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 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 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 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 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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Q. Which structure in plant leaves is primarily responsible for gas exchange?
A.
Stomata
B.
Cuticle
C.
Chloroplasts
D.
Xylem vessels
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Solution
Stomata are small openings on the leaf surface that allow for gas exchange, including the intake of carbon dioxide and the release of oxygen.
Correct Answer:
A
— Stomata
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Q. Which structure in plants is primarily involved in reproduction?
A.
Roots
B.
Leaves
C.
Flowers
D.
Stems
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Solution
Flowers are the reproductive structures in angiosperms, facilitating pollination and seed production.
Correct Answer:
C
— Flowers
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Q. Which structure in the flower is responsible for receiving pollen?
A.
Stamen
B.
Pistil
C.
Sepal
D.
Petal
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Solution
The pistil, which includes the stigma, style, and ovary, is responsible for receiving pollen during pollination.
Correct Answer:
B
— Pistil
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Q. Which structure is responsible for maintaining turgor pressure in plant cells?
A.
Cell wall
B.
Chloroplast
C.
Vacuole
D.
Nucleus
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Solution
The vacuole stores water and helps maintain turgor pressure, which is essential for plant structure and support.
Correct Answer:
C
— Vacuole
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Q. Which structure is responsible for the production of pollen in flowering plants?
A.
Stigma
B.
Anther
C.
Ovary
D.
Style
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Solution
The anther is the part of the stamen that produces pollen in flowering plants.
Correct Answer:
B
— Anther
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Q. Which structure is responsible for the synthesis of ATP in plant cells?
A.
Chloroplast
B.
Mitochondrion
C.
Nucleus
D.
Golgi apparatus
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Solution
Mitochondria synthesize ATP through the process of cellular respiration, providing energy for cellular activities.
Correct Answer:
B
— Mitochondrion
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Q. Which structure protects the developing seeds in angiosperms?
A.
Petals
B.
Sepals
C.
Ovary
D.
Stamen
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Solution
The ovary protects the developing seeds and will mature into the fruit after fertilization.
Correct Answer:
C
— Ovary
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Q. Which technique is commonly used for DNA sequencing?
A.
Polymerase chain reaction (PCR)
B.
Gel electrophoresis
C.
Sanger sequencing
D.
Western blotting
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Solution
Sanger sequencing is a widely used method for determining the nucleotide sequence of DNA.
Correct Answer:
C
— Sanger sequencing
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Q. Which tissue is primarily involved in the transport of sugars in plants?
A.
Xylem
B.
Phloem
C.
Cortex
D.
Pith
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Solution
Phloem is responsible for the transport of sugars and other metabolic products downward from the leaves.
Correct Answer:
B
— Phloem
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Q. Which tissue is responsible for the transport of sugars in plants?
A.
Xylem
B.
Phloem
C.
Cortex
D.
Pith
Show solution
Solution
Phloem is responsible for the transport of sugars and other metabolic products downward from the leaves.
Correct Answer:
B
— Phloem
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Q. Which type of bacteria is commonly used in the production of yogurt?
A.
Lactobacillus
B.
Escherichia
C.
Streptococcus
D.
Bacillus
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Solution
Lactobacillus species are lactic acid bacteria that ferment lactose to produce yogurt.
Correct Answer:
A
— Lactobacillus
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Q. Which type of cell is primarily involved in the structural support of young stems?
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Meristematic
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Solution
Collenchyma cells provide flexible support to young stems and petioles, allowing for growth and movement.
Correct Answer:
B
— Collenchyma
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Q. Which type of cell is responsible for the transport of water in plants?
A.
Phloem
B.
Xylem
C.
Parenchyma
D.
Collenchyma
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Solution
Xylem cells are specialized for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer:
B
— Xylem
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Q. Which type of cell is responsible for transporting water in plants?
A.
Phloem
B.
Xylem
C.
Parenchyma
D.
Collenchyma
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Solution
Xylem cells are responsible for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer:
B
— Xylem
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Q. Which type of cell provides rigid support and is often dead at maturity?
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Meristematic
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Solution
Sclerenchyma cells provide rigid support and are typically dead at maturity, contributing to the structural integrity of the plant.
Correct Answer:
C
— Sclerenchyma
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Q. Which type of meristem is responsible for the increase in length of roots and shoots?
A.
Lateral meristem
B.
Apical meristem
C.
Intercalary meristem
D.
Cork cambium
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Solution
Apical meristem is responsible for the primary growth, leading to an increase in length of roots and shoots.
Correct Answer:
B
— Apical meristem
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Q. Which type of meristem is responsible for the increase in length of stems and roots?
A.
Lateral meristem
B.
Apical meristem
C.
Intercalary meristem
D.
Cork cambium
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Solution
Apical meristems are located at the tips of roots and stems and are responsible for primary growth, increasing length.
Correct Answer:
B
— Apical meristem
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Q. Which type of meristematic tissue is responsible for the increase in length of roots and shoots?
A.
Lateral meristem
B.
Apical meristem
C.
Intercalary meristem
D.
Cork cambium
Show solution
Solution
Apical meristem is responsible for the primary growth, leading to an increase in length of roots and shoots.
Correct Answer:
B
— Apical meristem
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Q. Which type of microbe is primarily responsible for the fermentation process in bread making?
A.
Lactic acid bacteria
B.
Yeasts
C.
Molds
D.
Actinomycetes
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Solution
Yeasts, particularly Saccharomyces cerevisiae, are responsible for fermentation in bread making, producing carbon dioxide that helps the dough rise.
Correct Answer:
B
— Yeasts
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Q. Which type of plant cell is dead at maturity and provides rigid support?
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Meristematic
Show solution
Solution
Sclerenchyma cells are dead at maturity and provide structural support due to their thick, lignified walls.
Correct Answer:
C
— Sclerenchyma
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Q. Which type of plant cell is involved in the transport of water and minerals?
A.
Phloem
B.
Xylem
C.
Parenchyma
D.
Collenchyma
Show solution
Solution
Xylem cells are specialized for the transport of water and minerals from the roots to the aerial parts of the plant.
Correct Answer:
B
— Xylem
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Q. Which type of plant cell is primarily involved in photosynthesis?
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Xylem
Show solution
Solution
Parenchyma cells, especially those in the leaves, contain chloroplasts and are primarily involved in photosynthesis.
Correct Answer:
A
— Parenchyma
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