Chemistry · Biology

Pharmacology and Therapeutics

1,699 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

What is the role of Streptokinase

  1. Immunosuppressive agent

  2. Remove oily stains

  3. Clot buster

  4. Painkiller
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Streptokinase, produced by the bacterium Streptococcus, is used as a clot buster to remove blood clots from the blood vessels of patients who have suffered myocardial infarction.

Multiple choice zoology excretion and osmoregulation regulation of urine formation properties of urine and regulation of urine formation coordination in human beings- chemical control

Choose the odd one out from given option.

  1. Renin

  2. ANF

  3. ADH

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

A. Renin is an aspartic protease protein as well as an enzyme which is secreted by the kidneys in the Renin-angiotensin-aldosterone system that regulates the arterial blood pressure.

B. ANF is called the Atrial natriuretic factor, it is a polypeptide hormone (28 amino-acid) is secreted by the atria of the heart in response and acts on the kidney to increase sodium excretion and to inhibit renin secretion.
C. ADH is called Anti-diuretic hormone or vasopressin which produced by the hypothalamus and it regulates and balances the amount of water in the blood.
D. Aldosterone is a mineralocorticoid steroid hormone produced by the adrenal gland which helps in the conservation of sodium in the kidney, salivary glands, sweat glands and colon.
Except for Renin, all others are hormones.
  • So, the correct answer is 'Renin'.

Multiple choice zoology excretion and osmoregulation regulation of urine formation properties of urine and regulation of urine formation coordination in human beings- chemical control

The stimulants present in tea, cocoa and cola drink

  1. Cocaine

  2. Tannin

  3. Opium

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

Caffeine is a central nervous system stimulant of the methylxanthine class of psychoactive drugs. It is the most mildest stimulant and is most widely consumed psychoactive drug. It is present in coffee, tea and cola drinks.
Therefore, the correct answer is option D.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Chemical derived from urea-melonic acid and used in inducing sleep is

  1. Diazepam

  2. Benzodiazepine

  3. Barbiturate

  4. Amphetamine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Diazepam is sold under the trade number of Valium. It belongs to family of benzodiazepines which are a type of tranquilizers. It is derived from urea and melonic acid. It is taken by mouth or injected intravenously. It produces a calming effect and used to treat anxiety, seizures and muscular spasms. It has sedative effects and thus, used before medical procedures. It is also used to treat insomnia i.e. lack of sleep because it induces sleep. 
So, the correct answer is 'Diazepam'.
Multiple choice zoology control and coordination in living organisms hypothalamus nervous and endocrine system in humans coordination in human beings- chemical control

Prostaglandins affect 

  1. Blood pressure

  2. Defecation

  3. Osmoregulation

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

Most prostaglandins act locally; they are powerful as locally acting vasodilators. Vasodilation occurs when the muscles in the walls of blood vessels relax, so that the vessels dilate. This creates less resistance to blood flow and allows blood flow to increase and hence blood pressure to decrease. 

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Which is synthetic stimulant?

  1. Cocaine

  2. Amphitamine

  3. LSD

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

Synthetic drugs are those which are not natural and are created by processing chemical ingredients. Amphetamines is one such drug. Amphetamines affect the activity of the nervous system. They speed up the messages between the body and the brain.
Therefore, the correct answer is option B.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Which one of the following is a matching pair of a drug and its category?

  1. Amphetamines and stimulant

  2. Lysergic acid dimethyl amide and narcotic

  3. Heroin and psychotropic

  4. Benzodiazepam and pain killer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amphetamines are stimulants that increase the activity of the central nervous system. These are basically a kind of drugs that increase the activity of chemicals in the brain. So they are used to have fun, forget problems, celebrate, relieve boredom and to stay alert.

So, the correct answer is 'Amphetamines and stimulant'.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Drugs which do not develop physiological dependence are

  1. Opiates

  2. Sedatives

  3. Stimulants

  4. Tranquilisers
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Stimulants are the drugs that stimulate nervous system and make a person more alert and active. They cause excitement and have pleasurable effects. They are swallowed, snorted or injected. These drugs include natural stimulants such as caffeine and cocaine and synthetic stimulants such as amphetamines. They do not cause true physiological dependence. The addiction is psychological and withdrawal causes anxiety, depression and restlessness.
So, the correct answer is 'Stimulants'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Antisleep pills are made of

  1. Barbiturates

  2. Benzoidiazepines

  3. Amphetamines

  4. Both A and B
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Amphetamine is a synthetic stimulant commonly known as pep pills or anti-sleep drugs. It is structurally similar to adrenaline. Excess use of amphetamine can cause insomnia (lack of sleep). It is stimulant of CNS (central nervous system). It stimulates respiratory centre, suppress hunger and cause addiction. In ancient times, amphetamines drugs were used by soldiers to keep them awake.
So, the correct answer is 'Amphetamines'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Which of the following is a synthetic stimulant?

  1. Cocaine

  2. Amphetamine

  3. LSD

  4. Mescaline
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Amphetamine is a synthetic stimulant commonly known as pep pills or anti-sleep drugs. It is structurally similar to adrenaline. It is used in dope test for athletes. It is stimulant of CNS (central nervous system). It stimulates respiratory centre, suppress hunger and cause addiction. High doses of amphetamine cause sleeplessness and vomiting. Examples include Benzedrine, Methedrine and Dexedrine.
So, the correct answer is 'Amphetamine'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

A useful drug that damages gastric mucosa, if taken along with alcohol is

  1. Valium

  2. Anthistamine

  3. Asprin

  4. Morphine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gastritis occurs when there is an imbalance between the acid, and the mucous produced, and the acid manages to erode and damage the stomach lining. Aspirin, which inhibits cyclooxygenase, is rapidly deacetylated to salicylate. Salicylate is toxic to cells and affects mucosal barrier function, reduces cytosolic adenosine triphosphate, stimulates sodium transport, and increases proton dissipation from surface epithelial cells. 

So the correct answer is 'Asprin'.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Psychedelic drug is a

  1. Cocaine

  2. Smack

  3. Speed ball

  4. Psilocybe
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Psilocybe is a genus of gilled mushrooms from which psilocybin drug is obtained. Psilocybin is a psychedelic drug which affects behaviour, mood, thoughts and perceptions. It is a natural hallucinogen. Psilocybe mushrooms have hallucinogenic effects when eaten. It can also cause psychosis in which contact is lost with external reality. Other effects include anxiety and panic attacks. Synesthesia, a condition of mixed perception in which a person hears colours and sees sound, may also occur.
So, the correct answer is 'Psilocybe'.