Sometimes, unusual urine odor indicates a medical condition or disease, such as: 1  Bladder infection. 2  Cystitis (bladder inflammation) 3  Dehydration. Diabetic ketoacidosis (high levels of blood acids called ketones)  Gastrointestinal-bladder fistula (abnormal connection between the intestines and bladder)
Photosynthesis occurs in eukaryotic cell structures called chloroplasts. A chloroplast is a type of plant cell organelle known as a plastid. Plastids assist in storing and harvesting needed substances for energy production. A chloroplast contains a green pigment called chlorophyll, which absorbs light energy for photosynthesis.
The chloroplast in photosynthesis. The chloroplasts [chloroplasts: Microscopic structures containing chlorophyl found in green plant cells where photosynthesis takes place.] are the organelles where the two stages of photosynthesis take place.The structure of the chloroplast.The granum (plural grana) is a stack of membranes [membrane: a very thin layer of tissue] which contains the photosynthetic pigments; this is where the light dependent stage takes place: 1  The pigments are chemicals which absorb light energy and convert it to chemical energy.he structure of the chloroplast. The granum (plural grana) is a stack of membranes [membrane: a very thin layer of tissue] which contains the photosynthetic pigments; this is where the light dependent stage takes place: 1  The pigments are chemicals which absorb light energy and convert it to chemical energy.