Botany 200 Final Algae
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- 1.________ is sexual reproduction or union of gametes in algae.
- 2.Photo autotrophs are the top of the marine food chain
- A.
True
- B.
False
- 3.Photo autotrophs are responsible for how much of the oxygen on earth
- A.
30 to 50%
- B.
50 to 60%
- C.
60 to 70%
- 4.Diatoms and brown algae belong to this group
- A.
Chlorophyta
- B.
Alveolates
- C.
Stramenopiles
- D.
None of the above
- 5.Diatoms have what type of unicells
- A.
Symmetrical
- B.
Large
- C.
Round
- 6._________ are 2 halves of a cell wall
- 7.Diatoms and brown algae (stramenopiles) are found where
- A.
Fresh water
- B.
Salt water
- C.
Coastal waters
- D.
All of the above
- E.
Just a and c
- 8.Diatomaceous earth is sedimentary rock made from algae skeletons
- A.
True
- B.
False
- 9.The brown color in brown algae comes from what carotenoid
- A.
Fucoxanthin
- B.
Sarassum
- C.
Phycoerythria
- 10.What facts about algin are true
- A.
Thickens ice cream
- B.
Is a 60 million/year industry
- C.
Is added into toothpaste, cosmetics, soaps and paint
- D.
Is not a sustainable harvest
- E.
Is used for fertilizer
- F.
Is a 40 million/year industry
- 11.Red algae is unicellular
- A.
True
- B.
False
- 12.The red color in red algae comes from what photosynthetic pigment
- A.
Phycoerythria
- B.
Phaeophyta
- C.
Fucoxanthin
- D.
Sarassum
- 13.Red algae is used in soups, carrageenan, and agar
- A.
True
- B.
False
- 14.Where does red algae live check all that apply
- A.
Oceans
- B.
Shallow tide pools
- C.
Salt water
- 15.Red algae is able to change the relative amounts of photosynthetic pigments depending on the light conditions to maximize outcome of PSN
- A.
True
- B.
False
- 16.An example of an alveolate is
- A.
Chlorophyta
- B.
Multicellular organism
- C.
Dinoflagellate
- 17.Dinoflagellates are important primary producers in the oceans
- A.
True
- B.
False
- 18.Red tides are toxic to animals living in them
- A.
True
- B.
False
- 19.Alveolates are...
- A.
Autotrophs
- B.
Heterotrophs
- C.
Both
- 20.Chlorophyta and streptophytes are
- A.
Green algae
- B.
Brown algae
- C.
Red algae
- 21.Coleochaetales (stoneworts) and Charales are closest related to land plants
- A.
True
- B.
False
- 22.Green algae have what kind of relationship with fungi - lichen
- A.
Paracitic
- B.
Smybiotic
- C.
No relation
- 23.Euglenoids are a clade of ______ protists with fagella
- A.
Unicellular
- B.
Multicellular
- C.
Bicellular
- 24.All Euglena species are heterotrophic
- A.
True
- B.
False
- 25.________ Euglena become ________ in the dark, and they resume their __________ behavior when returned to light
- A.
Autotrophic, heterotrophic, autotrophic
- B.
Heterotrophic, autotrophic, heterotrophic
- C.
Autotrophic, heterotrophic, heterotrophic
- 26.What part of a euglenoid propels it?
- A.
Contractile vacuole
- B.
Polysaccharides
- C.
Fagella
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