The egg cell not only has half the chromosomes but it also contains all the food for the individual until the egg can either hatch or develop a placenta. The egg contains all the equipment that enables the cell to function. It is as if the sperm carried half the blueprints and the egg carried the other half of the blueprints. Then the egg carried the workers, the bulldozers, the steel, and the rest of the building supplies, the electrical equipment, the motors, etc., required to build the project and make it run.
the egg is larger than the sperm cell
the egg is larger than the sperm cell
Egg cells are the biggest: you could only fit one on the head of a pin. But I'm not sure if a sperm cell is bigger than a red blood cell or vice versa.
The size of egg is larger than sperm because the the sperm enters inside the egg and egg has to accommodate the sperm. And egg contains fats and nutrients in order to feed zygote in case of pregnancy.
A sperm and an egg.
In both an egg cell and a sperm cell, there are 23 chromosomes. The sperm and egg unite (fertilize) to create a zygote (fertilized egg). A zygote has 46 chromosomes. This is important because if a sperm and/or an egg cell have 1 more or 1 less chromosome, a mutation could form in the zygote.
The uniting is known as fertilisation of the egg by the sperm.
An egg cell contains more cytoplasm and needed chemicals than a sperm cell. This is because an egg cell is larger and contains all the necessary organelles and nutrients to support early development after fertilization. Sperm cells are specialized for motility and delivering genetic material to the egg.
FERTILIZATION
The egg cell is 85,000 times bigger than the sperm
Twenty-three chromosomes are in a cell that is formed from a sperm and egg cell.
egg by far