is chlorophyll needed for cellular respiratin

Answer 1

I assume you are referring to plants only.

Since this is not my area of expertise, I searched Google under the key words "cellular respiration chlorophyll" to get these possible sources:

http://waynesword.palomar.edu/photsyn1.htm
http://www.globalchange.umich.edu/globalchange1/current/lectures/kling/energyflow/PSN_primer.html
http://www.buzzle.com/articles/photosynthesis-and-cellular-respiration.html

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

I hope this helps. Thanks for asking.