Free MCQs with Answers | Military Brat Defence Academy

QID #24588 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Natural selection is correctly matched?

Correct Answer: C. Natural selection — favours heritable traits that improve reproductive success
Natural selection favours heritable traits that improve reproductive success. The other choices describe different concepts.

Question: Which pair involving Natural selection is correctly matched?

A. Neuron — helps lower blood glucose by promoting uptake and storage

B. Insulin — transports most oxygen in human blood

C. Natural selection — favours heritable traits that improve reproductive success

D. Haemoglobin — is the principal signalling cell of the nervous system

Correct Answer: C. Natural selection — favours heritable traits that improve reproductive successExplanation: Natural selection favours heritable traits that improve reproductive success. The other choices describe different concepts.

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QID #24587 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Ecosystem is correctly matched?

Correct Answer: B. Ecosystem — includes organisms and their physical environment interacting together
Ecosystem includes organisms and their physical environment interacting together. The other choices describe different concepts.

Question: Which pair involving Ecosystem is correctly matched?

A. Photosynthesis — produces genetically similar daughter cells for growth and repair

B. Ecosystem — includes organisms and their physical environment interacting together

C. Mitosis — reduces chromosome number during gamete formation

D. Meiosis — converts light energy into chemical energy in green plants

Correct Answer: B. Ecosystem — includes organisms and their physical environment interacting togetherExplanation: Ecosystem includes organisms and their physical environment interacting together. The other choices describe different concepts.

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QID #24586 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Pathogen is correctly matched?

Correct Answer: A. Pathogen — is a biological agent capable of causing disease
Pathogen is a biological agent capable of causing disease. The other choices describe different concepts.

Question: Which pair involving Pathogen is correctly matched?

A. Pathogen — is a biological agent capable of causing disease

B. Ribosome — stores hereditary information in most organisms

C. DNA — is a functional unit of heredity encoded in nucleic acid

D. Gene — is the cellular site of protein synthesis

Correct Answer: A. Pathogen — is a biological agent capable of causing diseaseExplanation: Pathogen is a biological agent capable of causing disease. The other choices describe different concepts.

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QID #24585 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Vaccine is correctly matched?

Correct Answer: D. Vaccine — induces immune memory without causing the target disease
Vaccine induces immune memory without causing the target disease. The other choices describe different concepts.

Question: Which pair involving Vaccine is correctly matched?

A. Natural selection — is the basic structural and functional unit of life

B. Cell — is a major site of aerobic energy production in eukaryotic cells

C. Mitochondrion — favours heritable traits that improve reproductive success

D. Vaccine — induces immune memory without causing the target disease

Correct Answer: D. Vaccine — induces immune memory without causing the target diseaseExplanation: Vaccine induces immune memory without causing the target disease. The other choices describe different concepts.

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QID #24584 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Antibody is correctly matched?

Correct Answer: C. Antibody — is an immunoglobulin that recognizes a specific antigen
Antibody is an immunoglobulin that recognizes a specific antigen. The other choices describe different concepts.

Question: Which pair involving Antibody is correctly matched?

A. Pathogen — includes organisms and their physical environment interacting together

B. Ecosystem — induces immune memory without causing the target disease

C. Antibody — is an immunoglobulin that recognizes a specific antigen

D. Vaccine — is a biological agent capable of causing disease

Correct Answer: C. Antibody — is an immunoglobulin that recognizes a specific antigenExplanation: Antibody is an immunoglobulin that recognizes a specific antigen. The other choices describe different concepts.

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QID #24583 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Vitamin C is correctly matched?

Correct Answer: B. Vitamin C — is required for collagen synthesis and wound healing
Vitamin C is required for collagen synthesis and wound healing. The other choices describe different concepts.

Question: Which pair involving Vitamin C is correctly matched?

A. Antibody — performs metabolism, detoxification and bile production

B. Vitamin C — is required for collagen synthesis and wound healing

C. Liver — supports calcium absorption and bone mineralization

D. Vitamin D — is an immunoglobulin that recognizes a specific antigen

Correct Answer: B. Vitamin C — is required for collagen synthesis and wound healingExplanation: Vitamin C is required for collagen synthesis and wound healing. The other choices describe different concepts.

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QID #24582 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Vitamin D is correctly matched?

Correct Answer: A. Vitamin D — supports calcium absorption and bone mineralization
Vitamin D supports calcium absorption and bone mineralization. The other choices describe different concepts.

Question: Which pair involving Vitamin D is correctly matched?

A. Vitamin D — supports calcium absorption and bone mineralization

B. Neuron — helps lower blood glucose by promoting uptake and storage

C. Insulin — filters blood and regulates water and electrolyte balance

D. Kidney — is the principal signalling cell of the nervous system

Correct Answer: A. Vitamin D — supports calcium absorption and bone mineralizationExplanation: Vitamin D supports calcium absorption and bone mineralization. The other choices describe different concepts.

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QID #24581 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Liver is correctly matched?

