae found?

Answer 4

Warm tropical waters

Question 5

Why is red algae red?

Answer 5

Contain red pigment – reflects red wavelengths of light, absorbs blue and green. Blues and greens penetrate deeper into the water column – red algae can be found at greater depths

Question 6

Characteristics of brown algae:

Answer 6

Multicellular, large – forms kelp beds, photosynthetic

parts?

Question 7

Stramenophiles:

Answer 7

Oomycetes, Coccolithophores, Diatoms

Question 8

Oomycetes

Answer 8

decomposer – plant parasite (caused the potato blight); water mold

Question 9

Coccolithophores

Answer 9

calcium carbonate under plasma membrane, formed chalk deposits

Question 10

Diatoms

Answer 10

– cell walls contain silica, major component of phytoplankton, photoautotrophic

​​Know some uses of diatoms

Question 11

Flagellated Protozoans:

Answer 11

Trypanosome, Euglena

Question 12

trypanosome

Answer 12

causes African sleeping sickness and Chagas disease

Question 13

Why is it difficult to develop an immunity to trypanosomes?

Answer 13

surface proteins change with each generation

Question 14

Euglena

Answer 14

mixotroph, eyespot, detects light for photosynthesis

Question 15

Avelolates

Answer 15

Commonly have sacs (alveoli) under the membrane

ex. Dinoflagellates, Apicomplexan, Ciliates

Question 16

Dinoflagellates

Answer 16

​Parasitic, photoautotrophic, retain a modified plastid, symbiotic with coral reefs, produces Red Tide
​Know the results (consequences) of Red Tide

Question 17

Apicomplexan

Answer 17

Representative organism is the Plasmodium – causes malaria, heterotrophic, needs two hosts
​Difficult to develop immunity – hidden in the cells of two hosts, and changes surface proteins

Question 18

Ciliates

Answer 18

Representative organism is the Paramecium - heterotrophic, locomotion by cilia, contractile vacuole to rid excess water, micronuclei and a macronuclei, (can swap micronuclei in sexual reproduction gives genetic

Question 19

Shelled Amoebas:

Answer 19

Commonly have thread-like pseudopodia used in capturing prey

ex. radiolarians, Foraminiferans

Question 20

Foraminiferans

Answer 20

“tests” - shells of calcium carbonate – important fossils

Question 21

radiolarians

Answer 21

silica shells - ameoba

Question 22

Amoebozoans

Answer 22

​Commonly – lobed or tube shape pseudopods for locomotion and to engulf prey, most no cell wall or shell
ex.
​Entamoebas

Question 23

Single celled, parasitic, heterotrophic, cause of amoebic dysentery

Answer 23

Entamoebas

Question 24

Slime molds:

Answer 24

​Fungal – like protists
​Plasmodial slime mold: plasmodium - feeding form
​Cellular slime mold: single cell - feeding form