Cellular respiration is the consumption of oxygen by a cell within a living organism.<span> In plant seeds, the cellular respiration does not occur until the seed has absorbed moisture and released stored starches that can then be metabolized into energy for the purpose of growth</span>
<span>A. free radical
</span>A substance continually produced in our cells that, over time, may cause damage to DNA and other important cell structures is known as a free radical.
NOT:
B. functional food
<span>C. direct additive </span>
<span>D. indirect additive</span>
