點解 mitochondria involved in metabolic activity??
mitochondria 只係release energy， 都無chemcial reaction。
雖然repiration 係metabolic activity, 但係mitochondrion 只係for 「 releasing 」that energy. mitochondrion 都無any chemical reaction
is that mitochondrion needs chemcal reaction to break down something before releasing energy in the mitochondrion cells?
- ShingMingTonyLv 71 十年前最愛解答
mitochondrion is for making and storing ATP(adnine triphosphate), which is a chemical with a high energy bonding.
ATP is formed by ADP(adnine diphosphate) in the following reaction:
ADP + phosphrate + energy(from breaking glucose, lipids, etc) → ATP
When the cell needs energy, ATP is broken down into ADP, phosphrate and release the energy to the cell.
The whole reaction is carried in the mitochondrion.
2010-09-19 10:40:22 補充：
The breaking down of glucose, lipids is also carried out in the mitochondrion