The average amount of sleep needed changes over our lifetime, especially during childhood and adolescence. Although there are averages, there will be individuals who fall both above and below these needs, including the following groups of people: Infants (3-11 months) need 14-15 hours.
Transcript of things in real life that works like cells. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression â the nucleus is, therefore, the control center of the cell.
All cells (except red blood cells which lack a cell nucleus and most organelles to accommodate maximum space for hemoglobin) possess DNA, the hereditary material of genes, and RNA, containing the information necessary to build various proteins such as enzymes, the cell's primary machinery.