Answer:
A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
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chloroplast turns light energy into chemical energy
The correct option is B.
Mitochondria is one of the membrane bound organelles that is found in living cells. It is called the power house of the cell because it is responsible for providing energy for the life sustaining activities of the cells. Mitochondria possesses an outer membrane and a highly convoluted inner membranes.The convoluted portion of the mitochondria provides a large surface area for the occurrence of biochemical reactions<span />
A naturally occurring sold inorganic substance with a definite chemical composition and a crystal structure is a mineral.