Undergraduate MCQ & Objective Questions
The undergraduate level is a crucial phase in a student's academic journey, especially for those preparing for school and competitive exams. Mastering this stage can significantly enhance your understanding and retention of key concepts. Practicing MCQs and objective questions is essential, as it not only helps in reinforcing knowledge but also boosts your confidence in tackling important questions during exams.
What You Will Practise Here
Fundamental concepts in Mathematics and Science
Key definitions and theories across various subjects
Important formulas and their applications
Diagrams and graphical representations
Critical thinking and problem-solving techniques
Subject-specific MCQs designed for competitive exams
Revision of essential topics for better retention
Exam Relevance
Undergraduate topics are integral to various examinations such as CBSE, State Boards, NEET, and JEE. These subjects often feature a mix of conceptual and application-based questions. Common patterns include multiple-choice questions that assess both theoretical knowledge and practical application, making it vital for students to be well-versed in undergraduate concepts.
Common Mistakes Students Make
Overlooking the importance of understanding concepts rather than rote memorization
Misinterpreting questions due to lack of careful reading
Neglecting to practice numerical problems that require application of formulas
Failing to review mistakes made in previous practice tests
FAQs
Question: What are some effective strategies for solving undergraduate MCQ questions?Answer: Focus on understanding the concepts, practice regularly, and review your answers to learn from mistakes.
Question: How can I improve my speed in answering objective questions?Answer: Time yourself while practicing and gradually increase the number of questions you attempt in a set time.
Start your journey towards mastering undergraduate subjects today! Solve practice MCQs and test your understanding to ensure you are well-prepared for your exams. Your success is just a question away!
Q. What is the main driving force for the movement of water in plants? (2023)
A.
Root pressure
B.
Capillary action
C.
Transpiration pull
D.
Gravity
Show solution
Solution
Transpiration pull, created by the evaporation of water from the leaves, is the main driving force for water movement in plants.
Correct Answer:
C
— Transpiration pull
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Q. What is the main driving force for the movement of water in the xylem?
A.
Root pressure
B.
Capillary action
C.
Transpiration pull
D.
Gravity
Show solution
Solution
Transpiration pull, created by the evaporation of water from the leaf surface, is the main driving force for water movement in the xylem.
Correct Answer:
C
— Transpiration pull
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Q. What is the main driving force for the movement of water through the xylem?
A.
Root pressure
B.
Capillary action
C.
Transpiration pull
D.
Gravity
Show solution
Solution
Transpiration pull, created by the evaporation of water from the leaves, is the main driving force for water movement in xylem.
Correct Answer:
C
— Transpiration pull
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Q. What is the main effect of deforestation on biodiversity? (2019)
A.
Increase in species diversity
B.
Habitat loss
C.
Improvement in ecosystem services
D.
Reduction in carbon footprint
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Solution
Deforestation leads to habitat loss, which is a major threat to biodiversity.
Correct Answer:
B
— Habitat loss
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Q. What is the main effect of deforestation on the environment? (2019)
A.
Increased biodiversity
B.
Soil conservation
C.
Loss of habitat
D.
Improved air quality
Show solution
Solution
Deforestation leads to the loss of habitat for many species, resulting in decreased biodiversity.
Correct Answer:
C
— Loss of habitat
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Q. What is the main energy source for muscle contraction? (2023)
A.
Glucose
B.
Fatty acids
C.
ATP
D.
Creatine phosphate
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Solution
Adenosine triphosphate (ATP) is the main energy source for muscle contraction.
Correct Answer:
C
— ATP
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Q. What is the main environmental concern associated with plastic waste? (2022)
A.
Air pollution
B.
Soil degradation
C.
Water contamination
D.
All of the above
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Solution
Plastic waste poses multiple environmental concerns, including air pollution from incineration, soil degradation, and water contamination.
Correct Answer:
D
— All of the above
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Q. What is the main enzyme involved in protein digestion in the stomach? (2021)
A.
Amylase
B.
Pepsin
C.
Trypsin
D.
Lipase
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Solution
Pepsin is the main enzyme that digests proteins in the acidic environment of the stomach.
Correct Answer:
B
— Pepsin
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Q. What is the main excretory product of purine metabolism? (2022)
A.
Urea
B.
Creatinine
C.
Uric acid
D.
Ammonia
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Solution
Uric acid is the main excretory product of purine metabolism in humans.
Correct Answer:
C
— Uric acid
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Q. What is the main factor that determines the type of ecosystem in a particular area? (2019)
A.
Soil type
B.
Climate
C.
Topography
D.
Human activity
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Solution
Climate is the main factor that determines the type of ecosystem, influencing temperature and precipitation patterns.
Correct Answer:
B
— Climate
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Q. What is the main force that holds the nucleus together? (2020)
A.
Electromagnetic force
B.
Gravitational force
C.
Weak nuclear force
D.
Strong nuclear force
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Solution
The strong nuclear force is the primary force that holds the nucleons (protons and neutrons) together in the nucleus.
Correct Answer:
D
— Strong nuclear force
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Q. What is the main function of a transformer? (2014)
A.
Increase voltage
B.
Decrease voltage
C.
Change AC to DC
D.
Store energy
Show solution
Solution
The main function of a transformer is to increase or decrease the voltage in an AC circuit.
Correct Answer:
A
— Increase voltage
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Q. What is the main function of a transistor? (2022)
A.
Rectification
B.
Amplification
C.
Capacitance
D.
