Organisms that can capture energy from sunlight or chemicals and use that energy to produce food are called autotrophs, or primary producers. The process in which autotrophs capture light energy and use it to convert carbon dioxide and water into oxygen and sugars is called photosynthesis.rganisms that can capture energy from sunlight or chemicals and use that energy to produce food are called autotrophs, or primary producers. The process in which autotrophs capture light energy and use it to convert carbon dioxide and water into oxygen and sugars is called photosynthesis.
What to Expect With Rituxan. How Rituxan is given. RituxanÂ® (rituximab) is given as an intravenous (IV) infusion once weekly for 4 weeks. An IV infusion is given to you through a needle that's placed in a vein. Infusion reactions with Rituxan may include fever, chills and shakes, itching, and coughing.
Rituxan (rituximab) is the artificial antibody found to stick to the CD20 antigen on cancerous young pre-B cells and mature B-lymphocytes. Once Rituxan binds to the CD20 on the cancerous cells, there are likely a few mechanisms by which the cancer cells are then destroyed.