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प्रश्न
______ is the structural and functional unit of living organisms.
उत्तर
Cell is the structural and functional unit of living organisms.
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संबंधित प्रश्न
What changes take place in the shape of eye-lens:
when the eye is focused on a near object?
Which parts of the eye cause rays of light to converge on the retina?
Mention if the following statement is true (T) or false (F) Give reason.
yellow spot of the retina is the region of colour vision
With reference to the functioning of the eye, answer the question that follow:
What is the shape of the lens during near vision?
Choose the correct answer.
Which one is the photoreceptor _____________
State the Function:
Aqueous humour
Draw a scientifically correct labelled diagram of a human eye and answer the questions based on it:
- Name the type of lens in the human eye.
- Name the screen at which the maximum amount of incident light is refracted?
- State the nature of the image formed of the object on the screen inside the eye.
The transparent membrane that keeps the eye moist is ______.
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Path way of light |
| 2. Pupil | b. Far point comes closer |
| 3. Ciliary muscles | c. near point moves away |
| 4. Myopia | d. Screen of the eye |
| 5. Hypermetropia | e. Power of accommodation |
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Pathway of light |
| 2. Pupil | b. Far point comes closer |
| 3. Ciliary muscles | c. near point moves away |
| 4. Myopia | d. Screen of the eye |
| 5. Hypermetropia | f. Power of accommodation |
