These medical condition or symptom topics may be relevant to medical information for Orchialgia: 1  Pain (6458 causes) 2  Pain symptoms (6458 causes) 3  Pain disorder.  Pain 1  syndrome. Testis.  Testis symptoms (247 1  causes) Testis disorder.  SYN. Orchalgia.
The innermost matrix of chloroplasts, called the stroma, contains metabolic enzymes and multiple copies of the chloroplast genome. Chloroplasts also have a third internal membrane called the thylakoid membrane, which is extensively folded and appears as stacks of flattened disks in electron micrographs.
A chloroplast is a structure in a plant cell that contains large amounts of chlorophyll. Chloroplasts play a key role in the process of photosynthesis and convert light energy from the sun into chemical energy (carbohydrates) for the plant. Although not all cells in a plant contain chloroplasts, they are contained in all green parts of a plant. The chlorophyll found inside of the chloroplast is what gives a plant its green color.