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. |
How many types of photoreceptor cells are present in the retina? |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | Five |
| Answer» B. Three | |
| 2. |
How many layers of neural cells are present in the retina? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 3. |
The diameter of the pupil is regulated by which of the following? |
| A. | Muscle fibres of the iris |
| B. | Sclera |
| C. | Choroid layer |
| D. | Muscle fibres of the lens |
| Answer» B. Sclera | |
| 4. |
Which of the following layer forms the ciliary body? |
| A. | Sclera |
| B. | Cornea |
| C. | Choroid layer |
| D. | Retina |
| Answer» D. Retina | |
| 5. |
Where are our eyes located? |
| A. | Zygomatic cavity |
| B. | Vomer cavity |
| C. | Orbits |
| D. | Sphenoid cavity |
| Answer» D. Sphenoid cavity | |
| 6. |
Both nose and tongue detect dissolved chemicals. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following has the gustatory receptors? |
| A. | Nose |
| B. | Tongue |
| C. | Eyes |
| D. | Skin |
| Answer» E. | |
| 8. |
The olfactory epithelium is the extension of which of the following? |
| A. | Hypothalamus |
| B. | Pituitary gland |
| C. | Association areas |
| D. | Limbic system |
| Answer» E. | |
| 9. |
The olfactory epithelium consists of how many cells? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 10. |
In which of the following, olfactory receptors are present? |
| A. | Nose |
| B. | Eyes |
| C. | Throat |
| D. | Ears |
| Answer» B. Eyes | |
| 11. |
Which of the following is not a function of sensory organs? |
| A. | Detect all the changes in the environment |
| B. | Send appropriate signals to CNS |
| C. | Analysis of signals |
| D. | Receive signals |
| Answer» D. Receive signals | |
| 12. |
Which of the following forms a reflex arc? |
| A. | Organ and tissue |
| B. | Cells and neurons involved |
| C. | Effort and load |
| D. | Stimulus and response |
| Answer» E. | |
| 13. |
In a reflex action, the efferent neurons receive a signal from the CNS. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
What is a reflex action? |
| A. | Action that flexes the body |
| B. | Involuntary action in response to a peripheral nervous stimulation |
| C. | Voluntary action in response to a peripheral nervous stimulation |
| D. | Voluntary action that flexes our body |
| Answer» C. Voluntary action in response to a peripheral nervous stimulation | |
| 15. |
Which of the following is not stimulation for reflex action? |
| A. | Hot object |
| B. | Happiness |
| C. | Cold object |
| D. | Scary animals |
| Answer» C. Cold object | |