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Chlorophyll: Quiz


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Question 1: Chlorophyll is a chlorin pigment, which is structurally similar to and produced through the same metabolic pathway as other porphyrin pigments such as ________.
MetalloproteinHemeCofactor (biochemistry)Adenosine triphosphate

Question 2: Chlorophyll is vital for ________, which allows plants to obtain energy from light.
Cell wallPlant physiologyAlgaePhotosynthesis

Question 3: In plants, chlorophyll may be synthesized from succinyl-CoA and ________, although the immediate precursor to chlorophyll a and b is protochlorophyllide.
AlanineGlutamic acidGlycineSerine

Question 4: & Lisa Sagliano used ________ of liquid chlorophyll at the University of Florida and stabilized it as a powder, preserving it for future use.
Drying (food)Freeze dryingSmoking (cooking)Food preservation

Question 5: The general structure of chlorophyll a was elucidated by Hans Fischer in 1940, and by 1960, when most of the stereochemistry of chlorophyll a was known, ________ published a total synthesis of the molecule as then known.
Willard LibbyRobert Burns WoodwardJoshua LederbergLinus Pauling

Question 6: The function of the vast majority of chlorophyll (up to several hundred molecules per photosystem) is to absorb light and transfer that light energy by resonance energy transfer to a specific chlorophyll pair in the ________ of the photosystems.
Cholesterol side-chain cleavage enzymeCytochrome b6f complexPyruvate dehydrogenase complexPhotosynthetic reaction centre

Question 7: At the center of the chlorin ring is a magnesium ________.
Half cellIonLithium-ion batteryElectrolyte

Question 8: Chlorophyll molecules are specifically arranged in and around photosystems which are embedded in the thylakoid membranes of ________.
PhotosynthesisChloroplastPlastidCell wall

Question 9: In ________, the last step, conversion of protochlorophyllide to chlorophyll, is light-dependent and such plants are pale (etiolated) if grown in the darkness.
Flowering plantEmbryophyteGymnospermFern

Question 10: For the structures depicted in this article, some of the ________ attached to the Mg2+ center are omitted for clarity.
Coordination complexHSAB theoryLigandCrystal field theory


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