Plant Growth and Development — Class 11 CBSE Biology revision notes
A 4-page visual revision sheet for Plant Growth and Development, written for Class 11 CBSE Biology. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
Page 1 as PDF
Plant Growth and Development in one look
an irreversible increase in size, steered by a handful of chemical signals
Growth, the basic idea
- an irreversible, permanent increase in size (in volume, mass or cell number), unlike a reversible change such as swelling from water uptake
- a plant keeps growing throughout its life because it retains regions of continuously dividing cells, called meristems, at its root and shoot tips (and in many plants, in a lateral ring too)
- growth at the cellular level runs through three phases in sequence: cell division (in the meristem itself), cell elongation (just behind it), and cell differentiation (further back still, where cells mature into their final specialised form)
Three phases of growth, one place each
- Cell division: in the meristem itself; cell number increases
- Cell elongation: just behind the meristem; cells enlarge, vacuoles expand
- Cell differentiation: further back; cells mature into their specialised final form
Page 1 of 4. The full sheet, all 4 pages, opens free in the app.
What this Plant Growth and Development sheet covers
- Growth, the basic idea
- Three phases of growth, one place each
- Cell division
- Cell elongation
- Cell differentiation
- Arithmetic and geometric growth
- Counting a geometrically growing population
- Plant growth regulators, the shared traits
- Five regulators, one signature role each
- Auxins
- Gibberellins
- Cytokinins
- Ethylene
- Abscisic acid
- Auxin, a concentration-dependent effect
- Photoperiodism and vernalisation
- Naming the growth pattern
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Biology chapter by chapter against your real exam dates and free hours, and when the plan reaches Plant Growth and Development the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.
More Biology Class 11 revision notes
- Anatomy of Flowering Plants
- Animal Kingdom
- Biological Classification
- Biomolecules
- Body Fluids and Circulation
- Breathing and Exchange of Gases
- Cell Cycle and Cell Division
- Cell: The Unit of Life
- Chemical Coordination and Integration
- Excretory Products and their Elimination
- Locomotion and Movement
- Morphology of Flowering Plants
- Neural Control and Coordination
- Photosynthesis in Higher Plants
- Plant Kingdom
- Respiration in Plants
- Structural Organisation in Animals
- The Living World