Plant Tissues and Anatomy — Class 11 Maharashtra HSC Biology revision notes
A 6-page visual revision sheet for Plant Tissues and Anatomy, written for Class 11 Maharashtra HSC 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.
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Plant Tissues and Anatomy in one look
meristematic and permanent tissue, the three tissue systems, and the anatomy of root, stem and leaf
Tissue and Meristematic Tissue
anatomy is the study of internal structure
a tissue: similar or dissimilar cells sharing a common function and origin
two groups by ability to divide: meristematic and permanent
meristematic cells: young, living, able to divide; polyhedral or isodiametric, no intercellular spaces
thin, elastic, cellulosic wall; dense protoplasm, distinct central nucleus
tiny or absent vacuoles; high rate of metabolism
Meristem by Origin
promeristem (primordial/embryonic meristem): a minute area right at the root and shoot tips
primary meristem: from the promeristem, at root and shoot apices, present from the start
its dividing cells produce all the permanent tissues
secondary meristem: develops later from living tissue that regains the ability to divide
always lateral in position, e.g. fascicular, interfascicular, cork cambium
Meristem by Position
apical: growing point at root, shoot and branch tips; increases plant length
apical is terminal in the shoot, sub-terminal (behind the root cap) in the root
intercalary: base of an internode or a leaf; short lived, mainly active in monocots
lateral: sides of the central axis; increases girth
e.g. intrafascicular cambium in gymnosperm and dicot bundles
Meristem by Function
protoderm: forms the protective covering, epidermis, around plant organs
procambium: develops the primary vascular tissue
ground meristem: builds cortex, endodermis, pericycle, medullary rays and pith
meristem-derived parenchyma: distinct intercellular spaces, connected by plasmodesmata
it can dedifferentiate back into vascular or cork cambium during secondary growth
Meristem, Three Classifications Side by Side
By origin
By position
By function
Promeristem
Apical
Protoderm
Primary meristem
Intercalary
Procambium
Secondary meristem
Lateral
Ground meristem
Page 1 of 6. The full sheet, all 6 pages, opens free in the app.
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 Tissues and Anatomy 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.