Chapter 5 Flashcards
Chlorophyll
Photosynthetic pigment found in chloroplasts (surface of thylakoid disks)
Capture solar energy and convert to chemical energy (sugar)
Ultimate source of energy
Sunlight
Why are there so many thylakoid disks?
SURFACE AREA
Stroma
Gel like substance in chloroplasts
Chlorophyll a and b absorb and reflect what colours?
Absorb red and blue and reflect green
First law of thermodynamics
Energy cannot be created or destroyed (energy in=energy out)
Second law of thermodynamics
All conversions of energy produce waste heat
What type of reactions create ATP?
Exergonic
Release energy and use process of phosphorylation (adding phosphate)
Oxidation
LEO
Lose electron oxidized
Energy is released (ectothermic)
Reduction
GER
gained electron reduced
Energy is gained (endothermic)
Light dependent reactions
Light converted to chemical energy
Located on thylakoid membrane
Generates two high energy compounds (ATP, NADPH)
Light independent reaction
Chemical energy converted to glucose
Located in stroma
Calvin cycle
Use ATP and NADPH to reduce carbon dioxide to make glucose and then be conveyed to starch for storage
Chemiosmosis
Electron transport chain
Production of ATP
Movement of electrons and ions across thylakoid membrane, responsible for transferring the energy into molecules of ATP
What is PGAL used to make?
Glucose and more RuBP.
Order of cell resp.
Glycolysis, Krebs cycle prep, Krebs cycle, electron transport chain
