Question

what are identifying feature of parenchyma , collenchyma and sclrenchyma?

Answer 1

Procedure
Step 1: A tender stem of any of the herb is cut into bits of about 3 cm length and placed in water.
Step 2: A piece is hold between the thumb and forefinger in your left hand.
Step 3: A wet blade across the stem is passed in quick motion so as to get a thin, unbroken, circular cross section of the material.
Step 4: The process is repeated to get about fifteen transverse sections of the material.
Step 5: The sections is transferred to a petridish containing water. A thin, transparent section is selected and with a brush transfer it to a drop of water taken on a slide. Three drops of dilute safranin stain solution is added to the section and leave it for about five minutes.
Step 6: The excess stain is blotted. Three drops of dilute glycerine is added on the stained section. A cover slip is placed on it. It is then focused under the low power of microscope and observe the section.
Step 7: The section is focused under high power and observed again. The observations are recorded

Answer 2

hii dear,
ur answer is here,

- parenchyma :-
1)it is mainly found soft part of plant Like root cortex, ground tissue in stem.
2) the cells of parenchyma are turgid that help in maintaining shape and firmness of the plant body.

-collenchyma :-
1) the tissue is made up of living cells that have cellulose, hemicellulose and picten thickening on the corner.
2) cells in collenchyma are compactly arranged without intracellular shapes.

-sclrenchyma :-
1)it is plant tissue providing stiffness and strength.
2)fibers and sclereids are the main type of sclerenchyma.

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