Botany is the branch of Biology that focuses on the study of plants , their structure, functions, growth, reproduction, and role in the environment. This category is curated for school students (Classes 6–12) and undergraduate learners to build strong fundamentals with exam-focused clarity.
In this section, you’ll explore:
Plant morphology, anatomy, and physiology explained step-by-step
Reproduction in plants , development, and life cycles
Cell biology, genetics, and biotechnology concepts related to plants
Ecology and plant diversity with real-world relevance
Important questions, MCQs, diagrams, and revision notes for exams
The content is aligned with NCERT , school boards, and UG syllabi , making it highly useful for school exams, NEET preparation, and college assessments . Concepts are explained in simple language with a focus on understanding, not rote learning.
Build a strong foundation in plant sciences and master Botany with confidence.
Q. Which process allows for genetic variation in plant populations, contributing to evolution?
A.
Mitosis
B.
Meiosis
C.
Cloning
D.
Asexual reproduction
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Solution
Meiosis is the process that allows for genetic variation in plant populations, which is essential for evolution.
Correct Answer:
B
— Meiosis
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Q. Which process allows for the transfer of genetic material between different plant species?
A.
Hybridization
B.
Cloning
C.
Asexual reproduction
D.
Apomixis
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Solution
Hybridization allows for the transfer of genetic material between different plant species, leading to new varieties.
Correct Answer:
A
— Hybridization
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Q. Which process allows plants to adapt to different environments over time?
A.
Photosynthesis
B.
Transpiration
C.
Evolution
D.
Respiration
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Solution
Evolution allows plants to adapt to different environments over time through mechanisms like natural selection.
Correct Answer:
C
— Evolution
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Q. Which process allows plants to convert light energy into chemical energy?
A.
Respiration
B.
Photosynthesis
C.
Transpiration
D.
Fermentation
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Solution
Photosynthesis is the process by which plants convert light energy into chemical energy stored in glucose.
Correct Answer:
B
— Photosynthesis
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Q. Which process allows plants to convert sunlight into chemical energy?
A.
Respiration
B.
Photosynthesis
C.
Transpiration
D.
Fermentation
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Solution
Photosynthesis is the process by which plants convert sunlight into chemical energy, producing glucose and oxygen.
Correct Answer:
B
— Photosynthesis
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Q. Which process allows plants to evolve new traits in response to environmental changes?
A.
Mutation
B.
Translocation
C.
Grafting
D.
Cloning
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Solution
Mutation introduces new genetic variations, which can lead to the evolution of new traits in response to environmental changes.
Correct Answer:
A
— Mutation
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Q. Which process allows plants to reproduce asexually through runners?
A.
Budding
B.
Fragmentation
C.
Vegetative propagation
D.
Pollination
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Solution
Vegetative propagation is a form of asexual reproduction where new plants grow from runners or stolons.
Correct Answer:
C
— Vegetative propagation
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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
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Solution
All types of selection (stabilizing, directional, and disruptive) can lead to rapid evolution of plant traits in response to environmental pressures.
Correct Answer:
D
— All of the above
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Q. Which process converts light energy into chemical energy in plants?
A.
Respiration
B.
Transpiration
C.
Photosynthesis
D.
Fermentation
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Solution
Photosynthesis converts light energy into chemical energy stored in glucose.
Correct Answer:
C
— Photosynthesis
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Q. Which process describes the copying of DNA to produce two identical DNA molecules?
A.
Transcription
B.
Translation
C.
Replication
D.
Recombination
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Solution
Replication is the process by which DNA is copied to produce two identical DNA molecules.
Correct Answer:
C
— Replication
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Q. Which process describes the exchange of genetic material between homologous chromosomes during meiosis?
A.
Transcription
B.
Crossing over
C.
Replication
D.
Translation
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Solution
Crossing over is the process where homologous chromosomes exchange genetic material, increasing genetic diversity.
Correct Answer:
B
— Crossing over
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Q. Which process describes the growth of a plant in response to light?
A.
Phototropism
B.
Gravitropism
C.
Thigmotropism
D.
Hydrotropism
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Solution
Phototropism is the growth of a plant in response to light direction.
Correct Answer:
A
— Phototropism
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Q. Which process describes the growth of a plant towards light?
A.
Phototropism
B.
Gravitropism
C.
Thigmotropism
D.
Hydrotropism
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Solution
Phototropism is the growth of a plant towards light, driven by differential growth rates.
Correct Answer:
A
— Phototropism
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Q. Which process involves the conversion of light energy into chemical energy in plants?
A.
Respiration
B.
Photosynthesis
C.
