Biology is the science of life — from the tiniest cell to the most complex human systems. This category is designed to support school students (Classes 6–12) as well as undergraduate (UG) learners with clear explanations, exam-focused content, and concept-building resources. You’ll find:
Concept-wise explanations aligned with NCERT and common UG syllabi
Important questions & answers for school exams, NEET foundation, and college tests
Human physiology, genetics, ecology, biotechnology, and cell biology explained simply
Practice questions, MCQs, and revision notes to strengthen understanding
Doubt-solving and conceptual clarity for competitive and academic success
Whether you’re preparing for school exams , building a strong base for NEET , or studying Biology at the undergraduate level , this section helps you learn smarter, revise faster, and understand Biology deeply — not just memorize it.
Learn life sciences the right way — clear concepts, exam relevance, and real understanding.
Q. What is the term for the process by which plants lose water vapor to the atmosphere?
A.
Transpiration
B.
Photosynthesis
C.
Respiration
D.
Germination
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Solution
Transpiration is the process of water vapor loss from plant surfaces, primarily through stomata.
Correct Answer:
A
— Transpiration
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Q. What is the term for the process by which plants lose water vapor?
A.
Transpiration
B.
Respiration
C.
Photosynthesis
D.
Germination
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Solution
Transpiration is the process of water vapor loss from plant surfaces, mainly through stomata.
Correct Answer:
A
— Transpiration
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Q. What is the term for the process by which plants produce seeds without fertilization?
A.
Apomixis
B.
Parthenogenesis
C.
Cloning
D.
Grafting
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Solution
Apomixis is the process where seeds are produced without fertilization, allowing for asexual reproduction.
Correct Answer:
A
— Apomixis
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Q. What is the term for the process by which plants produce their own food using sunlight?
A.
Respiration
B.
Photosynthesis
C.
Fermentation
D.
Transpiration
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Solution
Photosynthesis is the process by which plants convert sunlight into chemical energy.
Correct Answer:
B
— Photosynthesis
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Q. What is the term for the process by which plants respond to light direction?
A.
Phototropism
B.
Gravitropism
C.
Thigmotropism
D.
Hydrotropism
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Solution
Phototropism is the growth response of plants to light direction.
Correct Answer:
A
— Phototropism
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Q. What is the term for the process by which plants respond to light?
A.
Phototropism
B.
Gravitropism
C.
Thigmotropism
D.
Hydrotropism
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Solution
Phototropism is the growth response of plants to light direction.
Correct Answer:
A
— Phototropism
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Q. What is the term for the process by which seeds are dispersed by animals?
A.
Anemochory
B.
Hydrochory
C.
Zoochory
D.
Autochory
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Solution
Zoochory refers to seed dispersal by animals, which can help in the spread of plant species.
Correct Answer:
C
— Zoochory
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Q. What is the term for the process by which seeds are spread away from the parent plant?
A.
Germination
B.
Pollination
C.
Dispersal
D.
Fertilization
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Solution
Dispersal is the process that allows seeds to be spread away from the parent plant, reducing competition and increasing the chances of successful germination.
Correct Answer:
C
— Dispersal
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Q. What is the term for the process by which seeds develop into new plants?
A.
Germination
B.
Pollination
C.
Fertilization
D.
Photosynthesis
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Solution
Germination is the process by which seeds develop into new plants under suitable conditions.
Correct Answer:
A
— Germination
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Q. What is the term for the process by which seeds remain dormant until conditions are favorable for germination?
A.
Germination
B.
Dormancy
C.
Pollination
D.
Fertilization
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Solution
Dormancy is the state in which seeds remain inactive until environmental conditions are suitable for germination.
Correct Answer:
B
— Dormancy
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Q. What is the term for the process by which species evolve over time?
A.
Natural selection
B.
Adaptation
C.
Speciation
D.
Evolution
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Solution
Evolution is the term used to describe the process by which species change over time through genetic variation and natural selection.
Correct Answer:
D
— Evolution
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Q. What is the term for the process by which sperm and egg cells fuse?
A.
Fertilization
B.
Cleavage
C.
Gastrulation
D.
Implantation
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Solution
Fertilization is the process where sperm and egg cells fuse to form a zygote.
Correct Answer:
A
— Fertilization
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Q. What is the term for the process by which sperm and egg unite?
A.
Fertilization
B.
Implantation
C.
Ovulation
D.
Gestation
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Solution
Fertilization is the process where sperm and egg unite to form a zygote.
Correct Answer:
A
— Fertilization
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Q. What is the term for the process of breathing in?
A.
Exhalation
B.
Inhalation
C.
Ventilation
D.
Respiration
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Solution
Inhalation is the process of taking air into the lungs, while exhalation is the process of breathing out.
