Read the following statements and choose the correct option 1.Commonly abused drugs include opioids and cannabinoids only. 2.Most of these drugs are derived from flowering plants, with some obtained from bacteria. 3.Opioids bind to specific opioid receptors in the central nervous system and gastrointestinal tract. 4.Heroin, also known as smack, is chemically diacetylmorphine and is obtained by acetylation of morphine

Step-by-step solution

The drugs, which are commonly abused are opioids, cannabinoids and coca alkaloids. Majority of these are obtained from flowering plants. Some are obtained from fungi. Opioids are the drugs, which bind to specific opioid receptors present in our central nervous system and gastrointestinal tract. Heroin (Figure 7.7), commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine