MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The component of a living cell affected by the pollutant \[S{{O}_{2}}\] is [CPMT 1985] |
| A. | Nucleus |
| B. | All cell membrane system |
| C. | Cell wall |
| D. | Plasmodesmata |
| Answer» C. Cell wall | |
| 2. |
How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues [CBSE PMT 1998] |
| A. | By chaning oxygen into carbon dioxide |
| B. | By destroying the haemoglobin |
| C. | By forming a stable compound with haemoglobin |
| D. | By obstructing the reaction of oxygen with haemoglobin |
| Answer» D. By obstructing the reaction of oxygen with haemoglobin | |
| 3. |
The physiological capacity of a population to produce offsprings is known as [CBSE PMT 2002] |
| A. | Environmental resistance |
| B. | Carrying capacity |
| C. | Biotic potential |
| D. | None |
| Answer» D. None | |
| 4. |
The most important component of the oral contraceptive pills is [CBSE PMT 1998] |
| A. | Progesterone |
| B. | Growth hormone |
| C. | Thyroxin |
| D. | Luteinizing hormone |
| Answer» B. Growth hormone | |
| 5. |
July 11 is observed as [BHU 2002; AIIMS 2003] |
| A. | World population day |
| B. | No tobacco day |
| C. | World environment day |
| D. | World health day |
| Answer» B. No tobacco day | |