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Phytoremediation

Total questions: 16

Worksheet time: 9mins

Name
Class
Date
1.

Heavy metals are generally defined as metals with relatively high densities, atomic weights, or atomic numbers

a)

No

b)

Yes

2.

The list below are considered as heavy metals except:

a)

Lead (Pb)

b)

Mercury (Hg)

c)

Cadmium (Cd)

d)

Arsenic (As)

3.

Phytoremdiation basically refers to use plants and associated soil microbes to reduce the concentrations or toxic effects of contaminants in the environment

a)

No

b)

Yes

4.

All plants have the ability in accumulating all elements including heavy metals

a)

No

b)

Yes

5.

The metal hyperaccumulator plants is the term introduced by Brooks (1977) which refer to plants which can accumulate more than 10 mg metal/g dry mass in the leaves

a)

No

b)

Yes

6.

The series of the metals uptake by metal hyperaccumulators are as list below except:

a)

Root uptake

b)

Phloem loading

c)

Xylem loading

d)

Sequestration

7.

Phytoextraction is the technique involves in stabilizing soil contamination by complexation, precipitation or root absorption rather than clean up

a)

No

b)

Yes

8.

Phytoremediation involves 4 technique or process except:

a)

Phytoextraction

b)

Rhizofiltration

c)

Phytodegradation

d)

Phytoexclusion

9.

Pteris vitata is considered as Al hyperaccumulator and have the potential in accumulating more than 10mg Al/g

dry mass

a)

No

b)

Yes

10.

Below are some of the plants useful for phytoremediation except:

a)

Melastoma malabathricum

b)

Ptersi vitata

c)

Mimosa pudica

d)

Lepironia articulata

11.

Which of the following phtoremediation process is also called phytotransformation

a)

Phytodegradation

b)

Phytoextraction

c)

Phytofiltration

d)

None of the above

12.

Use of certain plant species to immobilize contaminants in the soil and groundwater through absorption and accumulation by roots is callled

a)

Phytofiltration

b)

Phytotransformation

c)

Phytostabilization

d)

None of the

13.

The breakdown of contaminants in the soil through microbial activity that is enhanced by the presence of the rhizosphere

a)

Rhizodegradation

b)

Phytostabilization

c)

Phtytovoltilation

d)

None of the above

14.

Phytoremediation is the process of using X to clear contamination from water and soil . What is X?

a)

Fungi

b)

Green plants

c)

Filters

d)

Microorganisms

15.

Plants that that absorb elemental form of metals from soil, and convert them biologically into gaseous species inside the plant, the process is called

a)

Phytostabilization

b)

Phytovolatilization

c)

Phytoextraction

d)

Detoxification

16.

It is when contaminants are taken into the food chain through uptake in living tissues.

a)

Bioaccumulation

b)

Biomagnification

c)

Bioremediation

d)

Phytoremediation