Correct Answer:
B
— Inhalation
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Q. What is the term for the process of breathing out?
A.
Inhalation
B.
Exhalation
C.
Ventilation
D.
Respiration
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Solution
Exhalation is the process of breathing out, where carbon dioxide is expelled from the lungs.
Correct Answer:
B
— Exhalation
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Q. What is the term for the process of sperm and egg fusion?
A.
Fertilization
B.
Cleavage
C.
Gastrulation
D.
Implantation
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Solution
Fertilization is the process where a sperm cell merges with an egg cell to form a zygote.
Correct Answer:
A
— Fertilization
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Q. What is the term for the relationship between plants and pollinators?
A.
Mutualism
B.
Commensalism
C.
Parasitism
D.
Competition
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Solution
The relationship between plants and pollinators is a mutualistic one, where both parties benefit from the interaction.
Correct Answer:
A
— Mutualism
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Q. What is the term for the release of an egg from the ovary?
A.
Fertilization
B.
Menstruation
C.
Ovulation
D.
Implantation
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Solution
Ovulation is the process of releasing an egg from the ovary, typically occurring once a month.
Correct Answer:
C
— Ovulation
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Q. What is the term for the scientific naming system used in plant taxonomy?
A.
Phylogeny
B.
Binomial nomenclature
C.
Cladistics
D.
Morphology
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Solution
The scientific naming system used in plant taxonomy is called binomial nomenclature.
Correct Answer:
B
— Binomial nomenclature
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Q. What is the term for the study of plant classification and naming?
A.
Botany
B.
Ecology
C.
Taxonomy
D.
Morphology
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Solution
Taxonomy is the science of classifying and naming organisms, including plants.
Correct Answer:
C
— Taxonomy
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Q. What is the term for the study of plant classification?
A.
Botany
B.
Phytology
C.
Taxonomy
D.
Morphology
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Solution
Taxonomy is the science of classification of living organisms, including plants.
Correct Answer:
C
— Taxonomy
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Q. What is the term for the symbiotic relationship between fungi and plant roots?
A.
Mycorrhiza
B.
Nitrogen fixation
C.
Chlorosis
D.
Grafting
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Solution
Mycorrhiza refers to the symbiotic association between fungi and plant roots, enhancing nutrient uptake.
Correct Answer:
A
— Mycorrhiza
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Q. What is the term for the symbiotic relationship between plants and nitrogen-fixing bacteria?
A.
Mutualism
B.
Commensalism
C.
Parasitism
D.
Competition
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Solution
The relationship between plants and nitrogen-fixing bacteria is a mutualistic symbiosis.
Correct Answer:
A
— Mutualism
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Q. What is the term for the transfer of pollen from the anther to the stigma?
A.
Fertilization
B.
Pollination
C.
Germination
D.
Seed dispersal
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Solution
Pollination is the process of transferring pollen from the anther to the stigma of a flower.
Correct Answer:
B
— Pollination
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Q. What is the term for the transfer of pollen from the male anther to the female stigma?
A.
Fertilization
B.
Pollination
C.
Germination
D.
Seed dispersal
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Solution
Pollination is the process of transferring pollen from the male anther to the female stigma, which is essential for fertilization.
Correct Answer:
B
— Pollination
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Q. What is the term for the volume of air inhaled or exhaled in a normal breath?
A.
Tidal volume
B.
Vital capacity
C.
Residual volume
D.
Total lung capacity
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Solution
Tidal volume is the amount of air that is inhaled or exhaled during a normal breath.
Correct Answer:
A
— Tidal volume
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Q. What is the term for the volume of air that remains in the lungs after a forced exhalation?
A.
Tidal volume
B.
Vital capacity
C.
Residual volume
D.
Inspiratory reserve volume
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Solution
Residual volume is the amount of air that remains in the lungs after a person exhales as much as possible.
Correct Answer:
C
— Residual volume
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Q. What is the term for the volume of blood pumped by the heart in one minute?
A.
Stroke volume
B.
Cardiac output
C.
Blood pressure
D.
Heart rate
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Solution
Cardiac output is the volume of blood pumped by the heart in one minute, calculated as stroke volume times heart rate.
Correct Answer:
B
— Cardiac output
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Q. What is the total lung capacity of an average adult human?
A.
3-4 L
B.
4-6 L
C.
6-8 L
D.
8-10 L
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Solution
The total lung capacity of an average adult human is approximately 4-6 liters.
Correct Answer:
B
— 4-6 L
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Q. What is the total number of orders in the plant kingdom according to the latest classification?
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Solution
The latest classification recognizes approximately 90 orders in the plant kingdom.
Correct Answer:
C
— 90
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