Pyrenoid is

(1) Storage bodies located in cytoplasm of chloropbyceae

(2) Storage bodies located in cytoplasm of Phaeophyceae

(3) Storage bodies located in chloroplast of chlorophyceae

(4) Storage bodies located in chloroplast of Phaeophyceae

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 78%
From NCERT
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Green algae usually have a rigid cell wall made of an inner layer of ….…. and outer layer of ………

(1) Pectose, Cellulose

(2) Cellulose, Pectose

(3) Algin, carrageenan

(4) Carrageen, Algin

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 89%
From NCERT
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Examples of Green alga is not

(1) Chlamydomonas,Volvox,Ulothrix

(2) Spirogyra

(3) Chara

(4) Fucus

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 87%
From NCERT
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Vegetative reproduction in chlorophyceae takes place by

(1) Fragmentation+ spore formation

(2) Only spore formation

(3) Only Fragmentation

(4) Isogamous

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 59%
From NCERT
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Asexual reproduction in chlorophyceae is by

(1) Zoospore formation in Antheriodiophore

(2) Fragmentation

(3) Zoospore formation in Zoosporangia

(4) Both 1 and 2

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae: II | Chlorophyceae: Green Algae |
 58%
From NCERT
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Zoospore formed during asexual reproduction in chlorophyceae are

(1) Flagellated

(2) Non-flagellated

(3) Ciliated

(4) Non ciliated

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 87%
From NCERT
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This picture is associated with an organism that belongs to a class. Which of the following features is not correct about that class?

                                  

(1) Three types of sexual reproduction

(2) A variety of chloroplast in different species

(3) Inner pectose and outer cellulose in cell wall

(4) Pigments-choorophyll a and chlorophyll b

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 75%
From NCERT
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Gametophyte in the pteridophytes is

(i) Small, inconspicuous.
(ii) Long lived, unicellular.
(iii) Mostly photosynthetic thalloid or saprophytic.
(iv) Short lived, haploid.

How many statements are correct with respect to gametophyte?

1. Two 

2.Three

3. Four 

4. One

Subtopic:  Pteridophytes: Heterospory | Pteridophytes |
 52%
From NCERT
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Given below are three statements each with one blank. Select the option which correctly fill up the blanks in two statements

(i) _______ systems gave equal weightage to vegetative and sexual characteristics.

(ii) Number and codes are assigned to all the characters and the data are then processed in _______ taxonomy.

(iii) ________ systems assume that organisms belonging to the same taxa have a common ancestor.

1. (i) - Artificial, (iii) - Natural

2. (ii) - Phenetics, (iii) - Artificial

3. (i) - Artificial, (ii) - Chemotaxonomy

4. (iii) - Phylogenetic, (i) - Artificial

Subtopic:  Classification System: I | Classification System: II | Classification System |
 65%
From NCERT
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Classification of organisms on the basis of gene sequencing is

1.  Cytotaxonomy

2.  Karyotaxonomy

3.  Chemotaxonomy

4.  Classical taxonomy

Subtopic:  Classification System: I | Classification System: II | Classification System |
From NCERT
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