WorksheetsIUP Remediation Post Test
Total questions: 50
Worksheet time: 29mins
What is the purpose of propagation?
grow plants both in soil and water media
observe plant growth chemically
provide plant stock for remediation
maintain soil and water by growing phytoremediation plants
The parts that are measured in plants during propagation include...
root length
stem height
leaf width
seed weight
A plant will be prepared through propagation. It was observed that the root length on day 0 was 4 cm and day 4 was 12 cm. What is the root growth rate?
1 cm/day
2 cm/day
3 cm/day
4 cm/day
A simple plant growth index that shows the increase in size over time is called...
time-based growth rate
partial growth rate
physical growth rate
absolute growth rate
The weight used to determine AGR is...
dry weight
wet weight
root weight
stem weight
Parameters that can be observed in plant propagation experiments include...
chemical parameter
physical parameter
biological parameter
hydrological parameter
Wet and dry weight measurements were carried out on plants that had been grown through propagation
true
false
The greater the concentration of pollutants in the media, the heavier the wet weight and dry weight of the plant
true
false
Dry weight measurement can only be done in the laboratory because it requires equipment such as an oven
true
false
The instrument used to measure the wet and dry weight of plants is…
ruler
analytical balance
aluminum foil container
oven
The following tools and materials are needed for the polluted environmental status experiment, except
Plastic bottle 1500 mL
Contaminated soil samples
1000 mL PET Bottle
Yeast
In the practice of polluted environmental status, the purpose of adding sucrose solution in 1000 mL PET sample bottles is...
as a diluent for polluted water samples
as a source of microorganisms that play a role in fermentation in experiments
as a provider of nutrients for microorganisms for the respiration process
as a reference to determine whether the sample solution being tested is contaminated or not
What is used as a reference in observing CO2 gas in a polluted environmental status experiment?
Reduction of water level in reactor bottle 1500 mL
Increase in the number of microorganisms
Decreased water level in polluted water samples
Decreased water level in the blank solution
In a polluted environmental status experiment, a medium is said to be polluted if the CO2 gas produced is greater than in an unpolluted medium
true
false
In the polluted environmental status experiment, the function of yeast is…
source of microorganism nutrition
source of microorganisms
source of oxygen
source of pollutant
In polluted environmental status principal, polluted media interferes the process of bacterial respiration which causes less CO2 gas to be produced.
true
false
The source of microorganism nutrition in the polluted environmental status experiment comes from…
sugar
pollutant
yeast
PDAM water
Here are some types of adsorbents that can be used for the adsorption process
activated carbon
bauxite
activated alumina
sponge
If the adsorbent is a solid substance to adsorb pollutants, the pollutant is called...
adsorband
adsorbet
adsorbate
adsorbent
Commonly used adsorption isotherm models include
freundlich
BET
langmuir
hydrous
The purpose of measurement using a spectrophotometer is to determine the concentration of the sample solution based on the calibration curve of the relationship between concentration and…
time
absorbance
adsorption kinetics
efficiency
What method is used in the adsorption practicum video?
batch
continue
CSTR
column
The greater the concentration of the sample solution, the greater the absorbance value.
true
false
The longer the contact time between the adsorbent and the adsorbate, the lower the adsorbent concentration.
true
false
RFT is the final stage of the pollutant toxicity test on plants
true
false
In the RFT practicum, heavy metal stock solutions must be prepared using ionized water
true
false
The initial stage carried out on plants before carrying out the Range Finding Test is...
plant climatization stage
plant inclimatization stage
plant acclimatization stage
plant preclimatization stage
In the RFT practicum, what volume of clean water is needed to make 1 L of a 5% concentration of pollutant solution?
500 mL
850 mL
950 mL
1000 mL
In the RFT practicum, 1 L of pollutant solution with a concentration of 20% consists of...
200 mL contaminants and 800 mL water
800 mL contaminants and 200 mL water
900 mL contaminants and 100 mL water
100 mL contaminants and 900 mL water
The toxic response of plants that arise after carrying out the RFT test can be characterized by the following concentrations
Lethal Concentration
Hazard Concentration
Acute Concentration
Effective Concentration
Parameters observed in the RFT are...
chemical changes that occur in the medium
chemical changes that occur in plants
physical changes that occur in the media
physical changes that occur in plants
The principle of RFT is….test on pollutants
water holding capacity
toxicity
durability
purification ability
In the spike soil practicum, the inorganic contaminant used is…
used oil
HCO3
Na2SO4
Pb(NO3)2
The stock solution of heavy metals in spike soil practicum must be prepared with ionized water.
true
false
If the WHC value is 26 mL/100 gram dry weight of sand, what volume of water is needed for a tank containing 3 kg of sand?
0,086 L
0,115 L
0,78 L
1,15 L
Soil spiking is a soil remediation process that contaminated with both organic and inorganic materials.
true
false
In the spike soil practicum, the organic contaminants used are…
used oil
n-hexana
Na2SO4
Pb(NO3)2
In the spike soil experiment, to make soil polluted with organic materials, n-hexane is needed as a solvent for contaminants.
true
false
In the spike soil experiment, to make soil polluted with inorganic materials, n-hexane is needed as a solvent for contaminants.
true
false
Soil washing is an.... soil washing process
in vivo
in situ
ex vivo
ex situ
The ratio of soil: washing water used in the soil washing process is…
1:10
1:15
1:20
1:25
What is meant by "natant" in soil washing practicum is soil that has been washed.
true
false
In the process of extracting the results of soil washing for soil contaminated with inorganic materials, a centrifuge is used at a speed of...
30 rpm
300 rpm
3000 rpm
30000 rpm
In the batch soil washing process, 2 solutions are used as washing water, which are...
n-hexane
HNO3
EDTA
DCM
In the process of extracting soil contaminated with organic matter from soil washing, 2 types of solutions are added, including...
n-hexane
Na2SO4
EDTANa2
DCM
In the process of extracting soil contaminated with inorganic materials from soil washing, ... solution is/are added
n-hexane
Na2SO4
EDTANa2
DCM
The following tools are used in the process of extracting soil contaminated with inorganic materials from soil washing, except…
rotatory agitator
ultrasonic cleaner
centrifuge
extraction bottle
WHC is an acronym for…
Water Holded Capacity
Water Holding Capacity
Water Hauled Capacity
Water Halling Capacity
The tool used to determine the absorbance in the adsorption practicum is...
Gravimetry
TDS Meter
Spectrophotometer
pH Meter
In measuring wet weight, what should be done after the plant is taken from the soil medium?
cutting plant parts such as roots, stems and roots
measuring the whole plant from the tip of the leaf to the tip of the root
clean the soil attached to the plant roots
put the plant in the oven at a temperature of 105 oC
