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Plant Tissues — Meristematic

Meristematic tissue is plant tissue made of actively dividing cells that help the plant grow.

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Student-friendly explanation

Meristematic cells are found in growing regions. Apical meristem increases length, lateral meristem increases girth, and intercalary meristem helps regrowth near nodes or leaf bases, especially in grasses.

How to write this in exams

  1. 1

    Start with the exact idea

    Meristematic tissue is plant tissue made of actively dividing cells that help the plant grow.

  2. 2

    Then show how to use it

    Read the location first, identify the growth type, then name the meristem and state its function in one sentence.

  3. 3

    Add one concrete example

    The root tip has apical meristem, which helps roots grow deeper into the soil.

  4. 4

    Avoid this incomplete answer

    Writing 'apical meristem increases thickness' is wrong because apical meristem is mainly for lengthwise growth at tips.

Definition

Meristematic tissue is plant tissue made of actively dividing cells that help the plant grow.

Example

The root tip has apical meristem, which helps roots grow deeper into the soil.

Rule to remember

Growth rule: apical meristem increases length, lateral meristem increases girth, and intercalary meristem supports growth at nodes or leaf bases.

Memory hook

Tip means length; side means thickness; node means regrowth.

Examples and method

Worked example

If grass grows again after cutting, intercalary meristem near the base of leaves helps produce new cells for regrowth.

Method to apply

Read the location first, identify the growth type, then name the meristem and state its function in one sentence.

Diagram support

Draw a shoot and root tip, label apical meristem at tips, lateral meristem along sides of stem, and intercalary meristem near nodes.

How CBSE asks it

Questions often ask to identify the type of meristem from its location or to match apical, lateral, and intercalary with their functions.

Avoid common mistakes

Common confusion

Students often write that all meristems increase only height, but lateral meristem increases thickness.

Common wrong answer

Writing 'apical meristem increases thickness' is wrong because apical meristem is mainly for lengthwise growth at tips.

Exam tip

Always mention location with function: apical at tips, lateral at sides, intercalary near nodes or leaf base.

Quick check

How does apical meristem help a plant?

Apical meristem helps a plant grow in length because its actively dividing cells are present at the tips of roots and shoots.

Answer writing and exam use

1-mark answer

Meristematic tissue is plant tissue made of actively dividing cells that help the plant grow.

2-mark answer

Meristematic tissue is plant tissue made of actively dividing cells that help the plant grow. Growth rule: apical meristem increases length, lateral meristem increases girth, and intercalary meristem supports growth at nodes or leaf bases. The root tip has apical meristem, which helps roots grow deeper into the soil.

3-mark answer

Meristematic cells are found in growing regions. Apical meristem increases length, lateral meristem increases girth, and intercalary meristem helps regrowth near nodes or leaf bases, especially in grasses. Growth rule: apical meristem increases length, lateral meristem increases girth, and intercalary meristem supports growth at nodes or leaf bases. If grass grows again after cutting, intercalary meristem near the base of leaves helps produce new cells for regrowth. Questions often ask to identify the type of meristem from its location or to match apical, lateral, and intercalary with their functions. Writing 'apical meristem increases thickness' is wrong because apical meristem is mainly for lengthwise growth at tips.
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