MEDIUM
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IMPORTANT
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Assertion (A): In haplontic life cycle zygote acts as meiocyte.
Reason (R): In Spirogyra, non flagellated gametes will fuse to form zygote.
The correct option among the following is:

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Important Questions on Plant Kingdom

MEDIUM
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IMPORTANT
Study the following table and pick up the correct combinations:
S.No Type of flagellum Type of flagellum Example
I Pantonematic One row Euglena
II Stichonematic Two rows Astasia
III Acronematic Absent Polytoma
IV Pantacronematic Two or more rows Urceolus
MEDIUM
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IMPORTANT

Match the following lists:

  List-I   List-II
A. Protonema I. Useful in spore dispersal
B. Circinate venation II. Coiling of young leaves in Pteridophytes
C. Elaters III. Storage food in Rhodophyceae
D. Floridean starch IV. Juvenile stage of Bryophytes
    V.  Naked ovules

The correct match is

MEDIUM
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IMPORTANT
Arrange the functions of the following respectively:
(A) Elaters
(B) Indusium
(C) Agar
EASY
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IMPORTANT
The study of amphibians of plant kingdom is called:
EASY
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IMPORTANT

Assertion (A): In evolution, the distribution of Bryophytes and Pteridophytes, was limited.

Reason (R) : The need for water for the transportation of male gametes and fertilization limited their distribution.

The correct option among the following is:

HARD
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IMPORTANT
Match the following lists:
  List-I   List-II
(A) Siphonostele (I) Dissected siphonostele with overlapping leaf gaps
(B) Solenostele (II) Siphonostele with scattered leaf gaps
(C) Dictyostele (III) Central core of xylem surrounded by phloem
(D) Protostele (IV) Medullated protostele

The correct match is:

MEDIUM
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IMPORTANT

Assertion (A): In pteridophytes, the gametophytes require cool, damp, shady places to grow.

Reason R: Specific requirement and the need for water for fertilization, the spread of living pteridophytes is limited and restricted to narrow geographical regions.

The correct answer is:

MEDIUM
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IMPORTANT

Pteriodophytes, especially ferns possess the following characteristics

i) Circinate vernation

ii) Ramenta

iii) Eustele

iv) Paraphysis

The correct combination is