Question

Improve your learning
1. Who discovered the cell fior die first time?
What procedure did he follow. AS)
2. Name the factors on which shape of the cells depend"? (AST)
3. Distinguish benveen unicellular and multicellular organisms? (CAST)
4. How will you prepare slide without drying quickly! (AST)
5 Deekshith said that we can't see cells with unaided eve" is the statement the
Explain. (ASI)
& Correct the statement and if necessary rewnte. (481)
a Cell wall is essential in plant cells.
bu Nucleus controls cell activity
c. Unicellular organisms perform all life processes like respiration excretiong
and reproduction
d To observe nucleus and organelles clearly staining is not necessary
7. Describe the functions of nucleus AST)
8. Wat is difference between cells in onion peel and cells in sunach2 CAS)
9 Label parts of diagrammes given in page 25. And identify which is planteil amis
is animal cell AS5
10. What questions will you pose to know about diversity in cils ASD
11. If you want to know about unicellular and multi cellular organisms what question
you pose! AS
12. Get some floating slime from a puddle, pick a very small amount of slime and du
a slide. Separate dut one fiber and look at it through the microscope Draw the
of what you observed AS3)
13. Collect different kinds of leaves from your surroundings and alisere the shapes
epidermal cells under microscope. Make a table which contains serial number
the leaf shupe of the lenf share arthe epidermal cells. Do not forget we
findings below the table. AS1)
14. Make sketches of animul and plant cells which you chsene under cose
15. Ameer said "Bigger emion has larger cells when compared to the cells of smaller
Do you agree with his statement on Explain why? (AS)
16. How do you appreciate the fact that animals. human beings and trees are
cells which are very small and we can look at them frough microscuse 56
17. Denk sundplattstandere without cell wall Do you so human​

Answer 1

Answer:

1)Robert Hooke

2)The shape of the cells depends upon the different functions they perform. They may be sperical, rounded, cuboidal, tubular, discoidal or irregular.

3)The unicellular organisms contain a single cell whereas the multicellular organisms contain multiple cells.

4)The sides of the cover glass should be sealed with a thick layer of Vaseline.

Nail polish or glycerin can also be used to seal the cover glass.

Used slides which are indented that can hold more sample.

5)The statement made by Deekshith is true. The limit of human vision is in the order of 100 micron. Cells in the human body are 10 microns. Hence cells cannot be seen with the naked eye but can be seen with the help of microscope.

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