Question

(a) Write the scientific name of the source plant and the part from which opioids are extracted. What is it commonly and chemically called?

(b) Where in the human body are it's specific receptors located. How do opioids affect the human body? [3 Marks]

Answer 1

(a) Opioids are extracted from the latex of plant called the opium poppy, whose scientific name is Papaver somniferum. [0.5 mark]
It is commonly called Heroin. [0.5 mark]
It is chemically called diacetylmorphine. [0.5 Marks]

(b) Receptors are present in the central nervous system and gastrointestinal tract. [0.5 mark]
Opioids act a depressant and slows down body functions. [1 Mark]