Chapter 5 - Energy Flashcards
Tools
Predation efficiency, social learning, and energetic benefit
Energy Acquisition
Physiological maintenance, growth, and reproduction
Radiant Energy
Light from the sun
Chemical Energy
Consumption, energy transfer
Autotrophs
Energy from sunlight
Heterotrophs
Consumers
Green Sea Slug
Symbiotic photosnthesis
Chemosynthesis
Inorganic to carbohydrates, bacteria, nutrient cycle
Carbon Fixation
Energy from ATP/NADH to take up carbon from CO2 to synthesize carbohydrates and organics
Calvin Cycle
Carbon fixation, photosynthetic
Sulfur Bacteria
Generate energy from H2S leaving behind element S
Van Helmont
Tested plant growth factors, how plants gain weight, proposed through the soil
Photosynthesis
Two steps, energy harvest and carbon fixation
Light Reactions
Splitting water, provides electrons to generate ATP/NADPH
Carbon Reactions
Synthesis of sugars
Chlorophyll
Sunlight harvesting, green appearance, absorbs red/blue light
Photons
Units of light, pigment absorbed
Carotenoids
Absorbs blue/green, reflect red, yellow, and orange
Rubisco
The key enzyme of Calvin Cycle, most abundant enzyme, catalyzes uptake of CO2, PGA synthesis
Light Reaction Curve
Relationship between light levels and photosynthetic rate
Light Compensation Point
CO2 uptake is balanced by CO2 loss
Bjorkman
Acclimatization to different light levels involves a shift in light saturation point, altered density of light pigments
Chlorophyll f
Absorbds light in the near-infrared region, beyond red wavelength, shallow waters, cyanobacteria adaptation
High Nitrogen
High Photsynthesis