Which of the following is correct about chrysophytes?
Found in fresh and marine water.
Microscopic plankton.
Cell walls are embedded with only.
Most of them are photosynthetic.
Important Questions on Biological Classification
The given statements describe a group of organisms. Which of the following group is referred here ?
(i) Instead of a cell wall they have a protein rich pellicle making their body flexible
(ii) They have flagella, a short and a long one
(iii) They show mixotroplic nutrition
(iv) They are connecting link between plants and animals
slide Unicellular, two well-defined nuclei, ciliated, without a cell wall
slide Unicellular, chloroplast, one nucleus, biflagellated, with a cell wall
slide Unicellular, one nucleus, non-flagellate, with a cell wall
The organisms likely to be present on the slides and respectively, are
Assertion (A): Euglenoids have a flexible body.
Reason (R): They have a protein rich layer called pellicle, which makes their body flexible.
Which of the following is true?
|
List - I Organism |
List - II Number of Flagella |
||
| (a) | Trypanosoma | (i) | Many |
| (b) | Euglena | (ii) | |
| (c) | Giardia | (iii) | |
| (d) | Trichonympha | (iv) |
The correct answer is
Match the following
| Type of Flagellum | Example | ||
| A) | Stichonematic | I) | Cryptomonas |
| B) | Pantonematic | II) | Astasia |
| C) | Anematic | III) | Chlamydomonas |
| D) | Acronematic | IV) | Monas |
| V) | Urceolus | ||
The correct match is:
Match the following related to sexual reproduction in protozoa ?
| List I | List II | ||
| (i) | Hologamy | (a) | Plasmodium |
| (ii) | Amphimixis | (b) | Monocystis |
| (iii) | Anisogamy | (c) | Trichonympha |
| (iv) | Isogamy | (d) | Union of pronuclei of the gamets |
