Difference between revisions of "Dermal tissue"
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==Process (How to do the activity)== | ==Process (How to do the activity)== | ||
*Take a nerium leaf. | *Take a nerium leaf. | ||
| − | * | + | *Break the leaf by stretching it so that a peel of skin from the lower epidermis projects out.Remove 2 to 3 pieces of peel and place it in a glass dish with water. |
| − | *Select a very fine | + | *Select a very fine peel and place it on a glass slide. |
| − | *Add 1 to 2 drops of methylene blue on the section and | + | *Add 1 to 2 drops of methylene blue on the section and wash the extra stain with water. |
| − | * | + | *Add 1 to 2 drops of glycerine and cover the section with a cover slip gently and remove the extra stain with a blotting paper. |
*Mount the slide on the microscope. | *Mount the slide on the microscope. | ||
==Developmental Questions (What discussion questions)== | ==Developmental Questions (What discussion questions)== | ||
| + | #Did you see some specialised structures in the slide? | ||
| + | #What are they called? | ||
| + | #what is the structure of stomata? | ||
==Evaluation (Questions for assessment of the child)== | ==Evaluation (Questions for assessment of the child)== | ||
| + | #What is the function of stomata? | ||
| + | #What is the function of guard cells of stomata? | ||
| + | |||
==Question Corner== | ==Question Corner== | ||
'''To link back to the topic page''' | '''To link back to the topic page''' | ||
| − | [http://karnatakaeducation.org.in/KOER/en/index.php/''' | + | [http://karnatakaeducation.org.in/KOER/en/index.php/Organisation_of_cells_plant_tissues'''Plant tissues''' Back] |
Latest revision as of 10:31, 27 August 2014
Activity No # 1 - Observation of dermal tissue
Estimated Time
30 minutes
Materials/ Resources needed
A Nerium leaf, a microscope, glass slide, cover slip, glass dish, methylene blue, glycerine, blotting paper etc.
Prerequisites/Instructions, if any
Peel out lower skin of nerium leaf and observe it under microscope.Observe few specialised structures and draw the diagram.
Multimedia resources
Website interactives/ links/ simulations
Process (How to do the activity)
- Take a nerium leaf.
- Break the leaf by stretching it so that a peel of skin from the lower epidermis projects out.Remove 2 to 3 pieces of peel and place it in a glass dish with water.
- Select a very fine peel and place it on a glass slide.
- Add 1 to 2 drops of methylene blue on the section and wash the extra stain with water.
- Add 1 to 2 drops of glycerine and cover the section with a cover slip gently and remove the extra stain with a blotting paper.
- Mount the slide on the microscope.
Developmental Questions (What discussion questions)
- Did you see some specialised structures in the slide?
- What are they called?
- what is the structure of stomata?
Evaluation (Questions for assessment of the child)
- What is the function of stomata?
- What is the function of guard cells of stomata?
Question Corner
To link back to the topic page Plant tissues Back