Biology (School & UG)

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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. Which plant-derived substance is known to lower cholesterol levels in humans?
  • A. Psyllium
  • B. Saponins
  • C. Tannins
  • D. Resins
Q. Which plant-derived substance is known to lower cholesterol levels?
  • A. Beta-glucans
  • B. Tannins
  • C. Saponins
  • D. Alkaloids
Q. Which plant-derived substance is often used to treat anxiety and promote relaxation?
  • A. Valerian root
  • B. Echinacea
  • C. Ginger
  • D. Peppermint
Q. Which plant-derived substance is used to lower cholesterol levels?
  • A. Psyllium
  • B. Caffeine
  • C. Tannins
  • D. Saponins
Q. Which process allows for genetic variation in plant populations, contributing to evolution?
  • A. Mitosis
  • B. Meiosis
  • C. Cloning
  • D. Asexual reproduction
Q. Which process allows for the transfer of genetic material between different plant species?
  • A. Hybridization
  • B. Cloning
  • C. Asexual reproduction
  • D. Apomixis
Q. Which process allows plants to adapt to different environments over time?
  • A. Photosynthesis
  • B. Transpiration
  • C. Evolution
  • D. Respiration
Q. Which process allows plants to convert light energy into chemical energy?
  • A. Respiration
  • B. Photosynthesis
  • C. Transpiration
  • D. Fermentation
Q. Which process allows plants to convert sunlight into chemical energy?
  • A. Respiration
  • B. Photosynthesis
  • C. Transpiration
  • D. Fermentation
Q. Which process allows plants to evolve new traits in response to environmental changes?
  • A. Mutation
  • B. Translocation
  • C. Grafting
  • D. Cloning
Q. Which process allows plants to reproduce asexually through runners?
  • A. Budding
  • B. Fragmentation
  • C. Vegetative propagation
  • D. Pollination
Q. Which process can lead to the rapid evolution of plant traits in response to environmental pressures?
  • A. Stabilizing selection
  • B. Directional selection
  • C. Disruptive selection
  • D. All of the above
Q. Which process converts light energy into chemical energy in plants?
  • A. Respiration
  • B. Transpiration
  • C. Photosynthesis
  • D. Fermentation
Q. Which process describes the copying of DNA to produce two identical DNA molecules?
  • A. Transcription
  • B. Translation
  • C. Replication
  • D. Recombination
Q. Which process describes the exchange of genetic material between homologous chromosomes during meiosis?
  • A. Transcription
  • B. Crossing over
  • C. Replication
  • D. Translation
Q. Which process describes the growth of a plant in response to light?
  • A. Phototropism
  • B. Gravitropism
  • C. Thigmotropism
  • D. Hydrotropism
Q. Which process describes the growth of a plant towards light?
  • A. Phototropism
  • B. Gravitropism
  • C. Thigmotropism
  • D. Hydrotropism
Q. Which process directly follows transcription in the central dogma?
  • A. Replication
  • B. Translation
  • C. Splicing
  • D. Translocation
Q. Which process involves the conversion of light energy into chemical energy in plants?
  • A. Respiration
  • B. Photosynthesis
  • C. Transpiration
  • D. Fermentation
Q. Which process involves the conversion of mRNA into a protein?
  • A. Replication
  • B. Transcription
  • C. Translation
  • D. Translocation
Q. Which process involves the synthesis of RNA from a DNA template?
  • A. Translation
  • B. Replication
  • C. Transcription
  • D. Mutation
Q. Which process involves the transfer of genetic material from one generation of plants to the next?
  • A. Transcription
  • B. Translation
  • C. Replication
  • D. Inheritance
Q. Which process involves the transfer of pollen from the male anther to the female stigma?
  • A. Fertilization
  • B. Pollination
  • C. Germination
  • D. Photosynthesis
Q. Which process is primarily responsible for the movement of water from roots to leaves in plants?
  • A. Transpiration
  • B. Photosynthesis
  • C. Respiration
  • D. Germination
Q. Which process is primarily responsible for the movement of water through xylem?
  • A. Active transport
  • B. Diffusion
  • C. Transpiration
  • D. Osmosis
Q. Which process occurs during the dark reactions of photosynthesis?
  • A. Photolysis of water
  • B. Carbon fixation
  • C. Light absorption
  • D. Oxygen release
Q. Which process occurs during the light reactions of photosynthesis?
  • A. Carbon fixation
  • B. Water splitting
  • C. Glucose synthesis
  • D. Oxygen uptake
Q. Which process occurs in the dark reactions of photosynthesis?
  • A. Photolysis of water
  • B. Carbon fixation
  • C. Light absorption
  • D. Electron transport chain
Q. Which reproductive strategy involves the development of offspring inside the mother's body?
  • A. Oviparity
  • B. Viviparity
  • C. Ovoviviparity
  • D. Asexual reproduction
Q. Which reproductive strategy involves the production of seeds without fertilization?
  • A. Apomixis
  • B. Cross-pollination
  • C. Self-pollination
  • D. Grafting
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