Do all animals have the same sized cells?

Question

For example do spiders have the same sized cells as a whale?

Answer 1

Your question is more complicated than you might think. The human body contains dozens and dozens of completely different type of cells and these many cells all have hugely different sizes. To answer your question most simply; there is no direct correlation between an animals size and the size of comparable cell types (a red blood cell in a mouse is not necessarily smaller than a human red blood cell). Even within a species (certain subspecies of talapia) the RBC size varies greatly.

Within humans the ovum is the largest cell at approx 1000 microns while the sperm is the smallest at approx 7 microns in length. As the previous poster noted the chicken egg is scientifically a single cell.

Answer 2

listen to lampoilman and narmadha, they are right
cell size varies within a single organism, you can't make a direct comparison.
perhaps you should rephrase the question, ask if spider germ cells are the same size as whale germ cells

Answer 3

Cells hugely vary in properties, shapes and sizes. Surface-to-volume ratio limits the cell size. The bigger the cell is, the slower nutrients and waste can go in and out of it...which is why nearly all cells are microscopic.

Answer 4

No. For example a human egg cell can only be seen under a microscope, but a chicken egg yolk, which you might have seen on your breakfast plate, is a single cell.

Answer 5

Narmadha and Lampoilman are correct. The only thing is that I believe the largest cell in the human body is the sciatic nerve in your leg - well, its the longest anyway.

And in the male body (since we have no eggs...), the largest volume-wise apparently is the megakaryocyte.

Answer 6

no, even different kinds of cells from same animal are in different size . eg., nerve cells, muscle cells, germ cells are different sizes

Answer 7

no because different cells perform different functions whtch also affect their size. Also sizes of unicellular organisms differs eg bacilli and cocci shape bacteria, also the size of virus differ from other microorganisms.

Answer 8

They would change by mass, one would think.

As in, if you compared a heart cell from a human, to a heart cell of a cat, the human's heart cell should be that much larger because of their bigger mass. But there would have to be an upper limit to the size possibility of a cell, because otherwise gravity would have too much of an effect, resulting in the quick death of the cell.

Answer 9

no of course not