Plants

Multicellular Autotrophs Photosynthetic organisms Kingdom Plantae

Roles of Plants in the Environment Photosynthesis Nitrogen fixation Producers in food webs

Photosynthesis Process by which plants make energy for themselves – Happens in chloroplast of cell Chlorophyll- pigment found in chloroplast Take in carbon dioxide from the atmosphere Release oxygen

Nitrogen Fixation Bacteria on roots of plant change nitrogen in the air into a useable form for other organisms – Most organisms cannot use atmospheric nitrogen

Producers Plants are producers in a food web- they produce food for the consumers Basis of food webs and chains All consumers rely on producers Producers are the limiting factor to how large a population of consumers can get