A flower that does not have a stalk and is directly attached to the stem is called a sessile flower.
Topics
Chemical Reactions and Equations
- Chemical Reactions in Daily Life
- Chemical Equations
- Balancing Chemical Equation
- Types of Chemical Reactions > Combination Reaction
- Types of Chemical Reactions > Decomposition Reaction
- Types of Chemical Reactions > Single Displacement Reaction
- Types of Chemical Reactions > Double Displacement Reaction
- Chemical Properties of Carbon Compounds > Oxidation
- The Effects of Oxidation Reactions in Everyday Life
Acids, Bases and Salts
- Acids and Bases in Daily Life
- Acids and Bases in the Laboratory
- Acids and Bases React with Metals
- Reaction of Metal Carbonates with Acids
- Acids and Bases Reaction with each other
- Reaction of Metallic Oxides with Acids
- Reaction of a Non-metallic Oxide with Base
- Common Properties of Acids and Bases
- The pH Scale
- Importance of pH in Everyday Life
- Salts > Family of Salts
- Salts > pH of Salts
- Salts > Chemicals from Common Salt
- Salts > Water in Salt Crystals
Metals and Non-metals
Carbon and its Compounds
- Importance of Carbon
- The Covalent Bond
- Allotropes of Carbon > Diamond
- Allotropes of Carbon > Graphite
- Allotropes of Carbon > Fullerene
- Carbon: A Versatile Element
- Organic Compounds
- Classification of Hydrocarbons
- Carbon Compounds: Chains, Branches, Rings
- Homologous Series
- Nomenclature
- Chemical Properties of Carbon Compounds > Combustion
- Ethanol
- Ethanoic Acid
- Soaps and Detergents
Life Processes
- Life Processes in Living Organisms
- Nutrition
- Autotrophic Nutrition
- Heterotrophic Nutrition
- Nutrition in Human Beings
- Dental Caries
- Production of ATP
- Blood Circulatory System
- Blood Vessels Entering and Leaving The Heart
- Valves of the Heart
- Tissue Fluid (Or Intercellular Fluid)
- Transportation in Plants
- Transportation of Water
- Excretion
- Excretion in Human Beings
- Kidney and Its Internal Structure
- Structure of a Kidney Tubule (Nephrons)
- Dialysis and Artificial Kidney
- Excretion in Plants
- Organ and Body Donation
Control and Co-ordination
How do Organisms Reproduce?
Heredity
Light – Reflection and Refraction
- Light and Its Straight-Line Propagation
- Reflection of Light
- Spherical Mirrors
- Image Formation by Spherical Mirrors
- Representation of Images Formed by Spherical Mirrors
- Image Formation by Concave Mirror
- Image Formation by a Convex Mirror
- Sign Convention for Reflection by Spherical Mirrors
- Ray Optics - Mirror Formula
- Refraction of Light
- Refraction through a Rectangular Glass Slab
- The Refractive Index
- Refraction by Spherical Lenses
- Image Formation by Lenses
- Image Formation in Lenses Using Ray Diagrams
- Sign Convention for Spherical Lenses
- Lens Formula
- Power of a Lens
The Human Eye and the Colourful World
- Human Eye
- Defects of Vision and Their Correction
- Defects of Vision and Their Corrections > Myopia
- Defects of Vision and Their Corrections > Hypermetropia
- Defects of Vision and Their Corrections > Presbyopia
- Refraction of Light Through a Prism
- Dispersion of Light
- Atmosphere Refraction
- Scattering of Light
Electricity
Magnetic Effects of Electric Current
- Magnetic Effect of Electric Current
- Applications of Biot-Savart's Law > Magnetic Field due to a Finite Straight Current-Carrying Wire
- Magnetic Field Due to a Current-Carrying Conductor
- Right-hand Thumb Rule
- Applications of Biot-Savart's Law > Magnetic Field at the Centre of a Circular Loop
- Applications of Ampere’s Circuital Law > Magnetic Field of a Long Straight Solenoid
- Force on a Current Carrying Conductor in a Magnetic Field
- Fleming’s Left Hand Rule
- Magnetism in Medicine
- Domestic Electric Circuits
Our Environment
Estimated time: 6 minutes
- Definition: Bisexual Flower
- Definition: Unisexual Flower
- Definition: Pedicellate Flower
- Definition: Sessile Flower
- Key Points: Sexual Reproduction in Plants
Maharashtra State Board: Class 10
Definition: Bisexual Flower
A flower that has both androecium (male part) and gynoecium (female part) in the same flower is called a bisexual flower.
Example: Hibiscus
Maharashtra State Board: Class 10
Definition: Unisexual Flower
A flower that has only one reproductive whorl (either androecium or gynoecium) is called a unisexual flower.
- If it has only androecium: male flower
- If it has only gynoecium: female flower
Example: Papaya
Maharashtra State Board: Class 10
Definition: Pedicellate Flower
A flower that has a stalk called pedicel for support is called a pedicellate flower.
Maharashtra State Board: Class 10
Definition: Sessile Flower
Maharashtra State Board: Class 10, 12
Key Points: Sexual Reproduction in Plants
- Sexual reproduction involves the fusion of male and female gametes from two parents to form a diploid zygote.
- A flower is the reproductive structure in plants that produces gametes and enables fertilisation.
- A flower has four whorls: calyx, corolla, androecium (male), and gynoecium (female).
- It includes meiosis for gamete formation and fertilisation, producing genetically different offspring.
- Sexual reproduction occurs in three stages: pre-fertilisation, fertilisation, and post-fertilisation.
Video Tutorials
Shaalaa.com | Reproduction part 12 (Sexual reproduction in plants: Sexual vs. asexual)
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Reproduction part 12 (Sexual reproduction in plants: Sexual vs. asexual)
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Reproduction part 13 (Sexual reproduction: Flower Structure)
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Reproduction part 14 ( Pollination, Fertilization)
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Reproduction part 15 (Seed formation, Germination)
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Reproduction part 20 (Fertilization between Sperm & Ovum)
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Reproduction part 21 (Sexual reproduction in human: Menstruation, Menopause)
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