Transpiration
D.
Fermentation
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Solution
Photosynthesis is the process that converts light energy into chemical energy in the form of glucose.
Correct Answer:
B
— Photosynthesis
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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
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Solution
Inheritance is the process by which genetic material is passed from parents to offspring.
Correct Answer:
D
— Inheritance
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Q. Which process involves the transfer of pollen from the male anther to the female stigma?
A.
Fertilization
B.
Pollination
C.
Germination
D.
Photosynthesis
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Solution
Pollination is the process of transferring pollen to enable fertilization.
Correct Answer:
B
— Pollination
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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
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Solution
Transpiration is the process that drives the movement of water from the roots through the plant to the leaves.
Correct Answer:
A
— Transpiration
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Q. Which process is primarily responsible for the movement of water through xylem?
A.
Active transport
B.
Diffusion
C.
Transpiration
D.
Osmosis
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Solution
Transpiration creates a negative pressure in the leaves, which pulls water upward through the xylem.
Correct Answer:
C
— Transpiration
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Q. Which process occurs during the dark reactions of photosynthesis?
A.
Photolysis of water
B.
Carbon fixation
C.
Light absorption
D.
Oxygen release
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Solution
Carbon fixation occurs during the dark reactions, specifically in the Calvin cycle.
Correct Answer:
B
— Carbon fixation
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Q. Which process occurs during the light reactions of photosynthesis?
A.
Carbon fixation
B.
Water splitting
C.
Glucose synthesis
D.
Oxygen uptake
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Solution
Water splitting occurs during the light reactions, producing oxygen and electrons.
Correct Answer:
B
— Water splitting
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Q. Which process occurs in the dark reactions of photosynthesis?
A.
Photolysis of water
B.
Carbon fixation
C.
Light absorption
D.
Electron transport chain
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Solution
Carbon fixation occurs during the dark reactions of photosynthesis.
Correct Answer:
B
— Carbon fixation
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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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Solution
Apomixis allows plants to produce seeds asexually, bypassing the need for fertilization, which can be advantageous in stable environments.
Correct Answer:
A
— Apomixis
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Q. Which reproductive strategy involves the use of flowers to attract specific pollinators?
A.
Asexual reproduction
B.
Self-pollination
C.
Cross-pollination
D.
Vegetative propagation
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Solution
Cross-pollination relies on flowers to attract specific pollinators, facilitating genetic exchange and diversity among plant populations.
Correct Answer:
C
— Cross-pollination
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Q. Which stage of the plant life cycle is characterized by the formation of gametes?
A.
Sporophyte
B.
Gametophyte
C.
Seedling
D.
Mature plant
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Solution
The gametophyte stage is where gametes are produced in the plant life cycle.
Correct Answer:
B
— Gametophyte
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Q. Which structure develops into fruit after fertilization?
A.
Stamen
B.
Pistil
C.
Ovary
D.
Sepal
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Solution
The ovary of the flower develops into fruit after fertilization, enclosing the seeds.
Correct Answer:
C
— Ovary
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Q. Which structure in plant cells contains chlorophyll?
A.
Mitochondria
B.
Chloroplasts
C.
Nucleus
D.
Ribosomes
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Solution
Chloroplasts are the organelles that contain chlorophyll and are the site of photosynthesis.
Correct Answer:
B
— Chloroplasts
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Q. Which structure in plant cells is responsible for packaging and distributing proteins?
A.
Golgi apparatus
B.
Lysosome
C.
Nucleus
D.
Vacuole
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Solution
The Golgi apparatus modifies, sorts, and packages proteins for secretion or delivery to other organelles.
Correct Answer:
A
— Golgi apparatus
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Q. Which structure in plant cells is responsible for storing genetic information?
A.
Nucleus
B.
Ribosomes
C.
Chloroplast
D.
Vacuole
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Solution
The nucleus contains the cell's genetic material (DNA) and is responsible for storing and managing genetic information.
Correct Answer:
A
— Nucleus
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Q. Which structure in plant cells is responsible for the synthesis of ATP?
A.
Chloroplast
B.
Mitochondrion
C.
Nucleus
D.
Golgi apparatus
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Solution
Mitochondria are responsible for synthesizing ATP through the process of cellular respiration.
Correct Answer:
B
— Mitochondrion
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Q. Which structure in plant cells is selectively permeable and regulates the movement of substances?
A.
Cell wall
B.
Plasma membrane
C.
Nucleus
D.
Vacuole
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Solution
The plasma membrane is selectively permeable, controlling the entry and exit of substances in and out of the cell.
Correct Answer:
B
— Plasma membrane
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