Medical Science MCQ & Objective Questions
Medical Science is a crucial subject for students aspiring to excel in their school and competitive exams. Understanding key concepts and practicing MCQs can significantly enhance your exam preparation. By solving objective questions, you can identify important topics and improve your chances of scoring better in exams.
What You Will Practise Here
Fundamentals of Human Anatomy and Physiology
Key Concepts in Microbiology and Immunology
Essential Definitions and Terminology in Medical Science
Important Diagrams related to Body Systems
Pathology and Disease Mechanisms
Pharmacology Basics and Drug Classifications
Common Medical Procedures and Their Implications
Exam Relevance
Medical Science is a significant part of the curriculum for CBSE, State Boards, NEET, and JEE exams. Questions often focus on understanding human body systems, disease processes, and medical terminology. Common patterns include multiple-choice questions that test both theoretical knowledge and practical application, making it essential to be well-prepared with important Medical Science MCQ questions.
Common Mistakes Students Make
Overlooking the importance of diagrams in understanding anatomy.
Confusing similar terms in pharmacology and their applications.
Neglecting to connect theoretical concepts with practical scenarios.
Misinterpreting questions due to lack of careful reading.
FAQs
Question: What are the best ways to prepare for Medical Science MCQs?Answer: Regular practice of objective questions, reviewing key concepts, and understanding diagrams are effective strategies.
Question: How can I improve my score in Medical Science exams?Answer: Focus on solving practice questions and revising important topics consistently.
Now is the time to enhance your understanding of Medical Science! Dive into our practice MCQs and test your knowledge to ensure you are well-prepared for your exams. Remember, consistent practice leads to success!
Q. What is the main component of the cell wall in green algae?
A.
Cellulose
B.
Chitin
C.
Silica
D.
Pectin
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Solution
Cellulose is the main component of the cell wall in green algae.
Correct Answer:
A
— Cellulose
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Q. What is the main dietary source of omega-3 fatty acids?
A.
Red meat
B.
Fish
C.
Dairy products
D.
Vegetable oils
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Solution
Fish, particularly fatty fish like salmon, are the primary dietary source of omega-3 fatty acids.
Correct Answer:
B
— Fish
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Q. What is the main disadvantage of using chemical sterilants?
A.
They are ineffective
B.
They can be toxic
C.
They are time-consuming
D.
They are expensive
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Solution
The main disadvantage of using chemical sterilants is that they can be toxic to humans and require careful handling.
Correct Answer:
B
— They can be toxic
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Q. What is the main disadvantage of using paper chromatography?
A.
It is time-consuming
B.
It has low resolution
C.
It requires expensive equipment
D.
It cannot separate small molecules
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Solution
The main disadvantage of paper chromatography is its low resolution compared to other methods.
Correct Answer:
B
— It has low resolution
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Q. What is the main effect of natriuretic peptides on renal function?
A.
Increase sodium reabsorption
B.
Decrease glomerular filtration rate
C.
Promote diuresis
D.
Stimulate renin release
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Solution
Natriuretic peptides promote diuresis by inhibiting sodium reabsorption and increasing urine output, helping to lower blood pressure.
Correct Answer:
C
— Promote diuresis
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Q. What is the main energy currency of the cell?
A.
NADH
B.
FADH2
C.
ATP
D.
GTP
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Solution
ATP (adenosine triphosphate) is the main energy currency of the cell, used for various cellular processes.
Correct Answer:
C
— ATP
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Q. What is the main ethical concern associated with gene editing in humans?
A.
Cost of treatment
B.
Potential for designer babies
C.
Availability of technology
D.
Public acceptance
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Solution
The main ethical concern with gene editing in humans is the potential for creating 'designer babies' with selected traits.
Correct Answer:
B
— Potential for designer babies
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Q. What is the main function of a trickling filter in wastewater treatment?
A.
To aerate the water
B.
To remove solids
C.
To promote microbial growth
D.
To disinfect the effluent
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Solution
The main function of a trickling filter is to promote microbial growth on the filter media, which helps in the breakdown of organic matter.
Correct Answer:
C
— To promote microbial growth
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Q. What is the main function of flow cytometry?
A.
To analyze the physical and chemical characteristics of cells
B.
To culture bacteria
C.
To perform genetic sequencing
D.
To visualize cellular structures
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Solution
Flow cytometry is primarily used to analyze the physical and chemical characteristics of cells in a fluid as they pass through a laser.
Correct Answer:
A
— To analyze the physical and chemical characteristics of cells
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Q. What is the main function of lipids in biological membranes?
A.
Energy storage
B.
Structural support
C.
Catalysis of reactions
D.
Information storage
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Solution
Lipids, particularly phospholipids, provide structural support and form the bilayer of biological membranes.
Correct Answer:
B
— Structural support
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Q. What is the main function of proteins in the body?
A.
To provide energy
B.
To build and repair tissues
C.
To store nutrients
D.
To regulate body temperature
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Solution
Proteins are crucial for building and repairing tissues, as well as serving as enzymes and hormones.
Correct Answer:
B
— To build and repair tissues
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Q. What is the main function of red blood cells in the cardiovascular system?
A.
To fight infections
B.
To transport oxygen
C.
To regulate blood pressure
D.
To clot blood
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Solution
The main function of red blood cells is to transport oxygen from the lungs to the body's tissues.
