The total number of new cases of Crohnâs disease diagnosed each year (incidence) was 10.7 per 100,000 people, or approximately 33,000 new cases per year. The total number of new cases of ulcerative colitis diagnosed each year was 12.2 per 100,000 people, or approxi-mately 38,000 new cases per year (Figure 3).
The most important part of photosynthesis occurs in the chloroplasts. These small photosynthesis factories buried within the leaves house chlorophyll, a green pigment secreted in the chloroplast membranes. Chlorophyll absorbs a wide range of the spectrum of sunlight, giving the plant as much energy as it can for its reactions.
Report Abuse. Mainly photosynthesis takes place in the palasede mesophyly. This is becouse chloroplasts are mainly concentrated in the palased mesophyl. Morover photosynthesis takes in other cells of the leaf eg, spongy mesophyl, and guard cells.hotosynthesis takes place in chloroplasts...which contain chlorophyll pigment,which is necessary for photosynthesis.misophyll cells of the leaf contain maximum number of chloroplasts...it is the main site of photosynthesis. deadmau5 Â· 9 years ago.