Explain the effect of expressing only S1 on the cells in culture 1. Describe the effect of expressing combinations of protein S and protein R on the survival of the cells in culture 2 AND culture 3.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;