Mycoplasma are similar to Euglenoids in that both:
1. are obligate aerobes
2. are heterotrophs
3. lack a cell wall
4. cause harmful blooms in water bodies
The cell surface of Euglena is unique amongst eukaryotes. It is called
1. Pellicle
2. Tunica
3. Cuticle
4. Exodermis
| List I | List II | ||
| A. | Diatoms | I. | Pellicle instead of cell wall |
| B. | Dinoflagellate | II. | Red tides |
| C. | Euglenoid | III. | Chief producers in oceans |
| D. | Sporozoan | IV. | Malaria |
| Column -I | Column-II |
| A. Plasmodium | (i) Diatoms |
| B. Mixotrophic nutrition | (ii) Euglenoids |
| C. Red tide | (iii) Dinoflagellates |
| D. Oceanic chief producers | (iv) Slime moulds |
| I: | Eukaryotic cell type |
| II: | Absent cell wall |
| III: | Capability to act as a heterotroph when deprived of sunlight |
| 1. | Kingdom Monera, as a mycoplasma |
| 2. | Kingdom Protista, as a euglenoid |
| 3. | Kingdom Protista, as a dinoflagellate |
| 4. | Kingdom Animalia, as a sponge |
Majority of Euglenoids are freshwater organisms found in stagnant water. Instead of cell wall, they
have a protein rich layer called _____(a)________which makes their body flexible. They have
_____(b)______flagella; (a) & (b) are respectively.
1. (a) Pellicle (b) One
2. (a) Pellicle, (b) Three
3. (a) Gelatinous sheath, (b) Two
4. (a)Pellicle (b) Two
What is absent in Euglenoids?
| 1. | Two flagella, a short and a long one. |
| 2. | Pellicle, a protein-rich layer. |
| 3. | Pigments identical to those present in higher plants. |
| 4. | Cell wall with stiff cellulose plates. |
Match the following and choose the correct combination from the options given –
|
Column I (Group Protista) |
Column II (Example) |
||
|
A. |
Chrysophytes |
i. |
Paramaecium |
|
B. |
Dinoflagellates |
ii. |
Euglena |
|
C. |
Euglenoids |
iii. |
Gonyaulax |
|
D. |
Protozoans |
iv. |
Diatoms |
1. A - i, B - iii, C - ii, D - iv
2. A - ii, B - iv, C - iii, D - i
3. A - iv, B - ii, C - iii, D - i
4. A - iv, B - iii, C - ii, D - i
Euglenoids do not possess this feature-
| 1. | Always photosynthetic |
| 2. | Pigments like higher plants |
| 3. | Pellicle provides flexibility |
| 4. | Found in stagnant water |
| List-I (Group) | List-II (Example) | ||
| A. | Chrysophytes | I. | Gonyaulax |
| B. | Dinoflagellates | II. | Diatoms |
| C. | Euglenoids | III. | Euglena |
| D. | Red algae | IV. | Polysiphonia |