Diploid cells are the sex cells in organisms that sexually reproduce, and sex cells are also known as gametes. Haploid cells are ALL cells other than sex cells, such as brain cells, muscle cells etc....
Diploid and haploid are terms used to describe how many chromosomes are in a cell. Haploid or "n" represents half and Diploid or "2n" represents 2 times the n amount. For examples, in human haploid...
If I'm not mistaken, Haploid Cells have only 23 chromosomes that are needed for a human. They're the sex cells that meet and form a zygote. Therefore, a diploid cell is a full cell of 46 chromosomes,...