Q. No.In the given diagram of the green alga Chara, the parts labeled A and B respectively are called :
1. Nucule and Globule
2. Globule and Nucule
3. Antheridium and Archegonium
4. Archegonium and Antheridium
2. Globule and Nucule
3. Antheridium and Archegonium
4. Archegonium and Antheridium
In the life cycle of a moss, the sporphytic generation is represented by all the following except:
| 1. | Oospore | 2. | Spore |
| 3. | Sporogonium | 4. | Spore mother cell |
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 |
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
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 |
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 |
The given pattern of life cycle will be seen in:
| 1. Spirogyra | 2. Fucus |
| 3. Ectocarpus | 4. Polysiphonia |
The given pattern of life cycle will be seen in:
| 1. Spirogyra | 2. Fucus |
| 3. Ectocarpus | 4. Polysiphonia |
The given pattern of life cycle will be seen in:
| 1. Spirogyra | 2. Fucus |
| 3. Chlamydomanas | 4. Polysiphonia |
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 |
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