Home
Class 11
BIOLOGY
In which class of algae, gametes are pyr...

In which class of algae, gametes are pyriform (pear-shaped) and bear two unequal laterally attached flagella?

Text Solution

Verified by Experts

The correct Answer is:
Phaeophyceae
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The leaf base may bear two lateral small structures called

By which medium gametes of algae, bryophytes and pteridophytes move ?

To suggest rule for inheritance of earlobe type. Procedure /Method : rarr The lowest part of the ear pinna called the earlobe, is closely attached to the side of the head, i.e., attached or not, i.e., free. rarr Observe the earlobes of all the students in the class. Prepare a list of students. Enter the data about the earlobes whether they are free or attached. rarr Find out about the earlobes of the parents of each student in the class. rarr Correlate earlobe type of each student with that of their parents. rarr In the column write F for free earlobe and A for attached earlobe. Answer the following questions on the basis of the collected data: Which expression of earlobe is observed more in number in your class?

To suggest rule for inheritance of earlobe type. Procedure /Method : rarr The lowest part of the ear pinna called the earlobe, is closely attached to the side of the head, i.e., attached or not, i.e., free. rarr Observe the earlobes of all the students in the class. Prepare a list of students. Enter the data about the earlobes whether they are free or attached. rarr Find out about the earlobes of the parents of each student in the class. rarr Correlate earlobe type of each student with that of their parents. rarr In the column write F for free earlobe and A for attached earlobe. Answer the following questions on the basis of the collected data: From your collected data state which expression is dominant and which one is recessive for earlobe.

There are two cylinder shaped wooden bullets, each having mass M, in a vertical wall sewage, which contains water in it. The two bullets have same size and same material , they touch each other and walls of sewage. One of them is totally under water, where the other one is immersed only half into water. Friction is negligible if density of wood is given by (3)/(x)p_(omega) (p_(omega) "is density of water") then find x

Two identical ball bearings in contact with each other and resting on a frictionless table are hit heat-on by another ball bearing of the same mass moving initially with a speed V as shown in figure. If the collision is elastic, which of the following (figure) is a possible result after collision ?

Rachel, an engineering student, was asked to make a model shaped like a cylinder with two cones attached at its two ends by using a thin aluminium sheet. The diameter of the model is 3 cm and its length is 12 cm. If each cone has a height of 2 cm, find the volume of air contained in the model that Rachel made. (Assume the outer and inner dimensions of the model to be nearly the same.)

ALLEN -DIVERSITY OF THE LIVING WORLD-Exercise
  1. Assertion:- Members of Rhodophyceae are called red algae Reason:- Re...

    Text Solution

    |

  2. Floridean starch is similar to (A) and glycogen in structure

    Text Solution

    |

  3. In which class of algae, gametes are pyriform (pear-shaped) and bear t...

    Text Solution

    |

  4. Gracilaria ad Porphyra are the members of which algae class?

    Text Solution

    |

  5. In liverworts, (A) are green multicellular, asexual buds, which devel...

    Text Solution

    |

  6. In bryophytes, zygotes do not undergo reductino division immediately. ...

    Text Solution

    |

  7. Find the ploidy level of followings with respect to bryophytes:- A-G...

    Text Solution

    |

  8. In bryophytes, the dominant phase in the life cycle is the plant body...

    Text Solution

    |

  9. Which part of gametophytic plant body of mass bears sex organs-antheri...

    Text Solution

    |

  10. Identify the following figures (A,B):-

    Text Solution

    |

  11. How many of the following have heterosporous nature? Selaginalla, Eq...

    Text Solution

    |

  12. Read the following informations and identify the genus * Coralloids ...

    Text Solution

    |

  13. The spread of living pteridophytes is limited and restricted to narrow...

    Text Solution

    |

  14. Female cone to Mega sporophylls to Megasporongia to Megaspores For a...

    Text Solution

    |

  15. Identify the name of processes (A&B) in the given sequence Microspor...

    Text Solution

    |

  16. In gymnosperms, the male and the female gametophytes do not have an in...

    Text Solution

    |

  17. Write the names of male and female sex organs of angiosperms respectiv...

    Text Solution

    |

  18. In how many classes angiosperms are divided?

    Text Solution

    |

  19. Ovules, stamen, ovary, carpel, anther, antipodals, synergids, Pollen g...

    Text Solution

    |

  20. Angiosperms range in size from tiny, almost microscopic e.g. (A) to ta...

    Text Solution

    |