University:
York University
Course:
SC/BIOL 2021 | Cell Biology
Academic year:

2019
Views:

296

Pages:

2
Author:

Nick T.

General Information Marine water: 70%, salinity 33-40 ppt Freshwater: <1%, salinity 10-100 ppm Sea: Portuguese term Bay: Protestant term Hurricane: Aztec god of wind and rain, also known as typhoon or monsoon Average ocean depth: 3 miles Marianas trench: 7 miles deep, Challenger depth Water clarity: August-September SPI clarity 15 ft Red light: Absorbed first in the water column Aphotic zone: No light Algae Algae: Plural, Alga: Singular Macro algae: Large Micro algae: Small Unicellular Multicellular Colonial Independent Attached benthic Free-floating pelagic Algae as Primary Producers Algae provide food for the ocean. When algae die, they become detritus. 95% of oxygen comes from the ocean. Acidification: Too much CO₂ in the ocean prevents aquatic plants from absorbing it, hindering the formation of calcium carbonate for organisms. Estuaries and Bays Estuaries and bays are strong producers. Seagrasses in these areas provide a nursery for baby shrimp, crabs, fish, and other marine life. Classification Haploid + haploid = diploid Haploid spores Archaea: Always changing, lacks a cell wall, but did undergo photosynthesis. Had chloroplasts and a flagella. Plant or animal? Monera: Prokaryotes Eubacteria Protista: Unicellular Fungi: Multicellular fungi Plantae: Multicellular plants Animalia: Multicellular animals Blue-Green Algae Gram (-): Double cell wall, thin cell wall between Gram (+): Single, thick cell wall Blue-green algae: Nitrogen fixation, provide nitrogen Bacteria: Rods or cocchi Protista Either phytoplankton or zooplankton Chlorophyll A: Include w/ Marine Environments Only few angiosperms will be in saltwater environments. Lichens: Fungi + algae in symbiotic relationship. B/G algae would stay in soil as spores. Compensation depth: Where respiration is matched by photosynthesis.