22 Questions
What is the main objective of the experiment discussed in this module?
To examine the pigments extracted from Moringa oleifera leaves and their separation
What is the local name of the Moringa oleifera leaves used in this experiment?
Malunggay
What is the primary purpose of using an Erlenmeyer flask in this procedure?
To contain the powder and acetone mixture during swirling
What is the likely reason for decanting the dark green solution into an evaporating dish?
To allow for evaporation of the acetone
What is the purpose of swirling the mixture in the Erlenmeyer flask?
To dissolve the powder in the acetone
What is the likely color of the initial powder?
White or off-white
What is the primary function of the iron stand in the given experiment?
To support the pipette
What is the role of acetone in this procedure?
To dissolve the powder and create a solution
What is the recommended thickness of the sand layer in the column?
2-3 mm
What is the purpose of using sand in the column?
To filter out impurities
What would be the consequence of using a thicker layer of sand than recommended?
Increased pressure on the pipette
What would happen if the pipette was not clamped to the iron stand?
The pipette would fall over
What is the primary concern when handling a TLC plate?
Impurities and skin oil might affect the results
What could be the consequence of impurities and skin oil on a TLC plate?
Unreliable results
Why is it recommended to only touch the margins of a TLC plate?
To prevent contamination of the plate
What type of results can be expected if a TLC plate is contaminated with impurities and skin oil?
Unreliable results
Why is careful handling of a TLC plate important?
To ensure reliable and accurate results
What is the primary advantage of using an organic photovoltaic integrator with three complementary absorption bands?
To enhance the overall efficiency
What is the likely result of using a photovoltaic integrator with only one absorption band?
Decreased efficiency due to reduced absorption range
What is the primary characteristic of an organic photovoltaic integrator?
Organic composition
What is the likely benefit of enhancing the efficiency of organic photovoltaic integrators?
Increased energy output
What is the significance of three complementary absorption bands in an organic photovoltaic integrator?
To broaden the range of wavelengths that can be absorbed
This quiz is based on an experiment that involves the extraction and separation of pigments from malunggay leaves. It covers the methods and results of the experiment, as well as the analysis of the findings. Test your knowledge of this biology experiment!
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