Exam 2 Flashcards
Photorespiration
A series of reactions in which O2 is attached to RuBP, eventually resulting in the release CO2 from the plant
Rubisco
An acronym for the enzyme ribulose-1,5 - bisphosphate carboxylase/oxygenase
Light Reactions
Light Energy Driven
Water provides electrons and protons
Enery stored as ATP and NADPH
Dark Reactions
CO2 converted to carbohydrates
ATP and NADPH provides energy
Chloroplast Structure
Outer Membranes
Chloroplast Structure
Granum
Chloroplast Structure
Stroma
Chloroplast Structure
Inner Membrane System
Sucrose
A soluble disaccharide containing a glucose and a fructose residue
Photosystem II (PSII)
Light Harvesting Complex
Reaction Center → P680
Water Splitting or Oxygen Evolving Complex
Main Products of PSII Reaction
H2O & O2
Photosystem I (PSI)
Light Harvesting Complex
Reaction Center → P700
Accepts electrons from PC
Electrons passed to ferredoxin (Fd)
Electrons in Fd donated to NADP+ at the Ferredoxin NADP Reductase Complex to produce NADPH
Main Products of PSI Reaction
NADPH
Main Substrate of PSII Reaction
H2O
Main Product of Calvin Cycle
Glucose
Calvin Cycle Occurs
In the Stroma
Main Product of Cyclic Phosphorylation
ATP
Mitchondria Structure
Inner Membrane
Mitochondria Structure
Outer Membrane
Mitochondria Structure
Cristae
Mitochondria Structure
Matrix
3 Phases in TCA Cycle
Condensation
Oxidation
Regeneration
Products of TCA Cycle
FADH
NADH
ATP
CO2
Two Major Processes that Contribute to Plant Growth
Growth
Increased Cell Number
Increased Size
- Volume
- Weight
Two Major Processes that Contribute to Plant Growth
Differentiation
- Differences in Cell Structure and/or Function
- Maturity
- Reversibility/Totipotency
In a Pollen Tube
There are one tube nucleus and two sperm nuclei
