ETC
Trending Questions
Which statement describes the functioning of photosystem II?
The P680 chlorophyll donates a pair of protons to NADPH, which is thus converted to NADP+
The excitation is passed along to a molecule of P700 chlorophyll in the photosynthetic unit.
Light energy excites electrons in the electron transport chain in a photosynthetic unit.
The electron vacancies in P680 are filled by electrons derived from water.
- Silver
- Iron
- Copper
- Zinc
What is the role of the electron transport system in the light-dependent pathway of photosynthesis
production of carbon dioxide and water molecules
production of NADPH molecules
production of oxygen molecules
production of glucose molecules
Light-driven electron transport in the chloroplast pumps H+ into the intermembrane space between the outer and inner membranes.
True
False
In the above schematic diagram, what is plastocyanin?
- a
- b
- c
- d
- RuBisCO
- Ubiquinone
- Cytochrome
- Plastocyanin
- Lipid
- Metallo flavoprotein
- Fe containing porphyrin pigment
- Glycoprotein
I. P+680 is the P680 molecule that lost its electron. It has the maximum reduction potential.
II. Pā680 is the excited P680 molecule after absorption of the light energy. It has the lowest reduction potential
III. Final electron acceptor of PS I is Fe-S centre
IV. Flow of high energy electron in the electron transport chain creates a pH difference between the chloroplast stroma and thylakoid lumen
- Only I
- I and IV
- III and IV
- II, III and IV