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.
As the name implies, chloroplast contains photosynthetic pigment called chlorophyll. Because of the presence of this pigment, chloroplasts can utilize light to synthesize ATP and sugars. Thus, the organisms with chloroplasts can produce their own food. Chloroplasts have two membranes, similar to mitochondria. In addition to these membranes, they have closed compartments called grana. Grana are found inside the inner membrane, and each granum is made up of few to several dish shaped structures called thylakoids. The chlorophyll is found on these thylakoids.