Cell Growth and Differentiation
Ever wondered why a blown-up balloon isn't actually "growing"? Growth means a permanent increase in size, not just temporary expansion. Real growth happens when living things create new cells and increase their actual body mass over time.
Percentile charts are brilliant tools that doctors use to track whether children are developing normally. If a baby's weight drops by two or more percentile categories during their first year, it signals that proper growth isn't happening and medical attention might be needed.
The magic behind all growth is mitosis - the process where cells divide to create identical copies of themselves. This happens whenever your body needs new diploid cells for three key reasons: growth (getting bigger), repair (fixing damage), and asexual reproduction (creating offspring without a partner).
After cells divide through mitosis, something amazing happens - they can differentiate into specialised cells with specific jobs. Think of it like students choosing different subjects to specialise in after learning the basics.
Remember: Mitosis creates identical cells, but differentiation makes them unique and specialised for different functions in your body.
