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can survive in the absence of oxygen, but will utilize aerobic respiration in the presence of oxygen
Types of organisms based on troph
Photoautotroph, photoheterotroph, chemoheterotroph, chemoautotroph
when a protein falls apart and loses function. this typically occurs at higher temperatures and different pH's
order of electromagnetic spectrum
gamma rays, x-rays, UV rays, visible light, infrared waves, microwaves, radiowaves
electron that is at a higher energy state than normal. any type of energy can do this.
describe the electron/ground state process
electron absorbs light, goes to excited state. when energy is used up, electron goes back to ground state. light is given off again.
what is the purpose of the light reactions?
the purpose of the light reactions is to create energy to use in the next step of photosynthesis.
-second stage of photosynthesis
-occurs within the stroma
-point of Calvin Cycle is carbon fixation
at times of high heat, stomata will close limiting gas exchange. when stomata is closed, the organism has a buildup of O2 and low amounts of CO2.
what will C3 plants do in special cases?
incorporate O2 into the Calvin Cycle, making no food, and using up energy.
Steps of CAM pathway
-during the day, stomata are closed, no gas exchange occurs. (light reactions--day, Calvin Cycle ---night)
-at night, stomata open, plants release O2 and take in CO2.
-CO2 that is taken in at night is incorporated into molecules that are then stored in the central vacuole.
-during the day, when stomata are closed, that carbon is released for use in the Calvin Cycle.
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