Botany 200 Final Algae

26 Questions | By Swarren | Last updated: Mar 21, 2022 | Total Attempts: 465

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Botany final material algae ppt questions

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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