Q. No.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
II. Phaeophyceae
III. Rhodophyceae
What would be true for the structure labeled with letter ‘X’ in the given diagram showing the ultrastructure of Chlamydomanas?
1. It is the region of the chloroplast where circular DNA is present
2. It is associated with the operation of a carbon-concentrating mechanism (CCM)
3. It is the inclusion body with accumulated toxic wastes for elimination
4. It is filled with air and is responsible for buoyancy of the organism
The diagram shows a sorus in section in ferns. What would be the name for A?
1. Annulus
2. Placenta
3. Indusium
4. Stomium
The given pattern of life cycle will be seen in:
| 1. Spirogyra | 2. Fucus |
| 3. Ectocarpus | 4. Polysiphonia |
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The given pattern of life cycle will be seen in:
| 1. Spirogyra | 2. Fucus |
| 3. Ectocarpus | 4. Polysiphonia |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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The given pattern of life cycle will be seen in:
| 1. Spirogyra | 2. Fucus |
| 3. Chlamydomanas | 4. Polysiphonia |
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In the given longitudinal section of archegonium of moss identify A, B, C and D respectively:
1. Ventral canal cell, Neck canal cell, Egg, Venter
2. Ventral canal cell, Neck canal cell, Venter, Egg
3. Neck canal cell, Ventral canal cell, Venter, Egg
4. Neck canal cell, Ventral canal cell, Egg, Venter
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 |
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
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