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WorksheetsSeaweed
Total questions: 30
Worksheet time: 5mins
the root-like portion of the seaweed
thallus
pneumatocyst
stipe
holdfast
blades
How are seaweed classified or sorted in to groups?
By their pigment
By their length
By the water they are found in
By their toxins
Why are floats/bladders important for seaweed?
float closer to the sun to create shade
float closer to the sun to capture prey
float closer to the surface to collect oxygen
float closer to the sun for photosynthesis
Which products contains seaweed?
cosmetics
dairy products - icecream, processed cheeses, yogurts
fertilizers
toothpaste, shampoos, etc.
All of these
green pigment
fucoxanthin
chlorophyll
carotenoids
phycoblins
brown pigment
fucoxanthin
chlorophyll
carotenoids
phycoblins
red pigment
fucoxanthin
chlorophyll
carotenoids
phycoblins
What do seaweeds such as giant kelp provide beyond being a food source (primary producer)?
they protect coral reefs
they take salt out of the water
they create a habitat for many organisms
Two main reserve polysaccharide in brown seaweed
alginate
agar
fucoidan
carragenan
The formal name for seaweed; multicellular algae
seagrass
thallaus
macroalgae
microalgae
body of seaweed
stipe
macroalgae
thallus
blade
Which seaweed can withstand the least amount of light and can grow the deepest?
red
brown
green
blue
Which type of Algae has green pigments?
Chlorophyta
Phaeophyta
Rhodophyta
Merophyta
Which type of algae has red pigment?
Chlorophyta
Phaeophyta
Rhodophyta
Merophyta
Whyich type of algae has brown/yellow pigments?
Chlorophyta
Phaeophyta
Rhodophyta
Merophyta
A is the __.
thallus
holdfast
bladder/pneumatocyst
blade
stipe
E is the __.
thallus
holdfast
bladder/pneumatocyst
blade
stipe
A major ecological role of macroalgae in marine ecosystems is:
Sand formation
Producing methane
Providing habitat and oxygen
Eating plankton
Which factor does NOT significantly affect seaweed growth?
Light
Nutrients
Salinity
Wind direction
What is the structure that anchors macroalgae to the substrate?
Blade
Holdfast
Stipe
Pneumatocyst
Which macroalgae is often called "sea lettuce"?
Gracilaria
Halymenia
Ulva
Caulerpa
What's the name of this seaweed?
(a)
What's the name of this seaweed?
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What is the name of this seaweed?
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What is the name of this seaweed?
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What is the name of this seaweed?
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What is the name of this seaweed?
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What is the name of this seaweed?
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What is the name of this seaweed?
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What is the name of this seaweed?
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