1. Home
  2. Flashcards
  3. Preview

Photosynthesis

  1. What are electron transport systems?
    Organised series of enzymes and proteins in the chloroplast membranes
  2. How do electron transport systems phosphorylate?
    • Electron transport systems are organised series of enzymes and proteins in the chloroplast membranes.
    • One component transfers electrons to another in an orderly sequence.
    • Some energy is released at each transfer
    • Much energy is captured by using it to make ATP from ADP and a phosphate group- process called phosphorylation. (The manufacture of ATP)
  3. What is photophosphorylation ?
    The manufacture of ATP using light energy
  4. Where are electron transport systems found?
    In chloroplast membranes
  5. What is ADP?
    • Adenosine Diphosphate
    • (Energy poor molecule)
    • ADP + P = ATP
  6. What is ATP?
    • Adenosine Triphosphate
    • (Energy rich molecule)

    • Adenosine-ribose --sugar
    • I
    • Base
  7. What is photolysis?
    • The splitting of water using light.
    • H2O to H, O and electrons
  8. What does H2O split into?
    • Hydrogen
    • Oxygen
    • Electrons
  9. What is the aqueous fluid of the chloroplast where dark phase occurs?
    Stroma
  10. What is the inside of a thylakoid called?
    Lumen
  11. What is a stack of thylakoids called?
    Granum
  12. What do plants use to produce ATP?
    Light
  13. Explain cyclic photophosphorylation. (5)
    • Light is absorbed by chlorophyll and electrons in the chlorophyll molecule are excited.
    • They are picked up by a series of carriers in the electron transport system where ATP is made.
    • These electrons return to the chlorophyll
    • As they flow their energy is given up to ADP (along with phosphate) to form ATP.
    • So light energy is changed to chemical energy.
Author
jacquelineglynn
ID
363390
Card Set
Photosynthesis
Description
Questions
Updated

  1. Home
  2. Flashcards
  3. Preview