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Q. No.The optic nerve leaves the eye at a particular point. Read the following about this point.
(a) Abundant photoreceptor cells present
(b) Point is slightly above the posterior pole of the eyeball
(c) Macula lutea is present lateral to this point.
(d) It is medial to the posterior pole of the eye ball.
Choose the option which has all the correct ones from above.
1. a, b only
2. b, c only
3. a, c, d only
4. b, c, d only
Subtopic: Human Eye (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
63%
From NCERT
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Assertion (A): Parasympathetic and sympathetic neural systems have antagonistic effects on the organs.
Reason (R): Neurotrasmitters released by the axons of sympathetic and parasympathetic neural systems are of different nature.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Neurotrasmitters released by the axons of sympathetic and parasympathetic neural systems are of different nature.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Autonomic Nervous System (OLD NCERT) |
72%
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Assertion (A): Fovea is the point where visual acuity (resolution) is maximum.
Reason (R): Fovea is a thinned-out portion of sclera.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Fovea is a thinned-out portion of sclera.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Basic Anatomy of Human Eye (OLD NCERT) |
70%
From NCERT
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Assertion (A): The choroid layer is thin over the posterior one-third of eye ball and is thick in the rest two-third part.
Reason (R): Choroid is the outermost layer of eye ball.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Choroid is the outermost layer of eye ball.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Basic Anatomy of Human Eye (OLD NCERT) |
66%
From NCERT
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Assertion (A): No image formation occurs at retina where the optic nerves leaves the eye.
Reason (R): Photoreceptors cells are not present in this region
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Photoreceptors cells are not present in this region
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Basic Anatomy of Human Eye (OLD NCERT) |
85%
From NCERT
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Assertion (A): A real and inverted image is obtained on the retina.
Reason (R): Lens of eye is naturally biconcave
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Lens of eye is naturally biconcave
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Huma Eye: Accommodation (OLD NCERT) |
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Assertion (A): Tympanic membrane separates the external ear from the middle ear.
Reason (R): Tympanic membrane is composed of connective tissues.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Tympanic membrane is composed of connective tissues.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Outer & Middle Ear (OLD NCERT) |
76%
From NCERT
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Read the following statements and choose the correct option:
A. Owls move freely during night.
B. They have large number of rods on their retina.
1. Both the statements A and B are correct and B is the correct explanation of A
2. Both the statements A and B are correct but B is not the correct explanation of A
3. Statement A is correct and B incorrect
4. Statement B is correct and A incorrect
A. Owls move freely during night.
B. They have large number of rods on their retina.
1. Both the statements A and B are correct and B is the correct explanation of A
2. Both the statements A and B are correct but B is not the correct explanation of A
3. Statement A is correct and B incorrect
4. Statement B is correct and A incorrect
Subtopic: Huma Eye: Accommodation (OLD NCERT) |
86%
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Assertion (A): Photoreceptors are not present in the blind spot of the eye.
Reason (R): Blind spot is situated at a point medial to and slightly above the posterior pole of the eyeball.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): Blind spot is situated at a point medial to and slightly above the posterior pole of the eyeball.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Basic Anatomy of Human Eye (OLD NCERT) |
67%
From NCERT
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Match List I with List II with respect to human eye.
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | Fovea | I | Visible coloured portion of eye that regulates diameter of pupil. |
| B. | Iris | II. | External layer of eye formed of dense connective tissue. |
| C. | Blind spot | III. | Point of greatest visual acuity or resolution. |
| D. | Sclera | IV. | Point where optic nerve leaves the eyeball and photoreceptor cells are absent. |
Choose the correct answer from the options given below:
| Options: | A | B | C | D |
| 1. | II | I | III | IV |
| 2. | III | I | IV | II |
| 3. | IV | III | II | I |
| 4. | I | IV | III | II |
Subtopic: Human Eye (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
78%
From NCERT
NEET - 2023
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