ATP synthesis Reason (R): Oxygen evolving complex of PS I located on thylakoid membrane facing Stroma, releases H ions a. Both Assertion and Reason are True. b. Assertion is True and Reason is False.
c. Reason is True and Assertion is False. d. Both Assertion and Reason are False.
. Which chlorophyll molecule does not have a phytol tail? a. Chl- a b.
Chl-b c. Chl- c d. Chl -d . The correct sequence of flow of electrons in the light reaction is a.
PS II, plastoquinone, cytochrome, PS I, ferredoxin. b. PS I, plastoquinone, cytochrome, PS II ferredoxin. c.
PS II, ferredoxin, plastoquinone, cytochrome, PS I. d. PS II, plastoquinone, cytochrome, PS II, ferredoxin. .
Purple sulphur bacteria. Example: Thiospirillum and Chromatium. . Purple non-sulphur bacteria.
Example: Rhodopseudomonas and Rhodospirillum . Test tube funnel experiment or Experiment to prove oxygen evolved during Photosynthesis . Place Hydrilla plant at the bottom of a beaker containing water. .
Cover the plant with an inverted funnel. . Invert a test tube over the funnel. .
Keep this setup in sunlight. Note your observations (Figure . ). water displacement of ydrilla Hy Gas collected by downward Test tube Pond water Inverted funnel Figure .
: Test tube funnel experiment Summary Photosynthesis is an oxidation and reduction process. It has two phases: the light reaction and dark reaction. During light reaction water is oxidised to release O and during dark reaction CO is reduced to form sugars. Solar energy is trapped by pigment system I and pigment system II.
P700 and P680 act as reaction centres for PS I and PS II respectively. Splitting of water molecule (Photolysis) produces electrons, protons and oxygen. Photophosphorylation takes place through cyclic and non-cyclic mechanisms and generates energy and reducing power. Dark reaction or biosynthetic phase of photosynthesis use the products of light energy (ATP and NADPH H ) and carbon dioxide is reduced to Carbohydrates.
Carbon pathway in C cycle has RUBP as t Web