MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the feedback regulation of an enzyme, the end product binds to the |
| A. | active site of the enzyme. |
| B. | allosteric site of the enzyme. |
| C. | enzyme-substrate complex. |
| D. | substrate. |
| Answer» C. enzyme-substrate complex. | |
| 2. |
Pyramid of energy in a forest ecosystem is |
| A. | always inverted. |
| B. | dumb-bell shaped. |
| C. | spindle shaped. |
| D. | always upright. |
| Answer» E. | |
| 3. |
Which one of the following organelles is enclosed by a single membrane ? |
| A. | Ribosome |
| B. | Mitochondria |
| C. | Endoplasmic reticulum |
| D. | Centrosome |
| Answer» D. Centrosome | |
| 4. |
Which one of the following statements is CORRECT for Mycoplasma ? |
| A. | Their cells are of definite shape. |
| B. | They are resistant to lysis by osmotic shock. |
| C. | Their growth is not inhibited by penicillin. |
| D. | They are nonpathogenic to human. |
| Answer» D. They are nonpathogenic to human. | |
| 5. |
Which one of the following protozoan parasites belongs to the phylum Apicomplexa ? |
| A. | Toxoplasma gondii |
| B. | Leishmania donovani |
| C. | Entamoeba histolytica |
| D. | Trichomonas vaginalis |
| Answer» B. Leishmania donovani | |