Science / Marine Biology / Photosynthesis: A chemical process whereby plants and algae use a sun's energy to make sugars (organic compounds) from carbon dioxide and water (inorganic compounds). See also autotroph, chemosynthesis.

Primary Production

Science / Marine Biology / Primary Production: The production of living matter by photosynthesizing organisms or by chemosynthesizing organisms. Usually expressed as grams of carbon per square meter per year MORE

Auxotrophic Algae

Science / Marine Biology / Auxotrophic Algae: Algae requiring a few organically derived substances, such as vitamins, along with dissolved inorganic nutrients for photosynthesis. MORE


Science / Marine Biology / Chemosynthesis: Primary production of organic matter, using various substances instead of light as an energy source; confined to a few groups of microorganisms MORE

Photosynthetic Quotient

Science / Marine Biology / Photosynthetic Quotient: In photosynthesis, the moles of oxygen produced, divided by the moles of carbon dioxide assimilated MORE


Science / Biology / Phloem: Tissue in the vascular system of plants that moves dissolved sugars and other products of photosynthesis from the leaves to other regions of the plant. Phloem tissue consists of cells called sieve tub MORE


Science / Biology / Plantae: The plant kingdom; nonmobile, autotrophic, multicellular eukaryotes. Kingdom of the plants, autotrophic eukaryotes with cellulose in their cell walls and starch as a carbohydrate storage product, with MORE