Identify the incorrectly matched row:

 

Character

Gymnosperm

Angiosperm

1.

Xylem

Tracheids only

Mainly vessels

2.

Pollination agency

Water only

Various

3.

Female gametophyte

Relatively large with distinct Archegonia

8-nucleate embryo sac

4.

Endosperm

Haploid

Triploid

Subtopic:  General Accounts of Gymnosperms: II | General Account of Angiosperms (OLD NCERT) |
 65%
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Aplanogametes [gametes that do not have flagella] are the special features of:
1. Spirogyra and Zygnema
2. Spirogyra and Vaucheria
3. Ulothrix and Zygnema
4. Chlamydomanas and Ulothrix

Subtopic:  Algae |

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Match each item in column I with one in Column II and select the correct answer from the codes given below:

Green alga

Feature

A. Chlamydomanas

a. Spiral chloroplasts

B. Volvox

b. Coenobium with two kinds of cells

C. Hydrodictyon

c. Palmella stage

D. Spirogyra

d. Non motile colony

Codes:

A B C D
1. a d b c
2. a b c d
3. c b a d
4. c d a b
Subtopic:  Chlorophyceae: Green Algae |

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The term ‘seaweeds’ is used to describe several macroscopic, multicellular marine algal species belonging to:

I. Chlorophyceae
II. Phaeophyceae
III. Rhodophyceae

1. I and II only 2. I and III only
3. II and III only 4. I, II and III
Subtopic:  Algae |

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The given pattern of life cycle will be seen in:

1. Spirogyra 2. Fucus
3. Ectocarpus 4. Polysiphonia
Subtopic:  Life Cycle Patterns in Plants (OLD NCERT) |
 59%
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The given pattern of life cycle will be seen in:

1. Spirogyra 2. Fucus
3. Ectocarpus 4. Polysiphonia
Subtopic:  Life Cycle Patterns in Plants (OLD NCERT) |
 60%
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The given pattern of life cycle will be seen in:

1. Spirogyra 2. Fucus
3. Chlamydomanas 4. Polysiphonia
Subtopic:  Life Cycle Patterns in Plants (OLD NCERT) |
 63%
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Match each item in Column I with one in Column II and select the correct answer from the codes given:

Column I

Column II

A. Floridean starch

a. It is created by photosynthesis and is made up of β(1→3)-glucan with β(1→6)-branches

B. Laminarin

b. An α-linked glucose polymer with a degree of branching intermediate between amylopectin and glycogen

C. Mannitol

c. A sugar alcohol, an isomer of sorbitol

Codes

A B C
1. a b c
2. a c b
3. b a c
4. c b a
Subtopic:  Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae | Chlorophyceae: Green Algae |
 69%

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In the given diagram of Funaria, what are A, B, C and D respectively?


1. Sporophyte, Gametophyte, Female branch, Male branch
2. Gametophyte, Sporophyte, Female branch, Male branch
3. Sporophyte, Gametophyte, Male branch, Female branch
4. Gametophyte, Sporophyte, Male branch, Female branch

Subtopic:  Bryophytes (Liverworts) |
 68%
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The given diagram shows:

1. Male thallus of Marchantia
2. Female thallus of Marchantia
3. Sphagnum sporophyte
4. Sphagnum gametophyte
Subtopic:  Bryophytes (Liverworts) |
 85%
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