Advertisements
Advertisements
Question
Mention, if the following statement is True or False
Cones are the receptor cells in the retina of the eye sensitive to dim light.
Options
True
False
Solution
False
Correct Statement: Cones are the receptor cells in the retina of the eye sensitive to bright light
APPEARS IN
RELATED QUESTIONS
Write the function of the following part of the human eye:- iris
Name the part of the eye:
on which the image is formed.
What do the ciliary muscles do when you are focusing on a nearby object?
A person walking in a dark corridor enters into a brightly lit room:
State the effect on the pupil of the eye.
What happens to the size of pupil of our eye (i) in dim light (ii) in bright light?
What shape are your eye-lenses:
when you look at a distant tree?
An object is moved closer to an eye. What changes must take place in the eye in order to keep the image in sharp focus?
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons can donate eyes?
In what two ways is the yellow spot different from the blind spot?
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Draw a diagram of the human eye as seen in a vertical section and label the parts which suit the following descriptions relating to the:
(i) photosensitive layer of the eye.
(ii) structure which is responsible for holding the eye lens in its position.
(iii) structure which maintains the shape of the eyeball and the area of no vision.
(iv) anterior chamber seen in front of the eye lens.
(v) outermost transparent layer seen in front of the eyeball.
State the Function:
Cornea
Complete the following sentence with appropriate Word
The photoreceptor cells of the retina sensitive to colour are:
Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia.
The following figure show the change in the shape of the lens while seeing distant and nearby objects. Complete the figures by correctly labelling the diagram.
Which of the following statements is correct regarding rods and cones in the human eye?
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 accomadation |
Name the following:
The layer of the wall of the eye-ball that corresponds to the black lining of the box of a camera
The figure given below refers to the vertical section of the eye of a mammal. Study the figure carefully and answer the following questions.
 |
- Label the guidelines shown as 1 to 10.
- Write one important role of parts shown as 3 and 7.
- Write one structural difference between the parts shown as 9 and 10.
- Mention one functional difference between the parts shown as 6 and 8.
