2, 4-7 Although deep intramuscular injection into a large muscle is the preferred parenteral route of administration, promethazineâs product labeling states that it may be given by slow IV push, which is the typical method of administration in most hospitals.
Quick Answer. Plants produce oxygen as a byproduct of photosynthesis, the process that plants and other organisms use to create usable energy. Photosynthesis consists of carbon dioxide and water reacting in the presence of energy from sunlight, which produces glucose and oxygen.
Dissolved-oxygen gas is released as a by-product. In aquatic environments, free-floating microscopic plants known as algae, and larger submersed plants (macrophytes) , release oxygen directly into the water where it is used by animals and other organisms, including the plants themselves.xygen from the Atmosphere. In addition to plant-generated oxygen, the earthâs atmospheric pressure is constantly pushing tiny molecules of dissolved-oxygen gas into the surface waters of our lakes, ponds, oceans, and swimming pools â even the glass of water on your kitchen counter. The process is known as diffusion.