Which one of the following is heterosporous?
1. Dryopteris
2. Salvinia
3. Adiantum
4. Equisetum
Algae that are mostly found in warm coastal waters of oceans are the
| 1. | Green algae | 2. | Brown algae |
| 3. | Red algae | 4. | None of these |
Chlorophyll a, chlorophyll d and phycoerytherin occur in
| 1. | Chlorophyceae | 2. | Bacillariophyceae |
| 3. | Cyanophyceae | 4. | Rhodophyceae |
Ulothrix is
| 1. | Filamentous algae with flagellated reproductive stages |
| 2. | Filamentous algae with non–flagellated reproductive stages |
| 3. | Membranous algae producing zoospores |
| 4. | Nonmotile colonial algae lacking reproductive stages |
The characteristic pigment found in brown algae is
| 1. | Phycocyanin |
| 2. | Fucoxanthin |
| 3. | Phycoerytherin |
| 4. | Haematochrome |
An alga rich in proteins is
| 1. | Chlorella | 2. | Oscillatoria |
| 3. | Ulothrix | 4. | Spirogyra |
Motile flagellated cells are never produced by the members of
| 1. | Chlorophyta | 2. | Chrysophyta |
| 3. | Phaeophyta | 4. | Rhodophyta |
Which of the following classification is now easily carried out using computers is based on all observable characteristics?
| 1. | Natural classification |
| 2. | Artificial classification |
| 3. | Practical classification |
| 4. | Numerical classification |
The four sketch (A, B, C and D) given below represents four different types of organisms. Which one of these is correctly identified in the options given, along with its correct food and class :
A. B.
c.
D.
|
Name of organism |
Stored food |
Class |
|
a. Anabaena |
Glucose |
Slime mould |
|
b. Porphyra |
Floridean starch |
Red Algae |
|
c. Chara |
Laminarin |
Green Algae |
|
d. Chlamydomonas |
Manitol |
Brown Algae |
1. a
2. b
3. c
4. d
Identify the incorrect difference between a bryophyte and a pteridophyte:
|
|
Feature |
Bryophyte |
Pteridophyte |
|
1. |
Main plant body |
Gametophyte |
Sporophyte |
|
2. |
Vascular tissue |
Absent |
Present |
|
3. |
True roots |
Absent |
Present |
|
4. |
Transfer of antherozoids |
Water required |
Water not required |