Ch 05 - Morphology of Flowering Plants11th Biology
Katherine Esau & Plant Anatomy
Which prominent biologist's 1960 publication is famously referred to as the 'Webster’s of plant biology', and what was her major discovery regarding the curly top virus?
Which prominent biologist's 1960 publication is famously referred to as the 'Webster’s of plant biology', and what was her major discovery regarding the curly top virus?
• Scientist: Katherine Esau.
• Major Discovery: She proved that the curly top virus spreads through a plant strictly via the food-conducting or phloem tissue.
• Publication: Her 1960 book, The Anatomy of Seed Plants, is an encyclopedic work universally referred to as the Webster’s of plant biology.
Prism Memory Hook
Esaus P P: Phloem path for the virus, Plant Anatomy pioneer.
The Three Root Systems
Differentiate between Tap, Fibrous, and Adventitious root systems based strictly on their embryonic origin and provide examples.
Differentiate between Tap, Fibrous, and Adventitious root systems based strictly on their embryonic origin and provide examples.
• Tap Root System: Develops strictly from the direct elongation of the radicle. (e.g., Dicotyledons like Mustard).
• Fibrous Root System: The primary root is short-lived; roots originate strictly from the base of the stem. (e.g., Monocotyledons like Wheat).
• Adventitious Root System: Roots arise strictly from parts of the plant other than the radicle. (e.g., Grass, Monstera, Banyan tree).
Prism Memory Hook
F B S (Fibrous = Base of Stem); A O R (Adventitious = Other than Radicle).
Anatomical Regions of the Root
Trace the anatomical journey of a root from its apex upwards. Which specific zone is strictly responsible for water absorption?
Trace the anatomical journey of a root from its apex upwards. Which specific zone is strictly responsible for water absorption?
Moving upwards from the apex:
- Root Cap: Thimble-like structure protecting the tender apex.
- Region of Meristematic Activity: Cells are very small, thin-walled, with dense protoplasm; divide repeatedly.
- Region of Elongation: Cells undergo rapid elongation and enlargement (responsible for length growth).
- Region of Maturation: Cells differentiate and mature. Epidermal cells here form Root Hairs, which are strictly responsible for absorbing water and minerals.
Prism Memory Hook
C M E M: Cap, Meristematic, Elongation, Maturation.
Also in this chapter
43 more cards to study in Prism
- 4Root Modifications for Support
- 5Root Modifications: Storage & Respiration
- 6The Stem: Origin and Defining Traits
- 7Underground Stem Modifications
- 8Sub-aerial Stem Modifications
- 9Aerial Stem Modifications: Tendrils vs. Thorns
- 10Stem Modifications: Phylloclade
- 11Edible Parts of Onion and Garlic
- 12Parts of a Leaf: Base Modifications
- 13Physiological Function of the Petiole
- 14Leaf Venation: Reticulate vs. Parallel
- 15Simple vs. Compound Leaves
- 16Phyllotaxy Whorled & Leaf Modifications
- 17Types of Compound Leaves: Pinnate vs. Palmate
- 18Phyllotaxy: Alternate and Opposite
- 19Flower Symmetry: Actinomorphic
- 20Flower Symmetry: Zygomorphic & Asymmetric
- 21Insectivorous Leaf Modifications
- 22Racemose vs. Cymose Inflorescence
- 23Aestivation: Valvate & Twisted
- 24Aestivation: Imbricate & Vexillary
- 25Position of Ovary: Hypogynous (Superior)
- 26Position of Ovary: Perigynous (Half-Inferior)
- 27Position of Ovary: Epigynous (Inferior)
- 28Androecium: Cohesion (Adelphy)
- 29Androecium: Staminode & Filament Variations
- 30Gynoecium: Apocarpous vs. Syncarpous
- 31Placentation: Marginal vs. Axile
- 32Placentation: Parietal & The False Septum
- 33Placentation: Free Central vs. Basal
- 34Parthenocarpic Fruits
- 35The Drupe Fruit: Mango vs. Coconut
- 36Floral Formula: Family Fabaceae
- 37Dicot Seed Anatomy: Seed Coat & Embryonal Axis
- 38Endospermic vs. Non-endospermic Seeds
- 39Floral Formula: Family Solanaceae
- 40Monocot Seed Anatomy: Maize Grain
- 41Floral Formula Standard Symbols
- 42Floral Formula: Family Liliaceae
- 43Family Fabaceae (Leguminosae) Characteristics
- 44Family Solanaceae (Potato Family) Characteristics
- 45Family Liliaceae (Lily Family) Characteristics
- 46Economic Importance: Medicinal Plants across Families
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