Plant Anatomy: Meristem Classification and Cell Division (Part 2)
Explore “Meristem Classification and Cell Division” in this Plant Anatomy lesson. Part 2 of the five-part series brings together the source material and lesson topics. Use the contents links to find a section, read the notes, and consult the complete original teaching slides below.
Lesson topics
- Based on position
- Based on origin
- Based on function
- Based on plane of division
Contents
- Read the original document
- Based on position
- Based on origin
- Based on function
- Based on plane of division
REQUEST THE COMPLETE DOCUMENT ON WHATSAPP
Read the original source document
Plant Anatomy – Part 1 (English): original teaching slides for this study series.
Based on position
Based on position Apical meristem – Present in apices of root and shoot. It is responsible for increase in the length of the plant, it is called as primary growth Intercalary meristem – Occurs between the mature tissues. It is responsible for elongation of internodes
Lateral meristem – Occurs along the longitudinal axis of stem and root. It is responsible for secondary tissues and thickening of stem and root. Eg: vascular cambium and cork cambium.
Based on origin
Based on origin Primary Meristem – It is derived from embryonic stages and differentiated into primary permanent tissues. Secondary meristem – It is derived during later stage of development of the plant body. It produces cork cambium and interfascicular cambium.
Based on function
Based on function Protoderm – It gives rise to epidermal tissue system and develops into epidermis, stomata and hairs. Procambium – It gives rise to primary vascular tissues. Example: xylem and phloem . Ground Meristem – It gives rise to all tissues except epidermis and vascular strands.
Based on plane of division
Based on plane of division Mass meristem – It divides in all planes. Example: endosperm,young embryo and sporangium Rib meristem or File meristem – It divides anticlinally in one plane. Example: development of cortex and pith Plate meristem – It divides anticlinally in two planes. Example: development of epidermis
Review questions and answers
What are the key points about Based on position?
Based on position Apical meristem – Present in apices of root and shoot. It is responsible for increase in the length of the plant, it is called as primary growth Intercalary meristem – Occurs between the mature tissues. It is responsible for elongation of internodes Lateral meristem – Occurs along the longitudinal axis of stem and root. It is responsible…
What are the key points about Based on origin?
Based on origin Primary Meristem – It is derived from embryonic stages and differentiated into primary permanent tissues. Secondary meristem – It is derived during later stage of development of the plant body. It produces cork cambium and interfascicular cambium.
What are the key points about Based on function?
Based on function Protoderm – It gives rise to epidermal tissue system and develops into epidermis, stomata and hairs. Procambium – It gives rise to primary vascular tissues. Example: xylem and phloem . Ground Meristem – It gives rise to all tissues except epidermis and vascular strands.
What are the key points about Based on plane of division?
Based on plane of division Mass meristem – It divides in all planes. Example: endosperm,young embryo and sporangium Rib meristem or File meristem – It divides anticlinally in one plane. Example: development of cortex and pith Plate meristem – It divides anticlinally in two planes. Example: development of epidermis
More lessons from this document
- Plant Anatomy – Part 1 (English) — Part 1
- Plant Anatomy – Part 1 (English) — Part 2
- Plant Anatomy – Part 1 (English) — Part 3
- Plant Anatomy – Part 1 (English) — Part 4
- Plant Anatomy – Part 1 (English) — Part 5
Conclusion
The important points in Based on plane of division should be reviewed alongside the definitions, examples and comparisons given above. Continue with the other four articles to cover the rest of the source material.