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.
Chloroplasts are found in mesophyll cells (in the leaves) of green plants. Guard cells also contain chloroplasts. They are not normally found in the cells of roots! Their function is to produce glucose from carbon dioxide and water. To do this they need light energy. You should already know this. You should also know that they contain a green chemical called chlorophyll.