Pinnately Compound Leaf Notes
Compound Leaves
Compound leaves are a type of leaf structure, where the lamina is divided into multiple leaflets or pinnules. In the case of pinnately compound leaves, the leaflets are attached to a common axis, called the rachis, which is the midrib.
Leaves can be divided into two types based on the division of the lamina:
- Simple Leaves - which are undivided, or have incisions that do not reach the midrib
- Compound Leaves - which have their lamina separated into multiple leaflets
Compound leaves are of two types:
Pinnately Compound Leaves - Here, leaflets are arranged on a common axis known as the rachis. The leaflets, or pinnules, are arranged in an opposite manner and the rachis acts as the midrib. An example of a pinnately compound leaf is the Neem leaf.
Palmately Compound Leaves - Here, the leaflets are attached at a single point at the tip of the petiole. For example, the Silk Cotton tree.
Axillary buds are not present in the axils of leaflets.
Types of Pinnately Compound Leaves
On the basis of the arrangement and number of leaflets, pinnately compound leaves can be classified into the following types:
Paripinnate - It has an even number of leaflets attached in pairs on the rachis, with the two leaflets at the end. For example, Tamarind.
Imparipinnate - Leaflets are attached in an opposite manner and an odd number of leaflets are present, with a single leaflet at the apex of the rachis. For example, Neem.
On the basis of the number of times they are divided, pinnately compound leaves are divided into the following types:
Unipinnate - These are also known as simple pinnate. In this type of leaf arrangement, leaflets are attached directly to the rachis in an alternating pattern, for example Cassia.
Bipinnate - In this type of arrangement, the primary rachis is branched and leaflets are attached to the secondary rachis, for example, Acacia.
Tripinnate - Here, the secondary rachis is further divided into tertiary rachises, to which leaflets are attached, such as in the case of Moringa.
Decompound: These leaves are composed of three or more leaflets. For example, coriander.
NEET NCERT Solutions (Biology)
- Animal Kingdom
- 16S Rrna
- Abscission
- Acromion Process Notes
- Alcoholic Fermentation
- Assisted Reproductive Technology
- Attempting Neet Biology In 45 Minutes
- Auxin
- Bioremediation Mcqs
- Bones Of Spine
- Carbon Fixation
- Chondrocytes
- Choroid
- Chromosomal Disorder In Humans
- Chromosome Number Of List Of Organisms
- Compound Leaf Notes
- Connective Tissue
- Constitutive Transcription
- Cyathium Inflorescence
- Cycas Notes
- Diadelphous Stamen Notes
- Different Stem Modifications With Examples
- Digestive System Of Balanoglossus
- Digestive System Of Frog
- Diplontic Life Cycle
- Dna Polymerases
- Double Helix Structure Of Dna
- Down Syndrome Chromosome Number
- Dryopteris
- Earthworm Digestive System
- Economic Importance Of Algae
- Emp Pathway
- Epithelial Tissue
- Equisetum
- Factors Affecting Water Potential
- Floral Formula
- Floral Formula Of Fabaceae
- Floral Formula Of Hibiscus
- Floral Formula Of Liliaceae
- Floral Formula Of Solanaceae
- Function Of Pons
- Functions Of Human Skeletal System
- Gamete Intrafallopian Transfer
- Gene Expression
- Green Algae
- Hatch And Slack Cycle
- Heterosporous Pteridophytes
- Heterozygous
- Histone
- Histone Octamer
- How Do Plants Reduce Water Loss
- Human Eye Lens
- Hypanthodium
- Iaa Hormone
- Important Notes For Neet Biology Strategies For Enhancement In Food Production
- Important Notes For Neet Living World
- Important Notes For Neet Locomotion And Movement
- Important Notes For Neet Molecular Basis Of Inheritance
- Important Notes For Neet Morphology Of Flowering Plants
- Important Notes For Neet Plant Growth And Development
- Important Notes For Neet Plant Kingdom
- Important Notes For Neet Plant Taxonomy
- Important Notes For Neet Principles Of Inheritance And Variation
- Important Notes For Neet Reproductive Health
- Krebs Cycle
- Lactational Amenorrhea
- Lag Phase
- Last Minute Guide For Neet Biology
