The system of classification of plants given by Carolus Linnaeus was:
1. an artificial system based mainly on the androecium structure.
2. a natural system based on large number of natural affinities between flowering plants.
3. was a phylogenetic system based on evolutionary relationships.
4. was a chemotaxonomic system based on structure of homologous proteins.
Subtopic:  Classification System: II |
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In numerical taxonomy:

I: computers are used and all the observable characters are taken into consideration.
II: hundreds of characters can be considered together and each character is given equal importance.


1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. both I and II are incorrect

Subtopic:  Classification System: I |
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Match each item in Column I with one in Column II and select the correct match as your answer from the coders given:
Column I
[Classification method]
Column II
[Feature used]
A. Artificial P. Evolutionary relationships
B. Phylogenetic Q.  Gross morphological characters
C. Chemotaxonomy R. Chemical constituents of plants
D. Cytotaxonomy S. Chromosome number, structure and behaviour

Codes
A B C D
1. P Q S R
2. Q P R S
3. R S P Q
4. S R Q P
Subtopic:  Classification System: II |
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Fusion of two gametes which are dissimilar in size is termed as

 
1. Oogamy 2. Isogamy
3. Anisogamy 4. Zoogamy
Subtopic:  Algae |
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Consider the following statements regarding green algae:

I: Pigments are located in definite plastids
II: Most have pyrenoids in chloroplasts
III: Cell wall has an inner layer of pectose and outer layer of cellulose

 

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct

Subtopic:  Chlorophyceae: Green Algae |
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Identify the incorrectly matched pair:

Alga Sexual reproduction
I: Ulothrix Isogamous; non-flagellated gametes
II: Spirogyra Isogamous; flagellated gametes
III: Udorina Anisogamous
IV: Fucus Oogamous
 
1. Only III 2. I, II and III
3. Only I and II 4. Only III and IV
Subtopic:  Algae |
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Consider the given statements:
I: Algin is a hydrocolloid derived from brown algae
II: Carrageen is a hydrocolloid derived from green algae
III: Agar is a complex polysaccharide derived from red algae, Gelidium and Gracilaria

1. I is correct; II is incorrect; III is incorrect
2. I is incorrect; II is correct; III is correct
3. I is incorrect; II is correct; III is incorrect
4. I is correct; II is incorrect; III is correct
Subtopic:  Algae |
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Which of the following is not an example of an edible alga?

1. Porphyra 2. Laminaria
3. Sargassum 4. Amanita
Subtopic:  Algae |
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Which of the following feature given in column I is not correctly matched with its correct description given in Column II with respect to members of Chlorophyceae?
Column I Column II
1. Main photosynthetic pigment Chlorophyll a, b
2. Cell wall Inner layer of cellulose and outer layer of pectose
3. Stored food Starch
4. Flagellar number and insertion 2-8. unequal. basal
Subtopic:  Chlorophyceae: Green Algae: II |
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All the following statements will be true for brown algae except:
1. Major pigments are chlorophyll a, c, fucoxanthin
2. Food is stored as complex carbohydrates which may be in the form of Laminarin or Mannitol
3. Vegetative cells have chitinous wall usually covered on the outside by a gelatinous coating of algin
4. Flagellar number and insertions are 2, unequal and lateral
Subtopic:  Pheophyceae: Brown Algae |
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