- 1(current)
Q. No.The chief producers in the oceans are:
| 1. | Floating hydrophytes | 2. | Blue green algae |
| 3. | Desmids | 4. | Diatoms |
Subtopic: Kingdom Protista: Chrysophytes |
87%
From NCERT
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Chrysophytes:
| I. | include diatoms and desmids |
| II. | are found only in marine water |
| III. | are planktonic |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Kingdom Protista: Chrysophytes |
61%
From NCERT
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The cell walls of diatoms are ‘indestructible’ as they are embedded with:
| 1. | Silica | 2. | Chitin |
| 3. | Calcium | 4. | Raphides |
Subtopic: Kingdom Protista: Chrysophytes |
95%
From NCERT
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The given figure shows the architecture of the cell wall of:
| 1. Archaebacteria 2. Gram positive bacteria 3. Diatoms 4. Dinoflagellates |
 |
Subtopic: Kingdom Protista: Chrysophytes |
67%
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Match each item in Column I [Protist] with one in Column II [Characteristic] and select the correct option:
| Protist | Characteristic |
| A. Chrysophytes | P. Plasmodium |
| B. Dinoflagellates | Q. Chief producers in the ocean |
| C. Euglenoids | R. Stiff cellulose plates in cell wall on outer surface |
| D. Slime moulds | S. Two flagella, one long and one short |
| A | B | C | D | |
| 1. | R | Q | S | P |
| 2. | Q | S | P | R |
| 3. | Q | R | S | P |
| 4. | R | S | Q | P |
Subtopic: Different Classification Systems | Kingdom Protista: Chrysophytes | Kingdom Protista: Dinoflagellates |
81%
From NCERT
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- 1(current)
Q. No.
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