Chemistry · Biology

Pharmacology and Therapeutics

1,643 Questions

Engage with critical pharmacology and therapeutics questions covering drug classifications and therapeutic mechanisms. Topics include chemical absorption, medication formulations, and pharmacogenomics. This collection is useful for students preparing for medical entrance, nursing, and science competitive examinations.

Chemical absorption routesDrug formulation typesMedication mechanismsEnzyme inhibitorsPharmacogenomic tests

Pharmacology and Therapeutics Questions

Multiple choice drug-target interaction pharmaceutical products and drug action medicinal chemistry chemistry in everyday life chemistry body defense system

Drugs that bind to the receptor sites and inhibit its natural function are called analgesics.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Drugs that bind to the receptor site and inhibit its natural function are called Antagonists. These are useful when blocking of message is required. So, the statement is false.

Multiple choice biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

Ephedrine (medicine) is obtained from __A, it is effective medicine in _B_ :-

  1. A : Gnetum, B : Fever

  2. A : Ephedra, B : Asthma

  3. A : Pinus, B : Chilgoza

  4. A : Claviceps , B : Cough
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ephedra is an alkaloid chemical compound traditionally obtained from the plant Ephedra sinica. Ephedrine is a medication and stimulant. It is often used to prevent low blood pressure during spinal anesthesia. It has also been used for asthma, narcolepsy, and obesity but is not the preferred treatment. It is of unclear benefit in nasal congestion.


So, the correct option is 'Option B'.

Multiple choice biology food and health adulteration of food food adulteration food and human health

A preservative which can cause reaction in asthmatics, allergy and hyperactivity in children is____________.

  1. Sodium benzoate

  2. Sodium metabisulphite

  3. Garboxy-methyl cellulose

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both sodium benzoate and sodium metabisulphite are well-documented preservatives that can trigger asthma attacks, allergic reactions, and hyperactivity in sensitive individuals. Option C appears to be a typo for carboxy-methyl cellulose, which is a thickener/stabilizer, not a preservative linked to these reactions.

Multiple choice zoology drugs effects of smoking smoking tobacco busy at work - our internal organs

Nicotine acts as a stimulant because it mimics the effect of

  1. Thyroxine

  2. Acetylcholine

  3. Testosterone

  4. Dopamine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nicotine is found in the leaves of tobacco. It acts as both stimulant as it mimics the acetylcholine and also as the depressor. It stimulates passage of nerve impulses causes muscles to relax. 

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

What is the use of colloidal copper ?

  1. In treatment of cancer

  2. In treatment of syphilis

  3. Diagnostic agent for paresis

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Colloidal metal supplements are used to treat deficiencies of metals in the body and boost its immune system. Colloidal copper is actually small flecks of copper mixed with purified water. The water acts as a vehicle for delivering the metal to the digestive system.
Copper acts as an excellent anti-oxidant which helps prevents and treats diseases like.- diabetes and some cases claims, also prevents cancer., Proper Growth and Health, Copper is vital for good health and normal growth. It helps in the protection of skeletal, nervous and cardiovascular systems.

Multiple choice bio-chemistry organization of life concept of metabolism metabolism in animals metabolism

Which of the following represents the metabolic anti-transparent?

  1. PMA
  2. $CO _2$

  3. Aspirin

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

PMA (phorbol myristate acetate) acts as a metabolic activator or tumor promoter, stimulating various cellular processes. It is often described as 'anti-transparent' in the sense of being a metabolic stimulant. CO2 and aspirin have different primary roles in metabolism.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Antihistamine drugs are effective against

  1. Bacterial infection

  2. Viral infection

  3. Paraplegia

  4. Allergy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Antihistamines are drugs that inhibit the action of histamine in the body by blocking the receptors of histamine. When the histamine recepotrs are stimulated by histamine, it may produce allergic reactions, such as itching, hay fever and rash or hives. Antihistamines treat the symptoms of such allergic reactions.
Thus, the correct answer is option (D), 'Allergy'.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Use of antihistamines and steroid give a quick relief from

  1. Nausea

  2. Headache

  3. Allergy

  4. Cough
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Antihistamines are drugs which are used to treat allergic rhinitis and other allergies. Antihistamines can give relief when a person has nasal congestion, sneezing, or hives because of pollen, dust mites, or animal allergy. Histamine is mostly responsible for allergic reactions. Antihistamines block the action of histamines.
  • A steroid is a biologically active organic compound. Steroids such as corticosteroids are used in the treatment of allergic reactions by reducing inflammation associated with allergies. They prevent and treat nasal stuffiness, sneezing, and itchy, runny nose due to seasonal or year-round allergies. They can also decrease inflammation and swelling from other types of allergic reactions
  • So, the correct answer is 'Allergy'.
Multiple choice biology classification and variation dna - history and structure biotechnology commercial applications of biotechnology

The name of drug used in cancer treatment produced by biotechnology is

  1. Interferon

  2. HGH

  3. TSH

  4. Insulin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Interferons are produced by the body cells as a defensive response to viruses. These belong to the group known as cytokines. Type II interferon is secreted only by natural killer cells and T lymphocytes, its main purpose is to signal the immune system to respond to infectious agents or cancerous growth. So, the correct answer is option A.

Multiple choice cancer - causes, signs and diagnosis human health and diseases zoology

Paclitaxel is a drug that stabilizes microtubules, preventing their breakdown.
Why would this drug be useful for cancer therapy?

  1. The cell membrane is made largely of microtubules and cannot divide when they are stabilized.

  2. Breakdown of microtubules stimulates the start of cell division.

  3. Presence of microtubules increases density-dependent inhibition of cancer cells.

  4. Movement and breakdown of the cytoskeleton are essential to completion of mitosis.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Paclitaxel is a drug used in the treatment of cancer. It is a cytoskeletal drug that prevents the disssembly of microtubles that are formed during cell division,that is it stabilizes the microtubules, therefore the chromosome separation does not occur during Anaphase. If this phase is prolonged then the cell either undergoes apoptosis or it reverts back to G$ _0$ phase.

So, the correct answer is 'Movement and breakdown of the cytoskeleton are essential to completion of mitosis'




Multiple choice cancer - causes, signs and diagnosis human health and diseases zoology

Which of the following is not used to treat cancer?

  1. $^{131}$I
  2. $^{60}$Co

  3. Taxol

  4. Streptokinase
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Streptokinase (SK) is a thrombolytic medication and enzyme. 
  • As a medication, it is used to break down clots in some cases of myocardial infarction (heart attack), pulmonary embolism, and arterial thromboembolism.
  • Hence Streptokinase is not used to treat cancer.
  • So, the correct answer is 'Streptokinase'.