Correct Answer:
B
— To transport oxygen
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Q. What is the main function of the amniotic fluid?
A.
Nutrient supply
B.
Shock absorption
C.
Gas exchange
D.
Waste removal
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Solution
Amniotic fluid provides cushioning and shock absorption for the developing fetus.
Correct Answer:
B
— Shock absorption
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Q. What is the main function of the bacterial capsule?
A.
Energy storage
B.
Protection against phagocytosis
C.
DNA replication
D.
Protein synthesis
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Solution
The bacterial capsule serves as a protective layer that helps bacteria evade the host's immune system by preventing phagocytosis.
Correct Answer:
B
— Protection against phagocytosis
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Q. What is the main function of the cardiovascular system?
A.
To digest food
B.
To transport blood and nutrients
C.
To regulate body temperature
D.
To produce hormones
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Solution
The main function of the cardiovascular system is to transport blood, which carries nutrients, oxygen, and waste products throughout the body.
Correct Answer:
B
— To transport blood and nutrients
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Q. What is the main function of the endocrine system?
A.
To provide structural support
B.
To produce and secrete hormones
C.
To facilitate movement
D.
To protect against pathogens
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Solution
The main function of the endocrine system is to produce and secrete hormones that regulate various bodily functions.
Correct Answer:
B
— To produce and secrete hormones
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Q. What is the main function of the kidneys?
A.
Produce hormones
B.
Filter blood
C.
Digest food
D.
Store bile
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Solution
The primary function of the kidneys is to filter blood, removing waste products and excess substances to form urine.
Correct Answer:
B
— Filter blood
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Q. What is the main function of the large intestine?
A.
Absorption of water and electrolytes
B.
Digestion of proteins
C.
Production of bile
D.
Storage of urine
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Solution
The large intestine's main function is to absorb water and electrolytes from indigestible food matter.
Correct Answer:
A
— Absorption of water and electrolytes
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Q. What is the main function of the occipital lobe?
A.
Processing auditory information
B.
Processing visual information
C.
Regulating emotions
D.
Controlling motor functions
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Solution
The occipital lobe is primarily responsible for processing visual information.
Correct Answer:
B
— Processing visual information
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Q. What is the main function of the spleen?
A.
Production of bile
B.
Filtration of blood
C.
Storage of urine
D.
Secretion of insulin
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Solution
The spleen's main function is to filter blood and remove old or damaged red blood cells.
Correct Answer:
B
— Filtration of blood
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Q. What is the main function of thyroid hormones?
A.
Regulate metabolism
B.
Control blood pressure
C.
Stimulate growth
D.
Maintain calcium levels
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Solution
Thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3), are crucial for regulating the body's metabolism.
Correct Answer:
A
— Regulate metabolism
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Q. What is the main goal of water treatment?
A.
To make water taste better
B.
To ensure water is safe for consumption
C.
To increase water supply
D.
To reduce water temperature
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Solution
The main goal of water treatment is to ensure that water is safe for human consumption.
Correct Answer:
B
— To ensure water is safe for consumption
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Q. What is the main greenhouse gas emitted by human activities?
A.
Ozone
B.
Carbon dioxide
C.
Methane
D.
Nitrous oxide
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Solution
Carbon dioxide is the primary greenhouse gas emitted through human activities, particularly from burning fossil fuels.
Correct Answer:
B
— Carbon dioxide
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Q. What is the main health benefit of consuming berries?
A.
High fiber content
B.
Rich in antioxidants
C.
Low calorie
D.
All of the above
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Solution
Berries are known for being high in fiber, low in calories, and rich in antioxidants, contributing to overall health.
Correct Answer:
D
— All of the above
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Q. What is the main health benefit of consuming yogurt?
A.
High in fiber
B.
Probiotic properties
C.
Rich in iron
D.
Low in calories
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Solution
Yogurt contains probiotics, which are beneficial for gut health.
Correct Answer:
B
— Probiotic properties
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Q. What is the main health concern associated with consuming processed meats?
A.
High cholesterol
B.
Sodium content
C.
Trans fats
D.
Carbohydrates
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Solution
The main health concern associated with consuming processed meats is their high sodium content.
Correct Answer:
B
— Sodium content
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Q. What is the main health risk associated with prolonged exposure to asbestos?
A.
Lung cancer
B.
Skin irritation
C.
Hearing loss
D.
Kidney damage
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Solution
Prolonged exposure to asbestos is primarily associated with an increased risk of lung cancer and mesothelioma.
Correct Answer:
A
— Lung cancer
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Q. What is the main ingredient in beer that contributes to its bitterness?
A.
Hops
B.
Barley
C.
Yeast
D.
Water
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Solution
Hops are the main ingredient in beer that contributes to its bitterness.
Correct Answer:
A
— Hops
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Q. What is the main ingredient in traditional pickles?
A.
Carrots
B.
Cucumbers
C.
Radishes
D.
Peppers
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Solution
Traditional pickles are primarily made from cucumbers.
Correct Answer:
B
— Cucumbers
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Q. What is the main laboratory method used to identify Mycobacterium tuberculosis?
A.
Gram stain
B.
Acid-fast bacilli stain
C.
Culture on blood agar
D.
PCR
Show solution
Solution
The acid-fast bacilli stain is used to identify Mycobacterium tuberculosis due to its unique cell wall properties.
Correct Answer:
B
— Acid-fast bacilli stain
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