MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Desmids belong to ________ |
| A. | Dianoflagellates |
| B. | Chrysophytes |
| C. | Euglenoids |
| D. | Protozoans |
| Answer» C. Euglenoids | |
| 2. |
Protists are unicellular eukaryotes. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which among the following belong to plankton? |
| A. | Dianoflagellates |
| B. | Chrysophytes |
| C. | Euglenoids |
| D. | Protozoans |
| Answer» C. Euglenoids | |
| 4. |
Which among the following is responsible for red tide? |
| A. | Gonyaulax |
| B. | Udinium |
| C. | Noctiluca |
| D. | Golden algae |
| Answer» B. Udinium | |
| 5. |
What is red tide? |
| A. | Accumulation of cell wall deposits of red algae is called red tide |
| B. | Accumulation of red blood cells in water |
| C. | Coloration of water due to rapid multiplication of red dianoflagellates |
| D. | Spread of chrysophytes due to rapid reproduction |
| Answer» D. Spread of chrysophytes due to rapid reproduction | |
| 6. |
Dianoflagellates are plant like protists. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Dianoflagellates contain ________ |
| A. | two flagella with both being transversal |
| B. | two flagella with both being longitudinal |
| C. | two flagella with lone being longitudinal and other being transversal |
| D. | three flagella with one being along x-axis, other being along y-axis and the third one being along z-axis |
| Answer» D. three flagella with one being along x-axis, other being along y-axis and the third one being along z-axis | |
| 8. |
Cell wall in dianoflagelllates contain _______ |
| A. | Chitin |
| B. | Cortex |
| C. | Silica |
| D. | Pectin |
| Answer» C. Silica | |
| 9. |
Chrysophytes contain chlorophyll or carotene or xanthophyll in them. Their cell wall is rigid and is made up of chitin. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Diatoms store food as _______ |
| A. | Starch |
| B. | Glucose |
| C. | Oil |
| D. | Fructose |
| Answer» D. Fructose | |
| 11. |
Diatomaceous earth can be used as a pest control because _________ |
| A. | it is porous |
| B. | it contains silica which is poisonous for pests when eaten and therefore they die |
| C. | it snatches out lipids from the outermost waxy layer of pests called cuticle and makes them dry which results in their death |
| D. | it acts as anesthesia when given in minor quantities but pests die when large quantities are in taken |
| Answer» D. it acts as anesthesia when given in minor quantities but pests die when large quantities are in taken | |
| 12. |
Cell wall in diatoms is made of _______ |
| A. | Chitin |
| B. | Pectin |
| C. | Silica |
| D. | Cellulose |
| Answer» D. Cellulose | |
| 13. |
Diatoms are grouped under _________ |
| A. | Chrysophytes |
| B. | Protozoans |
| C. | Dianoflagelletes |
| D. | Euglenoids |
| Answer» B. Protozoans | |
| 14. |
Which among the following comprises of animal like protists? |
| A. | Protozoans |
| B. | Chrysophytes |
| C. | Slime molds |
| D. | Dianoflagellates |
| Answer» B. Chrysophytes | |
| 15. |
Protists survive in ________ |
| A. | dry desert |
| B. | aquatic regions |
| C. | dry mountains |
| D. | hot hills |
| Answer» C. dry mountains | |