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class 10 biology chapter 9 mcqs

Biology class 10

Chapter No. 9

Pharmacology

MCQs (1-100)


  1. Pharmacology is the study of:
    a) Diseases
    b) Hormones
    c) Drugs and their effects
    d) Blood circulation
    Answer: c

  2. The branch of pharmacology that deals with the origin and nature of drugs is called
    a) Pharmacodynamics
    b) Pharmacokinetics
    c) Pharmacognosy
    d) Toxicology
    Answer: c

  3. Which branch of pharmacology studies the effects of drugs on the body?
    a) Pharmacodynamics
    b) Pharmacokinetics
    c) Pharmaceutics
    d) Immunology
    Answer: a

  4. The study of how drugs move through the body is called
    a) Pharmacognosy
    b) Pharmacodynamics
    c) Pharmacokinetics
    d) Biochemistry
    Answer: c

  5. The science of poisons and their effects is
    a) Physiology
    b) Pharmacology
    c) Pathology
    d) Toxicology
    Answer: d

  6. A drug that reduces pain is known as:
    a) Antibiotic
    b) Analgesic
    c) Antipyretic
    d) Anesthetic
    Answer: b

  7. Antibiotics are used to treat:
    a) Viral infections
    b) Bacterial infections
    c) Fungal infections
    d) Parasitic infections
    Answer: b

  8. Paracetamol is commonly used as a(n):
    a) Antibiotic
    b) Antiseptic
    c) Pain reliever and fever reducer
    d) Antiviral
    Answer: c

  9. The term "dose" refers to
    a) Type of drug
    b) Quantity of drug administered
    c) Drug side effects
    d) Drug discovery process
    Answer: b

  10. Which of the following is a side effect of drug use?
    a) Improved health
    b) Unexpected harm
    c) Increased energy
    d) Balanced immunity
    Answer: b

  11. The route by which a drug is taken into the body is called
    a) Absorption
    b) Administration
    c) Excretion
    d) Diffusion
    Answer: b

  12. Oral administration of drugs means
    a) Injection
    b) Skin patch
    c) Through the mouth
    d) Nasal spray
    Answer: c

  13. Which organ primarily metabolizes drugs?
    a) Kidney
    b) Lungs
    c) Liver
    d) Heart
    Answer: c

  14. Excretion of drugs mostly occurs through the
    a) Lungs
    b) Skin
    c) Kidney
    d) Liver
    Answer: c

  15. A drug that lowers body temperature is
    a) Antiseptic
    b) Antipyretic
    c) Anesthetic
    d) Sedative
    Answer: b

  16. Penicillin was discovered by
    a) Louis Pasteur
    b) Robert Koch
    c) Alexander Fleming
    d) Watson and Crick
    Answer: c

  17. A drug that kills or inhibits the growth of microorganisms is
    a) Vaccine
    b) Antiseptic
    c) Antibiotic
    d) Painkiller
    Answer: c

  18. Which of these is an example of an over-the-counter (OTC) drug?
    a) Morphine
    b) Paracetamol
    c) Insulin
    d) Chemotherapy drugs
    Answer: b

  19. Drugs that can be addictive and cause dependence are known as:
    a) OTC drugs
    b) Narcotic drugs
    c) Antibiotics
    d) Hormones
    Answer: b

  20. Vaccines work by
    a) Killing bacteria
    b) Reducing pain
    c) Stimulating immune response
    d) Lowering blood pressure
    Answer: c

  21. A drug that induces sleep is called
    a) Analgesic
    b) Sedative
    c) Antiseptic
    d) Antibiotic
    Answer: b

  22. The first phase of drug action in the body is
    a) Excretion
    b) Absorption
    c) Metabolism
    d) Distribution
    Answer: b

  23. The term “half-life” of a drug means
    a) Time to eliminate drugs.
    b) Time for 50% of drug to be metabolized
    c) Duration of drug storage
    d) Reaction time of drug
    Answer: b

  24. Which of the following is used for anesthesia?
    a) Paracetamol
    b) Morphine
    c) Ether
    d) Insulin
    Answer: c

