Like organs in an organism, each organelle has a specific function in a cell. All of the organelles work together to carry out the functions of the cell as a whole, just as organs do to an organism. Each organelle contributes to the function of the cell as a whole, and they are essential for the cell's survival.
( NOT MY WORDS JUST WANTING TO HELP :) )
To genetically manipulate organisms
Well, originally, catalyze means cause or accelaration. so the only answer closest to this would be C.to increase the rate of a reaction.
hope this helps.
The answer is true light is one of the forms of electromagnetic energy.