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.
Key content 1. photosynthesis is a cellular process through which organisms capture light energy from the sun and use it to generate and store energy. 2. cellular respiration releases stored energy in glucose, allowing the organism to function. 3. Light is required for photosynthesis to occur, although parts of photosynthesis can happen in the absence of light. 4. photosynthesis happens in the chloroplasts, which con-tain chlorophyll. 5.