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WorksheetsAlgae (1)
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
Algare are organisms that are ……………………
a)
capable of synthesising their food using chemical energy
b)
capable of synthesising their food using carbondioxide energy
c)
capable of synthesising their food using heat energy
d)
capable of synthesising their food using light energy
2.
Algae differ from fungi in what way?
a)
they are eukaryotic
b)
they are prokaryotic
c)
they have chitin cell wal
d)
they have cellulose cell wal
3.
Algae can associate with …………………..to form lichen
a)
cyanobacteria
b)
mucobacteria
c)
bacilariophyta
d)
zygomycota
4.
Chlamydomonas is a ……………………….
a)
fungi
b)
cyanobacteria
c)
multicellular algae
d)
unicellular algae
5.
Kelp is a ……………………………
a)
microscopic algae
b)
unicellular algae
c)
green algae
d)
macroscopic algae
6.
Under which of the following conditions will algae reproduce sexually?
a)
increased predation
b)
eutrophication
c)
increased nutrient availability
d)
reduced nutrient availability
7.
Which of the following is not a division of algae?
a)
Euglenophyta
b)
Chrysophyta
c)
Chlorophyta
d)
Pteridophyta
8.
Why are algae described as eukaryotic?
a)
they are unicellular
b)
they have cellulose cell wall
c)
they have cirular DNA
d)
they have linear DNA
9.
What distinguishses chlorophyta from monocotyledonous plants?
a)
they possess more chlorophyl
b)
they can photosynthesise
c)
they possess cellulose cell wall
d)
they lack vascular bundles
10.
Euglena belongs to which division of algae?
a)
chlorophyta
b)
rhodophyta
c)
phaeophyta
d)
euglenophyta
11.
reproduction in euglena is by ………………….
a)
spore formation
b)
fragmentation
c)
budding
d)
binary fission
12.
the eye spot of euglena is for the purpose of …………….
a)
trapping light for photosynthesis
b)
trapping light for reproduction
c)
seeing and evading predators
d)
detecting light to maximise photosynthesis
13.
which of the following algae usually lacks flagella?
a)
euglena
b)
chlamydomonas
c)
dinoflagellates
d)
kelp
14.
what structure does euglena use for excretion/
a)
gullet
b)
food vacuole
c)
waste vacuole
d)
contractile vacuole
15.
Which of the following is not a type of chlorophyl found in algae?
a)
chlorophyl a
b)
chlorophyl b
c)
xanthophyls
d)
rhodophyll
16.
Volvox and chlorella belong to which division of algae?
a)
phaeophyta
b)
rhodophyta
c)
pteridophyta
d)
chlorophyta
17.
stoneworts are algae that …………………………
a)
have silicon within their cell wall
b)
have concrete slabs within their cell wall
c)
have stones within their cell wall
d)
have calcium carbonate within their cell walls
18.
fucoxanthin is a pigment that give some alga which colour?
a)
green color
b)
black color
c)
brick red color
d)
golden-brown color
19.
which of the following algae possess air bladder for buoyancy
a)
chlorophyta
b)
spirogyra
c)
mucophyta
d)
phaeophyta
20.
which algae is responsible for producing a characteristic reddish color in marine waters?
a)
chlorophyta
b)
diatoms
c)
liverworts
d)
pyrrophyta
21.
association between algae and fungi is a ……………………..association
a)
parasitic
b)
symbiotic
c)
legalistic
d)
mutualistic
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