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प्रश्न
Many secondary metabolites of plants have medicinal properties. It is their misuse that creates problems. Justify the statement with an example.
उत्तर
Several plants, fruits and seeds having hallucinogenic properties and have been used for hundreds of years in folk-medicine, religious ceremonies and rituals all over the globe. When these are taken for a purpose other than medicinal use or in amounts/frequency that impairs one’s physical, physiological or psychological functions, it constitutes drug abuse.
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संबंधित प्रश्न
A typical value of resting membrane potential is ______.
Heroin is ______
Which of the following affect the central nervous system?
Tobacco consumption is known to stimulate secretion of adrenaline and nor-adrenaline. The component causing this could be ______.
The outline structure of a drug is given below.
- Which group of drugs does this represent?
- What are the modes of consumption of these drugs?
- Name the organ of the body which is affected by consumption of these drugs.
From which plant cannabiniods are obtained? Name any two cannabinoids. Which part of the body is effected by consuming these substances?
What are lifestyle diseases? How are they caused? Name any two such diseases.
The data below shows the concentration of nicotine smoked by a smoker taking 10 puffs/minute.
(a) With reference to the above graph explain the concentration of nicotine in blood at 10 minutes.
(b) How will this affect the concentration of carbon monoxide and haembound oxygen at 10 minutes?
(c) How does cigarette smoking result in high blood pressure and increase in heart rate?
OR
(c) How does cigarette smoking result in lung cancer and emphysema?
State the mode of action of cocaine on the human body. Write the scientific name of the source plant it is obtained from.
- Assertion: Smoking can raise blood pressure and increase heart rate.
- Reason: Nicotine stimulates adrenal glands to release adrenaline and noradrenaline into the blood circulation, both of which raise blood pressure and increase heart rate.
