OCS 1005 Chapter : Biological Oceanography
15 Mar 2019
School
Department
Course
Professor
Document Summary
Chlorophyll pigment- transforms light energy into chemical bond energy. (produce food molecules- carbohydrates) Carbohydrates- used by plants for chemical synthesis, growth and reproduction. 6co2 + 6h2o nutrients c6h12o6 + o2 sunlight glucose plants carbohydrates. Glucose- the immediate organic material produced from inorganic substances: larger molecules formed from smaller molecules, o2- by product of reaction. Photosynthesis- main method of primary production (or biomass production) in the ocean. Chemosynthesis- (no sunlight required) bacteria releases energy from hydrogen and sulfur containing compounds to form carbohydrates (h2s, 6co2 + 6o2 + 24 h2s --- 1c6h12o6 + 24s+ 18h2o. C6h12o6 + 6o2 --- 6co2 + 6h2o + chemical energy (animals need: large molecules (carbs) broken down, 2) energy liberated- used for metabolism. All organisms (plants & animals) carry out respiration. Feeding (trophic) relationships: primary producers or autotrophs- make own food, photosynthetic and chemosynthetic organisms, plants. 2)heterotrophs- organisms that are unable to make own food: must consume other organisms for food supply, animals.
