Home
Class 11
BIOLOGY
Algae aften float on surface of water du...

Algae aften float on surface of water during day but sink down during night due to

A

evolution and trapping of oxygen bubbles during day in their photosynthesis

B

becoming light as they consume most of their food in the night

C

warming action of sun during the day

D

release of absorbed air by warming of water

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MORPHOLOGY OF FLOWERING PLANTS (ANGIOSPERMS)

    TRUEMAN BIOLOGY|Exercise Multiple Choice Questions|327 Videos

Similar Questions

Explore conceptually related problems

Algae often float on surface of water during day but sink down during night due to

Algae and other submerged plants floud in water during day time and sink at night, because

Stomata open during day due to

Planktons move towards surface of water during night and descend to depth during day. This is klnown as

In which type of plants, the stomata remain closed during day time and open during night

TRUEMAN BIOLOGY-PHOTOSYNTHESIS IN HIGHER PLANTS-MULTIPLE CHOICE QUESTIONS
  1. One of the following pigments does not occur in chloroplast.

    Text Solution

    |

  2. Which colour of light gives maximum absorption peak of chlorophyll a

    Text Solution

    |

  3. Algae aften float on surface of water during day but sink down during ...

    Text Solution

    |

  4. Thylakoids removed from chloroplasts were kept in illuminated culture ...

    Text Solution

    |

  5. The evidence that during photosynthesis oxygen comes from water is

    Text Solution

    |

  6. If the rate of translocation of food is slow, what will be the effect ...

    Text Solution

    |

  7. Aerobic bacteria collect near illuminated phytoplankton due to

    Text Solution

    |

  8. Maximum O(2) evolution occurs from

    Text Solution

    |

  9. Photo-oxidation or photolysis of water (in photosynthesis) occurs in a...

    Text Solution

    |

  10. Law of limiting factors in photosynthesis was given by:

    Text Solution

    |

  11. The enzyme that catalyses carbon dioxide fixation in C(4) plants is

    Text Solution

    |

  12. The first stable product in CAM//C(4) plants is

    Text Solution

    |

  13. C(4) plants can absorbs CO(2) from

    Text Solution

    |

  14. The first carbon fixation in C(4) pathway occurs in chloroplasts of

    Text Solution

    |

  15. In C(4) plants, Calvin cycle operates in

    Text Solution

    |

  16. Carotenoids

    Text Solution

    |

  17. A chlorophyll molecule has the magnesium located in the

    Text Solution

    |

  18. The common xanthophyll occuring in leaves is

    Text Solution

    |

  19. Carotenes absorb light and transmit and hence are orange in colour

    Text Solution

    |

  20. the empirical formula for chlorophyll a is

    Text Solution

    |