Answer:

AIM

To identify parenchyma and sclerenchyma tissues in plants, from prepared slides and to draw their labelled diagrams.

MATERIALS REQUIRED

Prepared slides of parenchyma, collenchyma and sclerenchyma, compound microscope.

You can also Download tissues class 9 notes PDF to HELP you to revise complete Syllabus and score more marks in your examinations.

THEORY

A group of cells that are similar in structure and WORK together to achieve a PARTICULAR function forms a tissue. The main types of plant tissues include- PROCEDURE

Observe the prepared slides of all the plant tissues one by one.

First focus the slide at low power and then observe it at high power.

Study the characters and draw the diagrams in your notebook.

OBSERVATIONS

IDENTIFYING FEATURES

I. Parenchyma

Cells of Parenchyma tissue are isodiametric.

Intercellular spaces are present in between the cells.

Parenchymatous cells POSSESS large CENTRAL vacuole and peripheral cytoplasm with a nucleus.

These are generally present in the soft parts of plants like leaves, roots, flowers, etc.

The important functions of parenchymatous cells are storage, photosynthesis, etc.