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Algonline

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

Algae grow on tree bark.

a)

Epiphytic

b)

Corticolous

c)

Epilithic

d)

Epipsamonic

2.

Algae grow on pebbles.

a)

Epiphytic

b)

Corticolous

c)

Epilithic

d)

Epipsamonic

3.

Algae grow on oyster shells.

a)

Epiphytic

b)

Epizoic

c)

Epilithic

d)

Epipsamonic

4.

Algae grow on mangrove roots.

a)

Epiphytic

b)

Epizoic

c)

Epilithic

d)

Epipsamonic

5.

Algae attach to the substratum.

a)

Benthic

b)

Planktonic

6.

Algae attach to the substratum.

a)

Benthic

b)

Planktonic

7.

What phylum does brown algae belong to?

a)

rhodophyta

b)

chlorophyta

c)

phaeophyta

d)

fucucillin

8.

Scientific name?

a)

Macrocystis pyrifera

b)

Giant kelp

c)

Nereocystis luetkeana

d)

Egregia menziesii

9.

Scientific name?

a)

Nereocystis luetkeana

b)

Macrocystis pyrifera

c)

Egregia menziesii

d)

Fucus spiralis

10.

Scientific name?

a)

Codium fragile

b)

Fucus spiralis

c)

Postelsia palmaeformis

d)

Ulva

11.

What phylum does green algae belong to?

a)

Chlorophyta

b)

Phaeophyta

c)

Rhodophyta

12.

Scientific name

a)

Postelsia palmaeformis

b)

Ulva

c)

Fucus spiralis

d)

Egregia menziesii)

13.

Scientific name?

a)

Egregia menziesii

b)

Fucus spiralis

c)

Ulva

d)

Nereocystis luetkeana

14.

What phylum does red algae belong to?

a)

chlorophyta

b)

phaeophyta

c)

rhodophyta

15.

Scientific name?

a)

Ulva

b)

Nereocystis luetkeana

c)

Fucus spiralis

d)

Macrocystis pyrifera

16.

Scientific name?

a)

Ulva

b)

Macrocystis pyrifera

c)

Postelsia palmaeformis

d)

Fucus spiralis

17.

Isogamous condition with non-flagellated gametes is found in:

a)

Spirogyra

b)

Volvox

c)

Fucus

d)

Chlamydomonas

18.

The plant body is thalloid in:

a)

Funaria

b)

Sphagnum

c)

Salvinia

d)

Marchantia

19.

Which one of the following is wrongly matched?

a)

Nostoc-Water blooms

b)

Spirogyra-Motile gametes

c)

Sargassum-Chlorophyll c

d)

Basidiomycetes-Puffballs

20.

Which of the following is responsible for peat formation?

a)

Marchantia

b)

Riccia

c)

Funaria

d)

Sphagnum

21.

Male gametes are flagellated in:

a)

Anabaena

b)

Ectocarpus

c)

Spirogyra

d)

Polysiphonia

22.

Which one of the following statements is wrong?

a)

Agar-agar is obtained from Gelidium and Gracilaria

b)

Chlorella and Spirulina are used as space food

c)

Mannitol is stored food in Rhodophyceae

d)

Algin and carrageen are products of algae

23.

An example of colonial alga is:

a)

Volvox

b)

Ulothrix

c)

Spirogyra

d)

Chlorella

24.

Fusion of two motile gametes which are dissimilar in size is termed as

a)

oogamy

b)

isogamy

c)

anisogamy

d)

zoogamy

25.

Holdfast, stipe, and frond constitutes the plant body in case of

a)

Rhodophyceae

b)

Chlorophyceae

c)

Phaeophyceae

d)

All of these

26.

Floridean starch is found in

a)

red algae

b)

brown algae

c)

green algae

d)

blue-green algae

27.

Agar-Agar is produced from

a)

blue-green algae

b)

red algae

c)

brown algae

d)

green algae

28.

A multicellular green algae is

a)

Chondrus

b)

Laminaria

c)

Chlamydomonas

d)

Ulva

29.

Fucoxanthin is found in

a)

red algae

b)

brown algae

c)

green algae

d)

blue-green algae

30.

Kelp is a kind of

a)

an aquatic plant

b)

a moss

c)

an algae

d)

a fungus

31.

Both chlorophyll a and b are present in

a)

Rhodophyceae

b)

Phaeophyceae

c)

Chlorophyceae

d)

None of these

32.

What determines the color of algae?

a)

Temperature

b)

Acidity of water

c)

Pigments

d)

Air Pollutants

33.

Algae have evolved specifically to harm humans

a)

True

b)

False

c)

Unclear

34.

What proportion of global oxygen is produced in aquatic systems

a)

10%

b)

25%

c)

50%

d)

75%

e)

90%

35.

Green Algae are:

a)

Bacteria

b)

Fungi

c)

Eukaryotes

d)

Archaea

e)

None of these

36.

Which HAB taxa was responsible for the 2014 Toledo water shutdown?

a)

Prochlorococcus spp.

b)

Alexandrium spp.

c)

Microcystis aeruginosa

d)

Emiliania huxleyi

e)

None of these

37.

Which is NOT a strength of industrial algal applications

a)

Can grow in substandard water

b)

Can grow in non-agricultural areas

c)

No need to add carbon

d)

Takes carbon dioxide from atmosphere

e)

All of these are strengths

38.

Giant Kelp obtains nutrients from

a)

Endosymbionts

b)

Sediment via roots

c)

Water via fronds

d)

Makes all its own

39.

Algae have xylem and phloem

a)

True

b)

False

c)

Some do

40.

A dead zone is a:

a)

low oxygen zone in water

b)

toxic zone of an environment

c)

zone where nothing can live

d)

None of these

e)

All of these

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