  25. Which of the following drugs is used to treat diabetes?
    a) Antibiotics
    b) Insulin
    c) Antiseptics
    d) Paracetamol
    Answer: b

  1. Drugs given by injection are said to be administered:
    a) Orally
    b) Topically
    c) Parenterally
    d) Rectally
    Answer: c

  2. Which of the following drugs is used to reduce high blood pressure?
    a) Insulin
    b) Antihistamine
    c) Antihypertensive
    d) Antipyretic
    Answer: c

  3. Which of the following is an antimalarial drug?
    a) Quinine
    b) Paracetamol
    c) Morphine
    d) Penicillin
    Answer: a

  4. Which of these is a common side effect of antibiotics?
    a) Toothache
    b) Allergic reactions
    c) Improved digestion
    d) Faster healing
    Answer: b

  5. Which is a source of natural drugs?
    a) Plants
    b) Animals
    c) Microorganisms
    d) All of the above
    Answer: d

  6. The use of drugs in the correct manner is called:
    a) Drug abuse
    b) Drug administration
    c) Rational drug use
    d) Drug resistance
    Answer: c

  7. A placebo is:
    a) A painkiller
    b) A real drug
    c) A harmless, inactive substance
    d) A sedative
    Answer: c

  8. The minimum dose of a drug that shows its effect is called:
    a) Toxic dose
    b) Maximum dose
    c) Effective dose
    d) Minimal dose
    Answer: c

  9. Which organ is most affected in drug overdose?
    a) Kidney
    b) Skin
    c) Pancreas
    d) Spleen
    Answer: a

  10. A drug that produces loss of sensation is known as:
    a) Analgesic
    b) Antihistamine
    c) Anesthetic
    d) Antiviral
    Answer: c

  11. Which of these is used to treat fungal infections?
    a) Antibiotic
    b) Antifungal
    c) Antiviral
    d) Antiseptic
    Answer: b

  12. Which is NOT a drug form?
    a) Tablet
    b) Capsule
    c) Injection
    d) Thermometer
    Answer: d

  13. Which drug is obtained from the poppy plant?
    a) Aspirin
    b) Morphine
    c) Insulin
    d) Quinine
    Answer: b

  14. What is the function of anti-inflammatory drugs?
    a) Reduce fever
    b) Fight infection
    c) Reduce swelling and inflammation
    d) Kill viruses
    Answer: c

  15. Antibiotic resistance occurs when:
    a) Drugs expire
    b) Bacteria mutate
    c) Virus kills bacteria
    d) Painkillers are used
    Answer: b

  16. A drug’s therapeutic index measures:
    a) Dosage form
    b) Safety margin
    c) Taste
    d) Potency
    Answer: b

  17. Aspirin is commonly used as a:
    a) Muscle relaxant
    b) Blood thinner and pain reliever
    c) Antibiotic
    d) Stimulant
    Answer: b

  18. Antiseptics are used to:
    a) Treat cancer
    b) Prevent infections on wounds
    c) Build immunity
    d) Kill worms
    Answer: b

  19. Which one of the following is a narcotic drug?
    a) Alcohol
    b) Paracetamol
    c) Morphine
    d) Penicillin
    Answer: c

  20. Overuse of antibiotics may lead to:
    a) Stronger immunity
    b) Drug resistance
    c) Faster recovery
    d) Increase in appetite
    Answer: b

  21. The term “broad-spectrum antibiotic” means:
    a) Kills only one type of bacteria
    b) Effective against viruses
    c) Kills a wide range of bacteria
    d) Prevents all diseases
    Answer: c

  22. A drug that causes a calming effect is called:
    a) Narcotic
    b) Stimulant
    c) Sedative
    d) Antibiotic
    Answer: c

  23. What is the full form of OTC in pharmacology?
    a) Over The Counter
    b) Over Time Cure
    c) Oral Tablet Composition
    d) Organized Treatment Code
    Answer: a

  24. Which of the following is a prescription drug?
    a) Candy
    b) Insulin
    c) Vitamin C
    d) Aspirin
    Answer: b

