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 function of the cell membrane? (2023)
A.
Energy production
B.
Transport of substances
C.
Protein synthesis
D.
DNA storage
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Solution
The cell membrane regulates the transport of substances in and out of the cell.
Correct Answer:
B
— Transport of substances
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Q. What is the function of the cilia in the respiratory tract? (2021)
A.
Gas exchange
B.
Mucus secretion
C.
Movement of air
D.
Clearing debris and pathogens
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Solution
Cilia in the respiratory tract help to clear debris and pathogens by moving mucus upwards towards the throat.
Correct Answer:
D
— Clearing debris and pathogens
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Q. What is the function of the corpus luteum? (2021)
A.
Produces estrogen
B.
Produces progesterone
C.
Produces testosterone
D.
Produces LH
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Solution
The corpus luteum primarily produces progesterone, which is essential for maintaining the uterine lining during early pregnancy.
Correct Answer:
B
— Produces progesterone
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Q. What is the function of the cytoskeleton? (2019)
A.
Energy production
B.
Cell shape and movement
C.
Protein synthesis
D.
DNA storage
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Solution
The cytoskeleton provides structural support, helps maintain cell shape, and is involved in cell movement.
Correct Answer:
B
— Cell shape and movement
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Q. What is the function of the epiglottis during breathing? (2022)
A.
To filter air
B.
To prevent food from entering the trachea
C.
To produce sound
D.
To regulate airflow
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Solution
The epiglottis is a flap that covers the trachea during swallowing, preventing food and liquid from entering the airway.
Correct Answer:
B
— To prevent food from entering the trachea
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Q. What is the function of the Golgi apparatus? (2023)
A.
Protein synthesis
B.
Modification and packaging of proteins
C.
Energy production
D.
Cell division
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Solution
The Golgi apparatus modifies, sorts, and packages proteins for secretion or use within the cell.
Correct Answer:
B
— Modification and packaging of proteins
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Q. What is the function of the hormone oxytocin? (2019)
A.
Stimulate uterine contractions
B.
Regulate metabolism
C.
Control blood sugar
D.
Increase heart rate
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Solution
Oxytocin is involved in childbirth by stimulating uterine contractions and is also associated with social bonding.
Correct Answer:
A
— Stimulate uterine contractions
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Q. What is the function of the nucleus in a cell? (2023)
A.
Energy production
B.
Storage of nutrients
C.
Control center of the cell
D.
Waste removal
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Solution
The nucleus serves as the control center of the cell, housing the cell's genetic material.
Correct Answer:
C
— Control center of the cell
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Q. What is the function of the pancreas in digestion? (2019)
A.
Secretes bile
B.
Produces digestive enzymes
C.
Absorbs nutrients
D.
Stores food
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Solution
The pancreas produces digestive enzymes that help in the digestion of carbohydrates, proteins, and fats.
Correct Answer:
B
— Produces digestive enzymes
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Q. What is the function of the petals in a flower? (2023)
A.
Attract pollinators
B.
Produce seeds
C.
Support the flower
D.
Store nutrients
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Solution
The petals of a flower are often brightly colored and serve to attract pollinators such as bees and butterflies.
Correct Answer:
A
— Attract pollinators
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Q. What is the function of the rough endoplasmic reticulum? (2020)
A.
Lipid synthesis
B.
Protein synthesis
C.
Energy production
D.
Detoxification
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Solution
The rough endoplasmic reticulum is studded with ribosomes and is primarily involved in the synthesis of proteins.
Correct Answer:
B
— Protein synthesis
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Q. What is the function of the selectable marker gene in a recombinant DNA experiment? (2021)
A.
To enhance gene expression
B.
To allow for the identification of successfully transformed cells
C.
To provide energy to the cells
D.
To degrade unwanted DNA
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Solution
Selectable marker genes are used to identify cells that have successfully taken up the recombinant DNA, allowing researchers to select for those cells.
Correct Answer:
B
— To allow for the identification of successfully transformed cells
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Q. What is the function of the seminal vesicles? (2021)
A.
To produce sperm
B.
To provide nutrients to sperm
C.
To store sperm
D.
To produce testosterone
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Solution
The seminal vesicles produce a fluid that provides nutrients to sperm and helps form semen.
Correct Answer:
B
— To provide nutrients to sperm
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Q. What is the function of the sepals in a flower? (2020)
A.
Attract pollinators
B.
Protect the flower bud
C.
Produce pollen
D.
Support the flower
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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 function of the stigma in a flower? (2022)
A.
To attract pollinators
B.
