Algae are a very diverse group of predominantly aquatic photosynthetic organisms that account for almost 50% of the photosynthesis that takes place on earth algae have a wide range of antenna pigments to harvest light energy for photosynthesis gi. Photosynthesis and light-absorbing pigments photosynthesis is the process by which light energy is converted to chemical energy whereby carbon dioxide and water are converted into organic molecules the process occurs in almost all algae, and in fact much of what is known about photosynthesis was first discovered by studying the green alga chlorella.
Photosynthetic organisms are capable of generating organic compounds through photosynthesis these organisms include plants, algae, and cyanobacteria. Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight into chemical energy there are two types of photosynthetic processes: oxygenic.
There are a variety of algae species occurring in different habitats in the world such as fresh water, marine, desert sand and snow these photosynthetic organisms are vital since aquatic animals feed on the organic matter they produce algae also take up excess nutrients such as phosphate, ammonia and nitrate, which can intoxicate marine life from the water.
Before plants, algae and phytoplankton used water for photosynthesis, bacteria used h2s and other organic compounds to fix co2 31 early cyanobacteria were the first organism to use water to fix carbon 31. Algae - photosynthesis and light-absorbing pigments: photosynthesis is the process by which light energy is converted to chemical energy whereby carbon dioxide and water are converted into organic molecules the process occurs in almost all algae, and in fact much of what is known about photosynthesis was first discovered by studying the green alga chlorella.
Algae have photosynthetic machinery ultimately derived from cyanobacteria that produce oxygen as a by-product of photosynthesis, unlike other photosynthetic bacteria such as purple and green sulfur bacteria. In plants, algae, and cyanobacteria, photosynthesis releases oxygen this is called oxygenic photosynthesis and is by far the most common type of photosynthesis used by living organisms although there are some differences between oxygenic photosynthesis in plants , algae , and cyanobacteria , the overall process is quite similar in these. Algae, singular alga, members of a group of predominantly aquatic photosynthetic organisms of the kingdom protista algae have many types of life cycles, and they range in size from microscopic micromonas species to giant kelps that reach 60 metres (200 feet) in length.
Most algae are plants and as such will undergo photosynthesis in order to produce atp which is needed for plant growth blue-green algae are not truly algae they are prokaryote cyanobacteria.