Inductance
Show solution
Solution
The main function of a transistor is to amplify electrical signals.
Correct Answer:
B
— Amplification
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Q. What is the main function of alveoli in the lungs? (2019)
A.
Gas exchange
B.
Air filtration
C.
Sound production
D.
Temperature regulation
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Solution
Alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide occurs, making them essential for respiration.
Correct Answer:
A
— Gas exchange
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Q. What is the main function of antibodies in the immune system? (2021)
A.
To destroy pathogens
B.
To produce hormones
C.
To transport oxygen
D.
To digest food
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Solution
Antibodies are proteins produced by the immune system to identify and neutralize pathogens such as bacteria and viruses.
Correct Answer:
A
— To destroy pathogens
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Q. What is the main function of cartilage in the body? (2019)
A.
Support and flexibility
B.
Storage of fat
C.
Transport of nutrients
D.
Production of blood cells
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Solution
Cartilage provides support and flexibility to various structures in the body, such as joints and the rib cage.
Correct Answer:
A
— Support and flexibility
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Q. What is the main function of decomposers in an ecosystem? (2020)
A.
Produce energy
B.
Consume primary producers
C.
Recycle nutrients
D.
Provide shelter
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Solution
Decomposers recycle nutrients by breaking down dead organic matter, returning essential nutrients to the soil.
Correct Answer:
C
— Recycle nutrients
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Q. What is the main function of ligaments in the human body? (2019)
A.
Connect muscle to bone
B.
Connect bone to bone
C.
Support organs
D.
Facilitate movement
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Solution
Ligaments connect bone to bone, providing stability to joints.
Correct Answer:
B
— Connect bone to bone
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Q. What is the main function of lipids in the body?
A.
Energy storage
B.
Genetic information
C.
Structural support
D.
Transport
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Solution
Lipids serve as a major form of energy storage in the body.
Correct Answer:
A
— Energy storage
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Q. What is the main function of phloem in flowering plants? (2023)
A.
Transport of water
B.
Transport of nutrients
C.
Transport of food
D.
Support
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Solution
Phloem is responsible for the transport of food (sugars) produced during photosynthesis from leaves to other parts of the plant.
Correct Answer:
C
— Transport of food
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Q. What is the main function of plasma in the blood? (2023)
A.
Transporting oxygen
B.
Transporting nutrients and waste
C.
Fighting infections
D.
Regulating body temperature
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Solution
Plasma is the liquid component of blood that carries nutrients, hormones, and waste products throughout the body.
Correct Answer:
B
— Transporting nutrients and waste
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Q. What is the main function of producers in an ecosystem? (2019)
A.
To consume other organisms
B.
To decompose organic matter
C.
To produce energy through photosynthesis
D.
To compete for resources
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Solution
Producers, such as plants, produce energy through photosynthesis, forming the base of the food chain.
Correct Answer:
C
— To produce energy through photosynthesis
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Q. What is the main function of sepals? (2021)
A.
Attract pollinators
B.
Protect the flower bud
C.
Produce pollen
D.
Support the ovary
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Solution
Sepals protect the flower bud before it opens.
Correct Answer:
B
— Protect the flower bud
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Q. What is the main function of skeletal muscle tissue? (2019)
A.
Involuntary movement
B.
Voluntary movement
C.
Pumping blood
D.
Regulating body temperature
Show solution
Solution
Skeletal muscle tissue is responsible for voluntary movements of the body, allowing for locomotion and manipulation.
Correct Answer:
B
— Voluntary movement
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Q. What is the main function of stratified squamous epithelium? (2019)
A.
Secretion
B.
Protection
C.
Absorption
D.
Filtration
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Solution
Stratified squamous epithelium primarily functions in protection against abrasion and pathogens.
Correct Answer:
B
— Protection
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Q. What is the main function of surfactant in the lungs? (2020)
A.
Increase oxygen absorption
B.
Reduce surface tension
C.
Facilitate gas exchange
D.
Enhance lung elasticity
Show solution
Solution
Surfactant reduces surface tension in the alveoli, preventing their collapse and making it easier for the lungs to expand during inhalation.
Correct Answer:
B
— Reduce surface tension
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Q. What is the main function of the anther? (2022)
A.
To produce ovules
B.
To produce pollen
C.
To attract pollinators
D.
To support the flower
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Solution
The anther is the part of the stamen that produces and contains pollen grains.
Correct Answer:
B
— To produce pollen
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Q. What is the main function of the cell wall in plant cells? (2021)
A.
Energy storage
B.
Protection and support
C.
Photosynthesis
D.
Cell division
Show solution
Solution
The cell wall provides protection and structural support to plant cells, maintaining their shape.
Correct Answer:
B
— Protection and support
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Q. What is the main function of the gastric acid in the stomach? (2019)
A.
Neutralizes food
B.
Activates digestive enzymes
C.
Absorbs nutrients
D.
Emulsifies fats
Show solution
Solution
Gastric acid activates digestive enzymes, particularly pepsinogen to pepsin, and helps in protein digestion.
Correct Answer:
B
— Activates digestive enzymes
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Q. What is the main function of the gastric juice? (2021)
A.
Neutralizing acids
B.
Breaking down carbohydrates
C.
Digestion of proteins
D.
Absorbing nutrients
Show solution
Solution
Gastric juice contains hydrochloric acid and pepsin, which are essential for the digestion of proteins.
Correct Answer:
C
— Digestion of proteins
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