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Plant Kingdom: Class-XI


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MCQs on Plant Kingdom: Class-XI for NEET Practice


Phycoerythrin is the major pigment in:

[class-xi ]

  • Red algae
  • Blue green algae
  • Green algae
  • Brown algae
    • Correct Option: A  [ Red algae ]

    Remark:

Which of the following statements is incorrect about gymnosperms?

[class-xi ]

  • They are heterosporous
  • Male and female gametophytes are free living
  • Most of them have narrow leaves with thick cuticle
  • Their seeds are not covered
    • Correct Option: B  [ Male and female gametophytes are free living ]

    Remark:

Male and female gametophytes do not have an independent free living existence in:

[class-xi ]

  • Pteridophytes
  • Algae
  • Angiosperms
  • Bryophytes
    • Correct Option: C  [ Angiosperms ]

    Remark:

Which of the following pairs is of unicellular algae?

[class-xi ]

  • Laminaria and Sargassum
  • Gelidium and Gracilaria
  • Anabaena and Volvox
  • Chlorella and Spirulina
    • Correct Option: D  [ Chlorella and Spirulina ]

    Remark:

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:

[class-xii ]

  • Liverworts
  • Pteridophytes
  • Mosses
  • Gymnosperms
    • Correct Option: B  [ Pteridophytes ]

    Remark:

Read the following statements and choose the set of correct statements:

In the members of Phaeophyceae,

A. Asexual reproduction occurs usually by biflagellate zoospores.
B. Sexual reproduction is by oogamous method only.
C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.

Choose the correct answer from the options given below:

[class-xi ]

  • B, C, D and E only
  • A, B, C and D only
  • A, B, C and E only
  • A, C, D and E only
    • Correct Option: D  [ A, C, D and E only ]

    Remark: Explanation: NCERT Page No.26, (Topic-3.1.2 Phaeophyceae)
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