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.
Chloroplasts -- the kitchens of plant cells -- are the key organelles for the nourishment of plants and other autotrophs. They are also the sites for nitrogen fixation, the reactions of which are interconnected with the processes of photosynthesis and photorespiration, and play a protective role in plant cells.hotosynthetic reactions occur in the grana and stroma of chloroplasts. Grana. Thylakoids of grana are the sites for light reactions of photosynthesis. The thylakoid membrane contains light harvesting complexes called photosystem I (PS I) and photosystem II (PS II) .