Tonicity Definition Tonicity refers to the concentration of a solution in comparison to another solution. Concentration refers to the amount of solutes dissolved by a solution. A hypertonic solution has a higher concentration of solutes (less water) than another. Hypotonic solutions have a lower concentration of solutes and more water than other solutions. The concentration … Read more
A haploid cell contains a single set of chromosomes (n), whereas a diploid cell contains two sets (2n). In humans and most other multicellular organisms, the majority of cells are diploid, and only the gametes (egg and sperm cells) are haploid. However, some organisms consist entirely of haploid cells, and may reproduce sexually or asexually. … Read more
Cells are the fundamental units of life from which all other living things are made. They contain all the molecules and structures needed for individual cell survival and the survival of the organism as a whole. Different cells have different subcellular structures, but all eukaryotes contain the same three parts: the nucleus, the cell membrane, … Read more