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Algae

Total questions: 16

Worksheet time: 9mins

Name
Class
Date
1.

Why is algae not a plant?

a)

It does not have roots.

b)

It floats.

c)

It does not have roots and it floats.

2.

Mode of Nutrition in Algae is

a)

Heterotrophic

b)

Autotrophic

c)

Both Autotrophic and Heterotrophic

d)

None

3.

What determines the color of algae?

a)

Temperature

b)

Acidity of water

c)

Pigments

d)

Air Pollutants

4.

Green algae can be found in which of the following forms?

a)

unicellular

b)

colonial

c)

filamentous

d)

all of the above

5.

Algae body lacks distinguishable roots, leaves, and trunk. What is the name of algae body?

a)

Thillus

b)

Thallus

c)

Thollus

d)

Thalus

6.

What phylum does brown algae belong to?

a)

rhodophyta

b)

chlorophyta

c)

phaeophyta

d)

fucucillin

7.

What phylum does green algae belong to?

a)

Chlorophyta

b)

Phaeophyta

c)

Rhodophyta

8.

Algae has a specific outgrowth from their body that they use to fixate to the surface of rock and sediment.

Name this out growth.

a)

Rhizoids

b)

Rizoids

c)

Rizoidz

d)

Raisins

9.

This multi-cellular filamentous algae prefers to grow in fresh water and it creates cauliflower mass.

a)

Chlorella

b)

Kelp

c)

Volvox

d)

Spirogyra

10.

This algae exists as a colony in contaminated waters, where it serves as a good bio-indicator.

a)

Chlorella

b)

Volvox

c)

Kelp

d)

Spirogyra

11.

Agar-Agar is obtained from

a)

Gelidium

b)

Polysiphonia

c)

Fucus

d)

Laminaria

12.

Red colour of the red algae is due to the presence of

a)

Fucoxanthin

b)

C phycocyanin

c)

Carotene

d)

Phycoerythrin

13.

What is the storage product of most algae?

a)

Cellulose

b)

Glycogen

c)

Starch and oil

d)

Fats

14.

Which of the following are brown algae?

a)

sargassum

b)

volvox

c)

euglena

d)

dinoflagellates

15.
Bioluminescent cells with two unequal flagella are called
a)
Diatoms
b)
Dinoflagellates
c)
Spirogyra algae strands
d)
Golden algae
16.
Which type of algae can grow in the deepest water depths?
a)
red algae
b)
brown algae
c)
golden algae
d)
green algae