Correct Answer: D. Liver — performs metabolism, detoxification and bile production
Liver performs metabolism, detoxification and bile production. The other choices describe different concepts.

Question: Which pair involving Liver is correctly matched?

A. Meiosis — converts light energy into chemical energy in green plants

B. Photosynthesis — transports most oxygen in human blood

C. Haemoglobin — reduces chromosome number during gamete formation

D. Liver — performs metabolism, detoxification and bile production

Correct Answer: D. Liver — performs metabolism, detoxification and bile productionExplanation: Liver performs metabolism, detoxification and bile production. The other choices describe different concepts.

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QID #24580 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Kidney is correctly matched?

Correct Answer: C. Kidney — filters blood and regulates water and electrolyte balance
Kidney filters blood and regulates water and electrolyte balance. The other choices describe different concepts.

Question: Which pair involving Kidney is correctly matched?

A. Gene — produces genetically similar daughter cells for growth and repair

B. Mitosis — stores hereditary information in most organisms

C. Kidney — filters blood and regulates water and electrolyte balance

D. DNA — is a functional unit of heredity encoded in nucleic acid

Correct Answer: C. Kidney — filters blood and regulates water and electrolyte balanceExplanation: Kidney filters blood and regulates water and electrolyte balance. The other choices describe different concepts.

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QID #24579 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Insulin is correctly matched?

Correct Answer: B. Insulin — helps lower blood glucose by promoting uptake and storage
Insulin helps lower blood glucose by promoting uptake and storage. The other choices describe different concepts.

Question: Which pair involving Insulin is correctly matched?

A. Ribosome — is the basic structural and functional unit of life

B. Insulin — helps lower blood glucose by promoting uptake and storage

C. Cell — is a major site of aerobic energy production in eukaryotic cells

D. Mitochondrion — is the cellular site of protein synthesis

Correct Answer: B. Insulin — helps lower blood glucose by promoting uptake and storageExplanation: Insulin helps lower blood glucose by promoting uptake and storage. The other choices describe different concepts.

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QID #24578 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Neuron is correctly matched?

Correct Answer: A. Neuron — is the principal signalling cell of the nervous system
Neuron is the principal signalling cell of the nervous system. The other choices describe different concepts.

Question: Which pair involving Neuron is correctly matched?

A. Neuron — is the principal signalling cell of the nervous system

B. Pathogen — includes organisms and their physical environment interacting together

C. Ecosystem — favours heritable traits that improve reproductive success

D. Natural selection — is a biological agent capable of causing disease

Correct Answer: A. Neuron — is the principal signalling cell of the nervous systemExplanation: Neuron is the principal signalling cell of the nervous system. The other choices describe different concepts.

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QID #24577 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Haemoglobin is correctly matched?

Correct Answer: D. Haemoglobin — transports most oxygen in human blood
Haemoglobin transports most oxygen in human blood. The other choices describe different concepts.

Question: Which pair involving Haemoglobin is correctly matched?

A. Vitamin C — is an immunoglobulin that recognizes a specific antigen

B. Antibody — induces immune memory without causing the target disease

C. Vaccine — is required for collagen synthesis and wound healing

D. Haemoglobin — transports most oxygen in human blood

Correct Answer: D. Haemoglobin — transports most oxygen in human bloodExplanation: Haemoglobin transports most oxygen in human blood. The other choices describe different concepts.

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QID #24576 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Photosynthesis is correctly matched?

Correct Answer: C. Photosynthesis — converts light energy into chemical energy in green plants
Photosynthesis converts light energy into chemical energy in green plants. The other choices describe different concepts.

Question: Which pair involving Photosynthesis is correctly matched?

A. Liver — supports calcium absorption and bone mineralization

B. Vitamin D — filters blood and regulates water and electrolyte balance

C. Photosynthesis — converts light energy into chemical energy in green plants

D. Kidney — performs metabolism, detoxification and bile production

Correct Answer: C. Photosynthesis — converts light energy into chemical energy in green plantsExplanation: Photosynthesis converts light energy into chemical energy in green plants. The other choices describe different concepts.

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QID #24575 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Meiosis is correctly matched?

Correct Answer: B. Meiosis — reduces chromosome number during gamete formation
Meiosis reduces chromosome number during gamete formation. The other choices describe different concepts.

Question: Which pair involving Meiosis is correctly matched?

A. Insulin — transports most oxygen in human blood

B. Meiosis — reduces chromosome number during gamete formation

C. Haemoglobin — is the principal signalling cell of the nervous system

D. Neuron — helps lower blood glucose by promoting uptake and storage

Correct Answer: B. Meiosis — reduces chromosome number during gamete formationExplanation: Meiosis reduces chromosome number during gamete formation. The other choices describe different concepts.

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QID #24574 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Mitosis is correctly matched?

Correct Answer: A. Mitosis — produces genetically similar daughter cells for growth and repair
Mitosis produces genetically similar daughter cells for growth and repair. The other choices describe different concepts.

