Identify the incorrectly matched pair:
1. Diatoms: Chief producers in oceans
2. Dinoflagellates: Red tides
3. Slime moulds: Spores dispersed by water
4. Euglenoids: Protein rich pellicle
Match each item in Column I with one in Column II and select your answer from the codes given below:
| Column I | Column II | ||
| A. | Diatoms | a. | Protein-rich layer of pellicle |
| B. | Dinoflagellates | b. | Cell wall embedded with silica |
| C. | Euglenoids | c. | Spores with true walls |
| D. | Slime moulds | d. | Cellulose plates in the cell wall |
Codes:
| A | B | C | D | |
| 1. | b | a | c | d |
| 2. | b | d | a | c |
| 3. | b | c | a | d |
| 4. | b | a | d | c |
Myxomycetes are
(1) saprobes or parasites, having mycelia, asexual reproduction by fragmentation, sexual reproduction by fusion of gametes
(2) slimy mass of multinucleate protoplasm, having pseudopodia-like structures for engulfing food, reproduction through fragmentation or zoospores
(3) prokaryotic organisms, cellular or acellular, saprobes or autotrophic, reproduce by binary fission
(4) eukaryotic, single-celled or filamentous, saprobes or autotrophic, asexual reproduction by fusion of two cells or their nuclei
Which one exhibits the character of a protozoan during one phase of its life cycle and character of fungi in another phase of its life cycle?
(1) Water moulds
(2) Psilophytes
(3) Slime moulds
(4) Diatoms
These organisms are fungus like in one phase of their life cycle and Amoeba like in another phase of their life cycle
(1) diatoms
(2) slime molds
(3) dinoflagellates
(4) water molds
Slime moulds aren't/haven't
1. Extremely resistant
2. Having spores which are dispersed by air currents
3. An aggregation called as plasmodium
4. Photoautotrophs
The thalloid body of a slime mould (Myxomycetes) is known as:
1. protonema
2. Plasmodium
3. fruiting body
4. mycelium
Members of myxomycetes (slime moulds) move from one place to other by:
(1) Ciliary movements
(2) Cyclosis
(3) Amoeboid movement
(4) Rotation
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