Can cells be seen by naked eye?
Most of the cells cannot be seen through our naked eyes, we need a magnifying glass to see them
But few cells can be seen through our naked eyes
Example
Egg of a Hen is a Cell, It can be seen through naked eyes
What is the size of the cell
Cells are usually very small (microscopic in nature) which means they cannot be seen through the naked eyes
Size of the cell does not relate to the size of the body
It is related to the function it performs
|
Name of Cell |
Size (Length) |
|
Bacteria Mycoplasma (Smallest cell) |
0.0001 mm |
|
Red blood Cell |
0.009 mm |
|
Liver Cell |
0.02 |
|
Human egg |
0.1 mm |
|
Humming bird egg |
13 mm |
|
Hen egg |
60 mm |
|
Ostrich egg (Biggest cell) |
170mm |
1 micrometer = 1/1000 mm
1 mm = 1/1000 m
Do larger organisms have bigger cells?
No, size of the cell has no relation with the size of the organism
It is not necessary that cells in elephant will be bigger than cells in rat
