Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. What is the function of the cytoskeleton? (2019)
A.
Energy production
B.
Cell shape and movement
C.
Protein synthesis
D.
DNA storage
Show solution
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 immune system?
A.
To transport oxygen
B.
To protect against pathogens
C.
To regulate body temperature
D.
To digest food
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Solution
The immune system protects the body against infections and diseases by identifying and destroying pathogens.
Correct Answer:
B
— To protect against pathogens
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Q. What is the function of the kidneys? (2020)
A.
Produce hormones
B.
Filter blood
C.
Digest food
D.
Regulate temperature
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Solution
The kidneys filter blood to remove waste and excess substances.
Correct Answer:
B
— Filter blood
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Q. What is the function of the lysosome?
A.
Energy production
B.
Digestion of waste materials
C.
Protein synthesis
D.
Photosynthesis
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Solution
Lysosomes contain enzymes that break down waste materials and cellular debris.
Correct Answer:
B
— Digestion of waste materials
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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 preposition in the sentence: 'She walked through the park.'? (2020)
A.
to show time
B.
to show place
C.
to show direction
D.
to show reason
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Solution
The preposition 'through' shows the place where the action occurs.
Correct Answer:
B
— to show place
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Q. What is the function of the respiratory system?
A.
To circulate blood
B.
To break down food
C.
To exchange gases
D.
To produce hormones
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Solution
The respiratory system is responsible for the exchange of gases, primarily oxygen and carbon dioxide, in the body.
Correct Answer:
C
— To exchange gases
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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 skeletal system? (2022)
A.
To produce energy
B.
To protect internal organs
C.
To transport oxygen
D.
To regulate hormones
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Solution
The skeletal system provides structure and protection for internal organs, making option 2 the correct answer.
Correct Answer:
B
— To protect internal organs
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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 ketones?
A.
-CHO
B.
-CO-
C.
-OH
D.
-NH2
Show solution
Solution
The functional group of ketones is -CO-, which is a carbonyl group between two carbon atoms.
Correct Answer:
B
— -CO-
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Q. What is the functional group of phenols? (2019) 2019
A.
-OH
B.
-COOH
C.
-CHO
D.
-NH2
Show solution
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?
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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