Question: Which pair involving Mitosis is correctly matched?

A. Mitosis — produces genetically similar daughter cells for growth and repair

B. Gene — reduces chromosome number during gamete formation

C. Meiosis — converts light energy into chemical energy in green plants

D. Photosynthesis — is a functional unit of heredity encoded in nucleic acid

Correct Answer: A. Mitosis — produces genetically similar daughter cells for growth and repairExplanation: Mitosis produces genetically similar daughter cells for growth and repair. The other choices describe different concepts.

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QID #24573 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Gene is correctly matched?

Correct Answer: D. Gene — is a functional unit of heredity encoded in nucleic acid
Gene is a functional unit of heredity encoded in nucleic acid. The other choices describe different concepts.

Question: Which pair involving Gene is correctly matched?

A. Mitochondrion — is the cellular site of protein synthesis

B. Ribosome — stores hereditary information in most organisms

C. DNA — is a major site of aerobic energy production in eukaryotic cells

D. Gene — is a functional unit of heredity encoded in nucleic acid

Correct Answer: D. Gene — is a functional unit of heredity encoded in nucleic acidExplanation: Gene is a functional unit of heredity encoded in nucleic acid. The other choices describe different concepts.

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QID #24572 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving DNA is correctly matched?

Correct Answer: C. DNA — stores hereditary information in most organisms
DNA stores hereditary information in most organisms. The other choices describe different concepts.

Question: Which pair involving DNA is correctly matched?

A. Natural selection — is the basic structural and functional unit of life

B. Cell — includes organisms and their physical environment interacting together

C. DNA — stores hereditary information in most organisms

D. Ecosystem — favours heritable traits that improve reproductive success

Correct Answer: C. DNA — stores hereditary information in most organismsExplanation: DNA stores hereditary information in most organisms. The other choices describe different concepts.

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QID #24571 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Ribosome is correctly matched?

Correct Answer: B. Ribosome — is the cellular site of protein synthesis
Ribosome is the cellular site of protein synthesis. The other choices describe different concepts.

Question: Which pair involving Ribosome is correctly matched?

A. Pathogen — is an immunoglobulin that recognizes a specific antigen

B. Ribosome — is the cellular site of protein synthesis

C. Antibody — induces immune memory without causing the target disease

D. Vaccine — is a biological agent capable of causing disease

Correct Answer: B. Ribosome — is the cellular site of protein synthesisExplanation: Ribosome is the cellular site of protein synthesis. The other choices describe different concepts.

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QID #24570 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Mitochondrion is correctly matched?

Correct Answer: A. Mitochondrion — is a major site of aerobic energy production in eukaryotic cells
Mitochondrion is a major site of aerobic energy production in eukaryotic cells. The other choices describe different concepts.

Question: Which pair involving Mitochondrion is correctly matched?

A. Mitochondrion — is a major site of aerobic energy production in eukaryotic cells

B. Liver — supports calcium absorption and bone mineralization

C. Vitamin D — is required for collagen synthesis and wound healing

D. Vitamin C — performs metabolism, detoxification and bile production

Correct Answer: A. Mitochondrion — is a major site of aerobic energy production in eukaryotic cellsExplanation: Mitochondrion is a major site of aerobic energy production in eukaryotic cells. The other choices describe different concepts.

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QID #24569 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Biology Easy

Which pair involving Cell is correctly matched?

Correct Answer: D. Cell — is the basic structural and functional unit of life
Cell is the basic structural and functional unit of life. The other choices describe different concepts.

Question: Which pair involving Cell is correctly matched?

A. Neuron — helps lower blood glucose by promoting uptake and storage

B. Insulin — filters blood and regulates water and electrolyte balance

C. Kidney — is the principal signalling cell of the nervous system

D. Cell — is the basic structural and functional unit of life

Correct Answer: D. Cell — is the basic structural and functional unit of lifeExplanation: Cell is the basic structural and functional unit of life. The other choices describe different concepts.

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Free MCQs with Answers | Military Brat Defence Academy

Which pair involving Natural selection is correctly matched?

Which pair involving Ecosystem is correctly matched?

Which pair involving Pathogen is correctly matched?

Which pair involving Vaccine is correctly matched?

Which pair involving Antibody is correctly matched?

Which pair involving Vitamin C is correctly matched?

Which pair involving Vitamin D is correctly matched?

Which pair involving Liver is correctly matched?

Which pair involving Kidney is correctly matched?

Which pair involving Insulin is correctly matched?

Which pair involving Neuron is correctly matched?

Which pair involving Haemoglobin is correctly matched?

Which pair involving Photosynthesis is correctly matched?

Which pair involving Meiosis is correctly matched?

Which pair involving Mitosis is correctly matched?

Which pair involving Gene is correctly matched?

Which pair involving DNA is correctly matched?

Which pair involving Ribosome is correctly matched?

Which pair involving Mitochondrion is correctly matched?

Which pair involving Cell is correctly matched?

Free MCQs with Answers and Explanations