Diatoms & Algae as Environmental Monitor

Cell wall of diatoms are made of...

• cellulose

• glucan

• chitin

• silica

What is the kingdom of diatoms ?

• Protista

• Chromista

• Plantae

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

• centrales, pennales

• centrales, filamentous

• colonial, pennales

• colonial, filamentous

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

• Biography

• Biology

• Biomonitor

• Bioindicator

Algae is frequently used to biomonitor ...

• air quality

• biodiversity

• water quality

• noise quality

Algae is easily collected because they are ...

• sedentary

• small

• widespread

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

• Ceratoperidinium

• Cochlodinium

• Spirulina

• Fragilaria

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

• Mesosaprobic

• Oligosaprobic

• Polysaprobic

• Pinnularia biceps

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

• >3

• <1

• 1-3