To produce pollen
C.
To receive pollen
D.
To protect ovules
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Solution
The stigma is the part of the flower that receives pollen during pollination, allowing fertilization to occur.
Correct Answer:
C
— To receive pollen
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Q. What is the function of the style in a flower? (2023)
A.
To support the anther
B.
To connect stigma and ovary
C.
To attract pollinators
D.
To produce nectar
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Solution
The style is the slender stalk that connects the stigma to the ovary, allowing pollen to travel to the ovules.
Correct Answer:
B
— To connect stigma and ovary
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Q. What is the function of the synaptic cleft? (2022)
A.
To transmit electrical impulses
B.
To separate two neurons
C.
To store neurotransmitters
D.
To protect the neuron
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Solution
The synaptic cleft is the small gap between two neurons where neurotransmitters are released to facilitate communication.
Correct Answer:
B
— To separate two neurons
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Q. What is the function of the Taq polymerase in PCR? (2023)
A.
To cut DNA
B.
To synthesize DNA
C.
To ligate DNA fragments
D.
To denature DNA
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Solution
Taq polymerase is a heat-stable enzyme used in PCR to synthesize new DNA strands by extending primers during the amplification process.
Correct Answer:
B
— To synthesize DNA
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Q. What is the function of the villi in the small intestine? (2019)
A.
Increase surface area for absorption
B.
Secrete digestive enzymes
C.
Produce bile
D.
Store nutrients
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Solution
Villi increase the surface area of the small intestine, enhancing nutrient absorption.
Correct Answer:
A
— Increase surface area for absorption
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Q. What is the function of the xylem in flowering plants? (2023)
A.
Transport of nutrients
B.
Transport of water
C.
Photosynthesis
D.
Storage of food
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Solution
Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer:
B
— Transport of water
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Q. What is the function of villi in the small intestine? (2019)
A.
Secretion of enzymes
B.
Absorption of nutrients
C.
Production of bile
D.
Storage of food
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Solution
Villi increase the surface area of the small intestine, enhancing the absorption of nutrients.
Correct Answer:
B
— Absorption of nutrients
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Q. What is the functional group of alcohols? (2020)
A.
-OH
B.
-COOH
C.
-CHO
D.
-NH2
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Solution
The functional group of alcohols is the hydroxyl group (-OH).
Correct Answer:
A
— -OH
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Q. What is the functional group of aldehydes?
A.
-OH
B.
-CHO
C.
-C=O
D.
-COOH
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Solution
The functional group of aldehydes is -CHO.
Correct Answer:
B
— -CHO
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Q. What is the functional group of phenols? (2019) 2019
A.
-OH
B.
-COOH
C.
-CHO
D.
-NH2
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Solution
Phenols contain a hydroxyl group (-OH) directly attached to an aromatic ring.
Correct Answer:
A
— -OH
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Q. What is the functional group of phenols? (2021)
A.
-OH
B.
-COOH
C.
-CHO
D.
-NH2
Show solution
Solution
Phenols contain a hydroxyl group (-OH) directly attached to an aromatic hydrocarbon group.
Correct Answer:
A
— -OH
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Q. What is the functional group present in alcohols? (2023) 2023
A.
Aldehyde
B.
Ketone
C.
Hydroxyl
D.
Carboxylic acid
Show solution
Solution
Alcohols contain a hydroxyl (-OH) functional group.
Correct Answer:
C
— Hydroxyl
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Q. What is the functional group present in phenols? (2021)
A.
-OH
B.
-COOH
C.
-CHO
D.
-NH2
Show solution
Solution
Phenols contain a hydroxyl group (-OH) directly attached to an aromatic hydrocarbon group.
Correct Answer:
A
— -OH
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Q. What is the functional group present in phenols? (2021) 2021
A.
-OH
B.
-COOH
C.
-CHO
D.
-NH2
Show solution
Solution
Phenols contain a hydroxyl group (-OH) directly attached to an aromatic hydrocarbon group.
Correct Answer:
A
— -OH
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Q. What is the functional unit of the lung where gas exchange occurs? (2019)
A.
Bronchi
B.
Alveoli
C.
Trachea
D.
Larynx
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Solution
Alveoli are the tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
Correct Answer:
B
— Alveoli
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Q. What is the general electronic configuration of alkali metals? (2022)
A.
ns^1
B.
ns^2
C.
ns^2np^1
D.
ns^2np^2
Show solution
Solution
The general electronic configuration of alkali metals is ns^1, where n is the principal quantum number.
Correct Answer:
A
— ns^1
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