This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water â hence the name photosynthesis, from the Greek Ïá¿¶Ï, phÅs, light, and ÏÏÎ½Î¸ÎµÏÎ¹Ï, synthesis, putting together.
The human body's own cartilage is still the best material for lining knee joints. This drives efforts to develop ways of using a person's own cells to grow, or re-grow cartilage tissue to replace missing or damaged cartilage.
A babyâs kneecap is cartilage. As the baby grows, the cartilage slowly changes to bone. For girls, theyâll have a normal kneecap of bone by around age three, assuming normal calcium intake. Boysâ kneecaps donât turn fully from cartilage to bone until around age 5.