  25. What is the study of how drugs interact with the body called?
    a) Physiology
    b) Pharmacodynamics
    c) Pharmacognosy
    d) Pathology
    Answer: b

  26. Which of the following is used in the treatment of cancer?
    a) Paracetamol
    b) Chemotherapy drugs
    c) Quinine
    d) Amoxicillin
    Answer: b

  27. Which route of drug administration is the fastest?
    a) Oral
    b) Rectal
    c) Intravenous
    d) Subcutaneous
    Answer: c

  28. Antiviral drugs are used to treat:
    a) Bacterial diseases
    b) Fungal diseases
    c) Viral infections
    d) Nutritional disorders
    Answer: c

  29. Which drug is used in asthma treatment?
    a) Ibuprofen
    b) Salbutamol
    c) Paracetamol
    d) Chloramphenicol
    Answer: b

  30. A stimulant drug causes:
    a) Sleepiness
    b) Decreased heart rate
    c) Increased alertness
    d) Pain relief
    Answer: c

  31. What is bioavailability in pharmacology?
    a) Absorption rate of drug
    b) Elimination of drug
    c) Storage of drug
    d) Drug toxicity
    Answer: a

  32. Which of the following is used to prevent motion sickness?
    a) Penicillin
    b) Antihistamine
    c) Antacid
    d) Antiseptic
    Answer: b

  33. A drug used to reduce cholesterol is:
    a) Antacid
    b) Statin
    c) Aspirin
    d) Steroid
    Answer: b

  34. Which of these is not a therapeutic use of drugs?
    a) Diagnosing disease
    b) Treating disease
    c) Recreational use
    d) Preventing disease
    Answer: c

  35. An overdose of paracetamol primarily affects the:
    a) Brain
    b) Liver
    c) Heart
    d) Lungs
    Answer: b

  36. Which of the following drugs is inhaled as a gas?
    a) Chloroform
    b) Alcohol
    c) Morphine
    d) Salbutamol
    Answer: d

  37. Which drug is known as a painkiller?
    a) Insulin
    b) Paracetamol
    c) Saline
    d) Quinine
    Answer: b

  38. A hormone-based drug used by diabetic patients is:
    a) Insulin
    b) Epinephrine
    c) Thyroxine
    d) Estrogen
    Answer: a

  39. Corticosteroids are used to treat:
    a) Cough
    b) Inflammation
    c) Infection
    d) Hypertension
    Answer: b

  40. Drug interaction means:
    a) Only one drug is working
    b) Combined drug effects in the body
    c) Drug elimination
    d) Dosage form of the drug
    Answer: b

  41. Which of these is NOT a function of drugs?
    a) Cure diseases
    b) Prevent diseases
    c) Cause diseases
    d) Relieve symptoms
    Answer: c

  42. Drugs that prevent allergic reactions are called:
    a) Analgesics
    b) Antibiotics
    c) Antihistamines
    d) Antacids
    Answer: c

  43. What is the form of drug injected under the skin called?
    a) Intravenous
    b) Intramuscular
    c) Subcutaneous
    d) Inhalation
    Answer: c

  44. The discipline that deals with harmful effects of chemicals on the body is:
    a) Pathology
    b) Pharmacology
    c) Toxicology
    d) Microbiology
    Answer: c

  45. Which organ is responsible for filtering drugs from the blood?
    a) Lungs
    b) Heart
    c) Kidney
    d) Stomach
    Answer: c

  46. Which drug was historically used as a local anesthetic and later banned due to abuse?
    a) Aspirin
    b) Cocaine
    c) Ibuprofen
    d) Diazepam
    Answer: b

  47. What is the role of antacids?
    a) Increase stomach acid
    b) Neutralize stomach acid
    c) Cause acidity
    d) Promote ulcers
    Answer: b

  48. A drug that alters mood and behavior is called a:
    a) Hormone
    b) Psychoactive drug
    c) Vitamin
    d) Antibiotic
    Answer: b

  49. A person becomes physically dependent on a drug through:
    a) Regular exercise
    b) Balanced diet
    c) Repeated use
    d) Vaccination
    Answer: c

