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.
Features. You can find chlorophyll inside cellular structures called chloroplasts, the tiny pill-shaped organelles responsible for photosynthesis. All green parts of the plant contain chloroplasts. Within the chloroplast, stacks of round structures called thylakoids contain the chlorophyll. Within these thylakoids, the process of photosynthesis begins.