MRSC 100 Exam 4 .pdf - MRSC EXAM 4 Notes Photosynthesis...

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MRSC EXAM 4 Notes Photosynthesis - Water - Light - CO2 - Nutrients Limiting factors → Light and nutrients - Phosphate and nitrates Chemosynthesis - Carbon Dioxide - Hydrogen Sulfide - Energy from breaking of chemical bonds Phytoplankton - Plant like plankton - Femtoplankton - Microscopic - Bacteria → lots of nutrients but locked away - Viruses attack bacteria - Invading - Exploding Microbial Loop - SIde food web - Responsible for primary production Phytoplankton - Autotrophs - Diatoms (glass shells) - Dinoflagellates (cellulose shell) - COccolithophores ( Calcium plates) - Produce during the day and consume during the night Diatoms - Made out of silica - Glass - Protection and photosynthesis transparent for photosynthesis - Con = heavy worry about sinking; sink = no light = death - Store energy as oil - Have appendages to increase surface area sink less - Responsible for oil reserves Dinoflagellates - Have 2 flagella - Red tide - Harmful algae bloom - Toxin - Surface bioluminescence Coccolithophores - Calcium carbonate - Smaller
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- Tropical - Reach high number - can be seen from space - White high albedo - Deep water - Acidic Temperate latitude - Phyto make up 90 percent of food Algae - Protista kingdom - Plants use veins vascular system to move nutrients - Algae does not have veins - Holdfast - Gas bladders Chlorophyta - Green Phaeophyta - Brown Rhodophyta - Red Vascular Plants - Seagrass - Habitat - Cell Walls - Food source - Tree - Tropical - Adapted - Food/Habitat - Chemosynthesis - Breaking of chemical bonds - Hot spots - Mid ridges - Bacteria Archae Bottom foodweb to top Multiple trophic levels Trophic cascade MARINE ORGANISMS Porifera - Sponges - “Pore bearing” - Multicellular - Don't have true tissue, cells relatively independent - Symmetry: asymmetric “ no symmetry” - Lot of pores for filter feeding - Can even eat bacteria - take in small things
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- Very few things eat sponges they have toxins in them = colorful = bad texture spicules shards of glass (silica and calcium) Cnidaria - Jelly fish - No bones - Can sting - Nemedocepts - Radial symmetry: pie - Can Detect prey/environment/predators from everywhere all sides - Apola upside down - Medusa form - Vast majority have toxins - Some have less toxins than others because adaption of prey and predators - Moon jelly vs the box jelly -
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