Q. No.In pteridophytes, antheridium are present in :-
1. Leafy gametophyte
2. Prothallus
3. Sporophyll
4. Protonema
Which of the following feature(s) is/are exclusive in angiosperms :-
a. Presence of fruit
b. Double fertilization
c. Female gametophyte
d. Presence of flowers
e. Formation of endosperm
f. Presence of vessels and companion cells
Tick the right one :-
1. a, b, c, e
2. b, c, d, e
3. b, d, e, f
4. a, b, d, f
Read the following statements :
| (a) | More than one Archegonia |
| (b) | Show symbiotic associated with Nitrogen fixing Cyanobacteria and fungus |
| (c) | Show heterosporous nature |
| (d) | Reduced male gametophyte is called a pollen grain |
The above statement is related to which option?
| 1. | Bryophytes |
| 2. | Gymnosperms |
| 3. | Pteridophytes and Gymnosperm |
| 4. | Gymnosperm and Angiosperm |
What is a, b, c, and d in the given table for algae?
|
Class |
Pigment |
Stored food |
Flagella |
|
Chlorophyceae |
Chl. a, b |
__a__ |
2-8 equal |
|
__b__ |
Chl. a, c, Fucoxanthin |
Laminarin |
__c__ |
|
Rhodophyceae |
Chl. a, d, Phycoerythrin |
__d__ |
Absent |
| 1. | a : Starch; b : rhodophyceae; c : 2, Lateral equal; d : Floriden starch |
| 2. | a : Glycogen; b : Pheophyceae; c : 2 Lateral unequal; d : Floriden starch |
| 3. | a : Starch; b : Pheophyceae; c : 2 apical unequal; d : Floriden starch |
| 4. | a : Starch; b : Pheophyceae; c : 2 Lateral unequal; d : Floriden starch |
Which of the following pairs is of unicellular algae?
1. Gelidium and Gracilaria
2. Anabaena and Volvox
3. Chlorella and Spirulina
4. Laminaria and Sargassum
Floridian starch has structure similar to :
1. Amylopectin and glycogen
2. Mannitol and algin
3. Laminarin and cellulose
4. Starch and cellulose
Which of the following is not true about red algae?
| 1. | Predominance of r-phycoerythrin in their body |
| 2. | Majority of them are found in colder areas |
| 3. | The red thalli of most of the red algae are multicellular |
| 4. | The food is stored as floridean starch |
Find the incorrect match
1. Isogametes – Cladophora
2. Isogametes – Rhizopus
3. Heterogametes – Ulothrix
4. Heterogametes – Volvox
Phycoerythrin is the major pigment in :
| 1. | Red algae | 2. | Blue-green algae |
| 3. | Green algae | 4. | Brown algae |
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