Home
Class 11
BIOLOGY
Assertion : The stromal thylakoids are r...

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

A

If both the asserition and the reasion are true and the reason is a correct explanation of the assertion

B

If both the assertion and reasoni s not a correct ecplanation of the assertio

C

If the assertion is true but the reason is false

D

If both the asseertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
D

The grana stacks of membranes in PS II and LHC (Light harvesting centre), while there is little ATP synthetase. On the other hand, a fraction of stroma thylakoids is rich in PS I and ATPase and poor in PS II and LHC.
Promotional Banner

Topper's Solved these Questions

  • NEURAL CONTROL AND COORDINATION

    ERRORLESS |Exercise Neural Control And Coordination|445 Videos
  • PLANT GROWTH AND DEVELOPMENT

    ERRORLESS |Exercise Plant Growth And Development|270 Videos

Similar Questions

Explore conceptually related problems

PS I and PS II occur over

PS I and PS II occur over

Assertion: The stoma lamellae have both PS I and PS II. Reason: The grana lamellae lack PS II and well as NADP reductase enzyme.

Name the reaction centers of PS I and PS II.

Which "photosythetic bacteria" possess both PS I and PS II

Assertion: Stroma lamellae have both PS I and PS II but the membrane of grana lack PS II as well as NADP reductase. Reason: Cyclic photophosphorylation also occurs when only light of wavelength below 680 nm is available for excitation.

The reaction centre for PS-I and PS-II are

PS-I and PS-II , were discovered by

During light dependent reaction light energy in coverted to chemical potential energy through the process of chemosis in the chloroplasts which of the following statement about this process is false I the electron carriers of phosphyorylation are located int he thylakoid II During phosphorylaton the chloroplast stroma becomes more acidic than the interior of thylakoid membrane III protons diffuce through the protein channels which are ATP synthetase molecules IV ATP is forme form ADP +Pi ion the stroma side of the thylakoid in the chloroplast V During phosphorylation water ionizes to from H^(+)+2OH^(-) yielding an e^(-) to PSII

ERRORLESS -PHOTOSYNTHESIS IN HIGHER PLANTS-Photosynthesis In Higher Plants
  1. In a chloroplast the highest number of protons are found in

    Text Solution

    |

  2. Photosysthesis cannot be operated in

    Text Solution

    |

  3. Assertion: C(4) pathwat of CO(2) rixation is found in some tropical pl...

    Text Solution

    |

  4. Assertion : Six molecules of CO(2)and twelve molecules of NADPH^(+)H^(...

    Text Solution

    |

  5. Assertion : Rhoeo leaves contain anthocynanin pigaments in epidermal c...

    Text Solution

    |

  6. Assertion : There is a decrease in photosynthesis, if the photosynthet...

    Text Solution

    |

  7. Assertion : The concentration of O(2) in atmosphre is inhibitary to ph...

    Text Solution

    |

  8. Asserotion: C(4) photosynthetic pathway is more efficient than the C(3...

    Text Solution

    |

  9. Assertion : CAM plants lack structural compartmentation of leaf, as fo...

    Text Solution

    |

  10. Assertion : Plants utilizing first RuBP in CO(2) fixations are clled C...

    Text Solution

    |

  11. Assertion : Cyclis pathway of photosythesis first apperead in some eub...

    Text Solution

    |

  12. Assertion : The stromal thylakoids are rich in both PS I and PS II R...

    Text Solution

    |

  13. Assertion : Cycle photophosphorylation synthesizes ATP. Reason : ATP...

    Text Solution

    |

  14. Assertion : Oxidative phosphorylation requires oxygen. Reason : Oxid...

    Text Solution

    |

  15. Assertion : Each molecule of ribulose-1 ,5 biphosphate fixes one molec...

    Text Solution

    |

  16. Assertin : CO(2) is transported form mesophyll cell to bundle sheath o...

    Text Solution

    |

  17. Asserton : One molecule of CO(2) is fixed to give 686 kcal in photosyn...

    Text Solution

    |

  18. Assertion : In the formation of one glucose, 686,000 calories energy a...

    Text Solution

    |

  19. Assertion : Sciophytes requir higher light intensity than peliophytes....

    Text Solution

    |

  20. Assertin : Plant utilize 5-10% of the absorbed water in photosynthesis...

    Text Solution

    |