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Diatoms & Algae as Environmental Monitor

Total questions: 9

Worksheet time: 2mins

Name
Class
Date
1.

Cell wall of diatoms are made of...

a)

cellulose

b)

glucan

c)

chitin

d)

silica

2.

What is the kingdom of diatoms ?

a)

Protista

b)

Chromista

c)

Plantae

3.

Two basic forms of diatoms are ... and ....

a)

centrales, pennales

b)

centrales, filamentous

c)

colonial, pennales

d)

colonial, filamentous

4.

What is used to quantify information on the quality of the environment ?

a)

Biography

b)

Biology

c)

Biomonitor

d)

Bioindicator

5.

Algae is frequently used to biomonitor ...

a)

air quality

b)

biodiversity

c)

water quality

d)

noise quality

6.

Algae is easily collected because they are ...

a)

sedentary

b)

small

c)

widespread

7.

What is the genus of algae that caused red tide in Sepanggar Bay ?

a)

Ceratoperidinium

b)

Cochlodinium

c)

Spirulina

d)

Fragilaria

8.

What is the zone in the Saprobic Sysytem that refers to poor quality ?

a)

Mesosaprobic

b)

Oligosaprobic

c)

Polysaprobic

d)

Pinnularia biceps

9.

In Shannon–Wiener’s diversity index, what index value shows a clean water quality ?

a)

>3

b)

<1

c)

1-3