Home
Class 12
BIOLOGY
Assertion :- Both PS-I and PS-II are loc...

Assertion :- Both PS-I and PS-II are located on stroma thylakoid membrane
Reason :- Photolysis of water and reduction of `NADP^(+)` takes place in stroma site.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    MOTION|Exercise Exercise - 4 (AIIMS -2016)|2 Videos

  • PERIPLANETA (COCKROACH)

    MOTION|Exercise EXERCISE - 1 (FROG)|31 Videos

  • PLANT GROWTH AND DEVELOPMENT

    MOTION|Exercise Exercise - 4|29 Videos

Similar Questions

Explore conceptually related problems

Assertion: Photosynthesis is a redox process. Reason : Oxidation of carbon dioxide and reduction of water takes place in photosynthesis.

Assertion: The NADP reductase enzyme is located on the stroma side of the membrane of thylakoid Reason: During proton accumulation in lumen there is measurable decrease in pH in the stroma.

(a) Both assertion (A) and (R) are true and reason (R) is the correct explanation of assertion (A). (b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A). (c) Assertion (A) is true but reason (R) is false. (d) Assertion (A) is false but reason (R) is true Assertion (A) : Herbivores have larger small intestine as compared to carnivores. Rason (R) : Complete digestion of food takes places in small intestine.

Assertion :- Both meiosis-I and meiosis -II are always interrupted by interkinesis. Reason:- Interkinesis is the preparatory phase in which all essential proteins and nucleic acid is to be synthesise.

Following steps in random order are given below for photophsophorylation through chemiosmosis I ATP synthase produces ATP due to flow of H^(+) form thylakoid lumen to stroma II NADP reductase located on stroma side of membrane obtains e^(-) froms PSI and protons from stroma to form NADPH_(2) IIICyotchrome system (B&F) transport electrons and pumps H^(+) form stroma to thylakoid space IV PSII oxidises water V Reaction centre of PSII gets photoecited having released electrons

Assertion : The stromal thylakoids are rich in both PS I and PS II Rason : The granal membranes are rich in ATP synthetase.

Assertion. Protons produced by photolysis accumulate in lumen of thylakoids Reason. Photolysis occurs in inner membrane of thylakoids

MOTION-PHOTOSYNTHESIS IN HIGHER PLANTS-Exercise - 4 (ASSERTION & REASON QUESTIONS)
  1. Assertion :- Excitement of electron from PS to first e-acceptor is uph...

    Text Solution

    |

  2. Assertion :- The whole scheme of transfer of elec- trons strarting fro...

    Text Solution

    |

  3. Assertion :- Both PS-I and PS-II are located on stroma thylakoid membr...

    Text Solution

    |

  4. Assertion :- In Stroma lamellae cyclic photophosphorylation is the onl...

    Text Solution

    |

  5. Assertion :- Energy is not required to pump protons from stroma to lum...

    Text Solution

    |

  6. Assertion:- Biosynthetic phase of photosynthesis is also termed as dar...

    Text Solution

    |

  7. Assertion :- In all photosynthetic plants first fixa- tion product dur...

    Text Solution

    |

  8. Assertion :- Carboxylation is the most crucial step of the Calvin cycl...

    Text Solution

    |

  9. Assertion :- To make one molecule of glucose 6 turns of Calvin cycle a...

    Text Solution

    |

  10. Assertion :- C(4) pathway can not effectively work at low temperature ...

    Text Solution

    |

  11. Assertion :- C(4) plants can tolerate high light intensities. Reason...

    Text Solution

    |

  12. Assertion :- In C(4) plants there is no photorespiration Reason :- I...

    Text Solution

    |

  13. Assertion :- C(4) plants show greater productivity of biomass. Reaso...

    Text Solution

    |

  14. Assertion :- C(4) plants can perform better phtosynthesis even in low ...

    Text Solution

    |

  15. Assertion :- In mesophyll cells of C(4) plants there is no sugar forma...

    Text Solution

    |

  16. Assertion :- In C(4) plants CO(2) always transports to bundle sheath c...

    Text Solution

    |

  17. Assertion :- C(4) plants are less efficient than C(3) plants Reason ...

    Text Solution

    |

  18. Assertion :- The basic pathway that results in formation of sugars, th...

    Text Solution

    |

  19. Assertion :- Rubisco show either carboxylation or oxygenation activity...

    Text Solution

    |

  20. Assertion :- Photorespiration is one of the wasteful processes. Reas...

    Text Solution

    |