- Leaf Venation Notes
- Leguminosae
- Lethal Genes
- Locomotory Disorders
- Log Phase
- Long Day Plants
- Maize Chromosome Number
- Marchantia
- Mcq On Animal Tissues
- Mcq On Biomass Energy
- Mcq On Cardiovascular System
- Mcq On Excretory System
- Mcq On Global Warming
- Mcq On Krebs Cycle
- Mcq On Mitochondria
- Mcq On Ozone Layer Depletion
- Mcq On Prokaryotes
- Mcq On Regualtion Of Gene Expression In Eukaryotes
- Mcqs On Amino Acids
- Mcqs On Biopesticides
- Mcqs On Blood
- Mcqs On Diseases Caused By Protozoa
- Mcqs On Epithelial Tissue
- Mcqs On Mendel Laws Of Inheritance
- Mcqs On Protein Synthesis
- Mechanism Of Vision
- Medulla Oblongata
- Midbrain Function Notes
- Mirna Notes
- Mrna Notes
- Multiple Alleles Notes
- Neet Biology Flashcards
- Neet Biology Mcq Cell Structure And Function
- Neet Biology Mcq On Dna Structure
- Neet Biology Mcq On Lipids
- Neet Biology Syllabus
- Neet Questions Animal Kingdom
- Neet Questions Biological Classification
- Neet Questions Biotechnology And Its Application
- Neet Questions Biotechnology Principles And Processes
- Neet Questions Body Fluids And Circulation
- Neet Questions Breathing And Exchange Of Gases
- Neet Questions Cell Cycle And Cell Division
- Neet Questions Cell The Unit Of Life
- Neet Questions Digestion And Absorption
- Neet Questions Evolution
- Neet Questions Human Health And Diseases
- Neet Questions Human Reproduction
- Neet Questions Locomotion And Movement
- Neet Questions Molecular Basis Of Inheritance
- Neet Questions Morphology Of Flowering Plants
- Neet Questions Neural Control And Coordination
- Neet Questions Organisms And Populations
- Neet Questions Principles Of Inheritance And Variation
- Neet Questions Reproduction In Organisms
- Neet Questions Respiration In Plants
- Neet Questions Sexual Reproduction In Flowering Plants
- Neet Questions The Living World
- Neet Questions Transport In Plants
- Neuron Physiology
- Non Vascular Plants
- Nondisjunction
- Nucleotide
- Number Of Chromosomes In Humans
- Palmately Compound Leaf Notes
- Pectoral Girdle
- Pelvic Girdle
- Pem Mcqs
- Pep Carboxylase
- Phyllotaxy Notes
- Pinnately Compound Leaf Notes
- Plant Hormones
- Plasma Membrane Mcqs
- Polygenic Inheritance
- Process Of Neural Communication
- Pteris
- Pyruvate
- Racemose Inflorescence
- Ray Florets Notes
- Respiratory Substrates
- Rice Chromosome Number
- Rna Splicing
- Rubisco
- Salvinia
- Selaginella
- Senescence And Abscission
- Sensory Receptors
- Short Notes For Neet Aneuploidy
- Short Notes For Neet Cam Plants
- Short Notes For Neet Disorders Of Bones
- Short Notes For Neet Disorders Of Joints
- Short Notes For Neet Disorders Of Muscular System
- Short Notes For Neet Glycolate Pathway
- Short Notes For Neet Hindbrain
- Short Notes For Neet Synapse
- Short Notes For Neet Trna Structure
- Significance Of Glycolysis
- Simple Diffusion
- Sirna Notes
- Somatic Embryogenesis
- Spirogyra
- Spliceosomes Notes
- Squamous Epithelial Cells
- Stress Hormones
- Structure Of Ear
- Synopsis On Tissues
- Taxonomic Keys
- Thalamus Function
- Types Of Cymose Inflorescence
- Types Of Muscular Dystrophy
- Vernalization
- Visceral Nervous System Notes
- Volvox
- What Are Floating Ribs
- What Are The Three Primary Layers Of Retina
- What Are Vascular Plants
- What Causes Down Syndrome
- What Is Acromion
- What Is Collagen
- What Is Epistasis
- What Is Stroma
- What Is Thalassemia And What Are Its Types
- What Is The Blind Spot In Eye
- What Is The Function Of Cochlea
- What Is The Function Of Cornea
- What Is The Function Of Eustachian Tube
- What Is The Function Of Iris
- What Is The Function Of Pupil
- What Is The Function Of Stroma Lamellae
- What Is The Function Of Thylakoid
- What Is The Sclera Of Eye
- What Is Turner Syndrome
- What Is Vegetative Propagation And When Is It Used
- When Does Dna Copying Occur
- Where Does The Oxygen Liberated During Photosynthesis Come From
- Where Is Optic Nerve Located
- Where Is Scapula Bone Located
- Where Is The Glenoid Cavity Located
- Which Organism Is Known As Drosophila Of Plant Kingdom
- Why Solve Mcqs For Neet Biology
