Mitochondrion structure. Mitochondria are the energy factories of the cells. The energy currency for the work that animals must do is the energy-rich molecule adenosine triphosphate (ATP).
There are many different variations of pink, from a pale blush to a gentle medium pink to a vibrant pink, each having its own meaning and implication. The palest pink roses are a sign of gentleness, joy and grace. Bridal Pink is a perfect pale pink floribunda rose that is long lasting and offers a spicy scent.
In modern culture, yellow roses apparently represent joy, gladness, freedom and contentment. However, in Islamic folklore the meaning is really quite different. It is believed that the yellow rose is a symbol of deceit, treachery, and adultery. Obviously these are quite different interpretations of the same thing, which show the transitional nature of color symbolism and representation theory.