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
Carboxylase
CO2 up, sugar synthesis, O2 release
Oxygenase
O2 up, carbon breakdown, release CO2
Photorespiration
Net energy loss, and oxygenase, increase rapidly at high temperatures, and play a role in protection from damage at high light
C4
Pathway reduces photorespiration, evolved independently, grass families, high CO2 to Calvin, lower O2 uptake, spatial separation of leaf region, increased efficiency of carbon fixation
Bundle Sheath
High CO2 concentration, site of Calvin cycle
CAM
Separates steps, open stomata at night, increased acidity in plant tissue during the night, succulent, thick/fleshy
Detritus
Dead organic matter
Fiber
Cellulose, plant cell wall
Bioremediation
Microorganisms used in environmental waste management to clean up toxins
Insect Mouthparts
Paired appendages, razors, sponging
Bird Bills
flat, hooked, optimized food acquisition, feeding efficiency
Insect Flight
High energy demand, fat storage for flight initiation
Gizzards
Small rocks for grinding food
Coprophagy
Reingest feces
The Rumen
Bacteria facilitate the chemical breakdown of cellulose, fermintation chamber
Rumination
cud chewing, regurgitation