diff. between egg cell and polar cell
Answers
Answer: what is a polar cell and a polar body?
Polar cell may refer to: Polar cells, a constituent of atmospheric circulation. Polar body, a smaller cell by-product of egg formation in some animal species.
What is egg cell?
The egg cell, or ovum (plural ova), is the female reproductive cell (gamete) in oogamous organisms. The egg cell is typically not capable of active movement, and it is much larger (visible to the naked eye) than the motile sperm cells.
Which is bigger?
That is the major reason why egg is so much larger. In addition, egg contains almost all organelles, materials, and nutritions for zygote growth. However, a sperm only contains haploid chromosome and certain mitochondria for movement. This is the second reason why egg is larger than sperm or a polar cell.
Polar cell. The smallest and weakest cells are the Polar cells, which extend from between 60 and 70 degrees north and south, to the poles. Air in these cells sinks over the highest latitudes and flows out towards the lower latitudes at the surface.
How does polar cell formed?
Ferrel cell. Part of the air rising at 60° latitude diverges at high altitude toward the poles and creates the polar cell. The rest moves toward the equator where it collides at 30° latitude with the high-level air of the Hadley cell.
How does a egg cell formed?
The ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur