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The sexual reproduction in Spirogyra is

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Important Questions on Plant Kingdom

EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
Which of the following pairs is of unicellular algae?
HARD
Biology>Diversity in the Living World>Plant Kingdom>Algae

Identify the figures given below marked as A, B, C, and D.

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EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
An alga which can be employed as food for human beings:
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Biology>Diversity in the Living World>Plant Kingdom>Algae
Acronematic flagella are seen in ___.
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Biology>Diversity in the Living World>Plant Kingdom>Algae
Isogamous reproduction and flagellated gametes can be observed in
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Biology>Diversity in the Living World>Plant Kingdom>Algae
Phycoerythrin is the major pigment in:
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
Which one of the following is wrong about Chara?
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
Which of the following algae produce carrageen?
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
Which one of the following statements is wrong?
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Biology>Diversity in the Living World>Plant Kingdom>Algae
Which one of the following statements is wrong?
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Biology>Diversity in the Living World>Plant Kingdom>Algae
Find incorrect statements from the following.
A) The cell wall of Gracilaria has an outside gelatinous coating.
B) Dictyota has flagellated spermatium.
C) Hornworts show haplodiplontic life cycle.
D) Volvox zygote acts as a zoospore.
MEDIUM
Biology>Diversity in the Living World>Plant Kingdom>Algae
Identify the correct statement about algae and fungi:
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
The plant body having holdfast, stipe and frond is a characteristic of:
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
Floridean starch has structure similar to
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
Which of the following algae contains mannitol as reserve food material?
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
In algae, vegetative reproduction mainly takes place by:
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Biology>Diversity in the Living World>Plant Kingdom>Algae
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:
EASY
Biology>Diversity in the Living World>Plant Kingdom>Algae
An example of colonial alga is
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Biology>Diversity in the Living World>Plant Kingdom>Algae
Which one is wrongly matched?
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Biology>Diversity in the Living World>Plant Kingdom>Algae
In Oogamy, fertilization involves ________