  50. Which vitamin supplement is often prescribed with antibiotics?
    a) Vitamin A
    b) Vitamin D
    c) Vitamin K
    d) Vitamin C
    Answer: d

  51. The science of developing new drugs is known as:
    a) Drug discovery
    b) Immunology
    c) Pathology
    d) Histology
    Answer: a

  52. Which of the following drugs acts as a bronchodilator?
    a) Aspirin
    b) Paracetamol
    c) Salbutamol
    d) Insulin
    Answer: c

  53. Which of the following drugs is anti-diarrheal?
    a) Loperamide
    b) Amoxicillin
    c) Ibuprofen
    d) Diazepam
    Answer: a

  54. Which is not a route of drug administration?
    a) Oral
    b) Intravenous
    c) Visual
    d) Rectal
    Answer: c

  55. Caffeine is classified as a:
    a) Depressant
    b) Stimulant
    c) Antibiotic
    d) Antihistamine
    Answer: b

  56. A common anti-allergic drug is:
    a) Ibuprofen
    b) Cetirizine
    c) Quinine
    d) Penicillin
    Answer: b

  57. Which drug is used to treat tuberculosis?
    a) Isoniazid
    b) Paracetamol
    c) Aspirin
    d) Tetracycline
    Answer: a

  58. Drug expiration refers to:
    a) Drug use instructions
    b) Shelf life
    c) How fast drug acts
    d) How drug is stored
    Answer: b

  59. What type of drug is diazepam?
    a) Stimulant
    b) Sedative
    c) Antiviral
    d) Antibiotic
    Answer: b

  60. Antipyretic drugs are used to treat:
    a) Pain
    b) Fever
    c) Allergy
    d) Vomiting
    Answer: b

  61. Which drug is administered in epilepsy?
    a) Insulin
    b) Diazepam
    c) Amoxicillin
    d) Morphine
    Answer: b

  62. A drug's potency refers to:
    a) Side effects
    b) Dose needed for effect
    c) Duration of action
    d) Expiration date
    Answer: b

  63. How are transdermal drugs administered?
    a) Through nose
    b) Via injection
    c) Through skin patches
    d) Orally
    Answer: c

  64. Drug withdrawal symptoms occur when:
    a) Dosage is increased
    b) Drug is continued
    c) Drug use is stopped suddenly
    d) Drug is administered orally
    Answer: c

  65. Pharmacists are responsible for:
    a) Making surgical tools
    b) Prescribing food
    c) Dispensing drugs
    d) Performing surgery
    Answer: c

  66. Which drug is used to suppress coughing?
    a) Expectorant
    b) Antitussive
    c) Bronchodilator
    d) Analgesic
    Answer: b

  67. Ibuprofen is a type of:
    a) Antibiotic
    b) Antifungal
    c) NSAID (Non-steroidal anti-inflammatory drug)
    d) Antiviral
    Answer: c

  68. Which of the following is a common tranquilizer?
    a) Amphetamine
    b) Diazepam
    c) Caffeine
    d) Nicotine
    Answer: b

  69. What is meant by drug tolerance?
    a) Lower effect at same dose
    b) Severe side effects
    c) Fast absorption
    d) Allergy to drugs
    Answer: a

  70. Digitalis is obtained from:
    a) Willow bark
    b) Foxglove plant
    c) Poppy plant
    d) Cinchona bark
    Answer: b

  71. Antibiotics are ineffective against:
    a) Bacteria
    b) Viruses
    c) Fungi
    d) Protozoa
    Answer: b

  72. Which of these helps reduce acidity in the stomach?
    a) Analgesics
    b) Antacids
    c) Antihistamines
    d) Antivirals
    Answer: b

  73. A drug that stimulates immune response is a:
    a) Painkiller
    b) Antihistamine
    c) Vaccine
    d) Sedative
    Answer: c

  74. Which of these drugs is NOT used in human medicine?
    a) Penicillin
    b) Ibuprofen
    c) DDT
    d) Paracetamol
    Answer: c

  75. A drug that helps in digestion is:
    a) Antibiotic
    b) Antacid
    c) Digestive enzyme
    d) Antiseptic
    Answer: c










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