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Biology

General

Easy

Question

Read carefully the given statements about algae and choose the correct option
I) The plant body is thalloid
II) Mainly aquatic
III) Reproduction takes place by vegetative, asexual and sexual
IV) $V o l v o x$ and $U l o t h r i x$ are the colonial form of algae

I, II and III
II, III and IV
I, III and IV
I, II, III and IV

The correct answer is: I, II and III

Algae is a group of chlorophyll bearing, photosynthetic, autotrophic, thalloid plants. Except a few, all the algae are aquatic. The algae reproduce by vegetative, asexual and sexual means. Ulothrix is a filamentous algae and Volvox is in colonial form

Related Questions to study

Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given.
I) In Chlorophyceae, the stored food material is starch and the major pigments are chlorophyll- $a a n d blank d.$
II) In Phaeophyceae, laminarian is the stored food and major pigments are chlorophyll- $a a n d blank b.$
III) In Rhodophyceae, floridean starch is the stored food and major pigments are chlorophylla- $a comma blank d$ and phycoerythrin.

Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given.
I) In Chlorophyceae, the stored food material is starch and the major pigments are chlorophyll- $a a n d blank d.$
II) In Phaeophyceae, laminarian is the stored food and major pigments are chlorophyll- $a a n d blank b.$
III) In Rhodophyceae, floridean starch is the stored food and major pigments are chlorophylla- $a comma blank d$ and phycoerythrin.

Protonema is formed in

Protonema is formed in

Phycoerythrin is present in

Phycoerythrin is present in

parallel

Agar, one of the commercial products obtained from red algae is used

Agar, one of the commercial products obtained from red algae is used

In the given diagram, parts labelled as, $A comma blank B comma blank C comma blank D comma blank E$ and $F$ are respectively identified as

In the given diagram, parts labelled as, $A comma blank B comma blank C comma blank D comma blank E$ and $F$ are respectively identified as
BiologyGeneral

Ovules of gymnosperm is

Ovules of gymnosperm is

parallel

In algae the flagellate (motile) spore is called

In algae the flagellate (motile) spore is called

In pteridophytes, phloem is without

In pteridophytes, phloem is without

Of the following groups, which secrete and deposit calcium carbonate and appear like corals?

Of the following groups, which secrete and deposit calcium carbonate and appear like corals?

parallel

Ovules are borne on

Ovules are borne on

In $S p i r o g y r a$ the sporophytic stage is dominant

In $S p i r o g y r a$ the sporophytic stage is dominant

The cones bearing megasporophyll with ovules are called

The cones bearing megasporophyll with ovules are called

parallel

The alga used in space research is

The alga used in space research is

Which of the following is not the feature of gymnosperms?

Which of the following is not the feature of gymnosperms?

In $F u n a r i a comma$ antheridial branch is called

In $F u n a r i a comma$ antheridial branch is called

parallel

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