The filaments showing lateral conjugation are homothallic

The filaments showing scalariform conjugation are homothallic

The filaments showing lateral conjugation are heterothallic

Asexual reproduction occurs by zoospores

The filaments showing lateral conjugation are homothallic

EASY

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In Spirogyra

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Important Questions on Plant Kingdom

EASY

Biology>Diversity in the Living World>Plant Kingdom>Algae

An alga which can be employed as food for human beings:

MEDIUM

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

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

EASY

Biology>Diversity in the Living World>Plant Kingdom>Algae

Acronematic flagella are seen in ___.

MEDIUM

Biology>Diversity in the Living World>Plant Kingdom>Algae

Which one of the following statements is wrong?

EASY

Biology>Diversity in the Living World>Plant Kingdom>Algae

Phycoerythrin is the major pigment in:

MEDIUM

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

In algae, vegetative reproduction mainly takes place by:

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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