DEC 9 – ALGAE
1. Derived from more than one common evolutionary
ancestor or ancestral group and therefore not suitable for
placing in the same taxon
a)
b)
c)
d)
Speciation
Polytaxon
Multicestrally
polyphyletic
2. Algae have thick cell walls or thick cell membrane called
___.
a)
b)
c)
d)
e)
Desmid
Spirogyra
None of the above
Vacuole
Pellicle
3. The cell walls of many seaweeds contain __ that can be
extracted by hot water.
a)
b)
c)
d)
Algeliloids
Phycocolloids
Phycocuole
Carrageenan
4. Alginates are extracted primarily from
a)
b)
c)
d)
Red algae
Brown algae
Green algae
Golden algae
5. Dinoflagellates are
a)
b)
c)
d)
Autotrophic
Heterotrophic
Either autotrophic or heterotrophic
Neither autotrophic nor heterotrophic
6. Brown algae
a)
b)
c)
d)
Rhodophyta
Chrysophyta
Phaeophyta
Chlorophyta
7. Sea lettuce is
a)
b)
c)
d)
Ulva
Spirogyra
Ursula
Volvox
8. Spirogyra reproduces thru Conjugation
a)
b)
c)
d)
Conjugation
Replication
Binary fission
Budding
9. Water silk
a)
b)
c)
d)
Volvox
Porphyra
Ulva
Spirogyra
10. The largest group of seaweeds, about 4000 species;
most exclusively marine
a)
b)
c)
d)
Green Algae
Brown algae
Red algae
Euglena
11. Nori use to wrap uncooked fish & other food items
a)
b)
c)
d)
Euglena
Spirogyra
Porphyra
Desmids
12. __is used for stabilizing chocolate, milk, egg nog, ice
cream, sherbets, instant puddings, frostings, creamed
soups, etc. and is extracted from __
a)
b)
c)
d)
Alginate; Red algae
Carrageenan; Red algae
Carrageenan; Fucoxanthin
Agar; green algae
13. __ is found as an accessory pigment in the chloroplasts
of brown algae and most other heterokonts, giving them a
brown or olive-green color.
a)
b)
c)
d)
Carrageenan
Agar-agar
Fucoxanthin
Phycolloids
14. __ means gold
a)
b)
c)
d)
Auro
Chryso
Dinoflagellates
Rhino
15. Means Spinning swimmer.
a)
b)
c)
d)
Dinoflagellate
Diatom
Volvox
Chryso
16. Brown tide is caused by
a)
b)
c)
d)
Chrysophyta
Cyanobacteria
Dinoflagellates
Diatoms
17. Toxins that is culprit of DSP
a)
b)
c)
d)
Okadaic acids and dinophysistoxins
Domoic acid and Glutamic acid
Saxitoxins and Brevetoxins
Okadaic acids and Brevetoxins
18. Toxins that is culprit of ASP
a)
b)
c)
d)
Domoic acid and Glutamic acid
Saxitoxins and Brevetoxins
Okadaic acids and Brevetoxins
Okadaic acids and dinophysistoxins
19. The eyespot in euglena is the
a)
b)
c)
d)
Stigma
Pellicle
Nucleolus
Nucleus
20. __is a small, low molecular-weight neurotoxic alkaloid
produced by Anabaena and other related species.
a)
Aplysiatoxin
a. Anatoxin-a
b. Saxitoxin
c. Ciguatoxin