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Terpenoid: Quiz


Question 1: Many organisms manufacture terpenoids through the HMG-CoA reductase pathway, the pathway that also produces ________.
CholesterolTrans fatLow-density lipoproteinAtherosclerosis

Question 2: Terpenoids contribute to the scent of eucalyptus, the flavors of ________, cloves, and ginger, and the color of yellow flowers.
TeaCinnamonSpiceCinnamomum aromaticum

Question 3: These ________ can be found in all classes of living things, and are the largest group of natural products.

Question 4: Sometimes terpenoids are added to proteins, e.g., to enhance their attachment to the ________; this is known as isoprenylation.
Cell membraneVesicle (biology)Cell nucleusCell (biology)

Question 5: IPP and DMAPP are the end-products in either pathway, and are the precursors of isoprene, monoterpenoids (10-carbon), diterpenoids (20-carbon), ________ (40-carbon), chlorophylls, and plastoquinone-9 (45-carbon).

Question 6: Many of these are substrates for plant ________.
CYP3A421-HydroxylaseAromataseCytochrome P450

Question 7: The ________ and sterols in animals are biologically produced from terpenoid precursors.
MetabolismLipid metabolismSteroidTestosterone

Question 8: Terpenoids can be thought of as modified terpenes, wherein methyl groups have been moved or removed, or ________ atoms added.

Question 9: Terpenes are ________ resulting from the combination of several isoprene units.

Question 10: Most are multicyclic structures that differ from one another not only in ________ but also in their basic carbon skeletons.
Functional groupAlcoholAlkaneEthylene

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