Final answer:
The alkaloids found in the opium poppy are morphine and codeine, which are derived from the plant's latex, not from the seeds, leaves, roots, or flowers.
Step-by-step explanation:
The alkaloids found in the opium poppy are morphine and codeine. These compounds are part of a class of secondary plant compounds that serve as chemical defenses against pests that may feed on the opium poppy plant. Morphine and codeine are obtained from the sap of the opium poppy, not from the seeds, leaves, roots, or flowers. Specifically, opium is a resinous latex that is collected from the seed pods of the opium poppy before they fully ripen. Chemically modifying morphine can produce heroin, which is a much more potent and addictive opioid.