Identify the incorrectly matched comparison between liverworts and mosses:
Character |
Liverworts |
Mosses |
|
1. |
Gametophyte |
Thalloid and dorsiventral |
Leafy and radial |
2. |
Rhizoids |
Unicellular, mostly unbranched |
Multicellular, generally branched |
3. |
Protonema |
Mostly absent or small |
Distinct and well developed |
4. |
Elaters |
Absent |
Present |
Identify the parts labeled as 1, 2 and 3 in prothallus of the fern:
A | B | C | |
1. | Archegonium | Antheridium | Multicellular rhizoids |
2. | Antheridium | Archegonium | Multicellular rhizoids |
3. | Archegonium | Antheridium | Unicellular rhizoids |
4. | Antheridium | Archegonium | Unicellular rhizoids |
The earliest land plants lacked true roots. What may have enabled them the most to colonize land?
1. | Symbiotic associations with fungi |
2. | Prostrate thalloid body |
3. | Motile antherozoids capable of reaching the egg through water |
4. | Parasitic and saprophytic modes of nutrition |
Charophytes are the only living algae that share distinctive derived traits with land plants that other algae don’t. All the following will be examples of such derived traits except:
1. Rings of cellulose-synthesizing proteins
2. Structure of flagellated sperms
3. Formation of a phragmoplast
4. Presence of chlorophyll a and b
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
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 |