340418
Assertion : Owls move freely during night. Reason : They have large number of rods on their retina.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Seeing well in the dark is the major function of an owl's eyes. Eye size is very important for seeing at night. Because an owl's eyes are so large, they have a large surface area to collect light. The light hits specialised cells in the eye that help animals see in low light levels. These cells are called rod cells. Owls have many more rod cells than other animals. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
BIOXI21: NEURAL CONTROL AND COORDINATION
340420
Retinal cells involved in colour vision are
1 Cones
2 Rods
3 Neurons
4 Neuroglial cells
Explanation:
The daylight (photopic) vision and colour vision are functions of cones
BIOXI21: NEURAL CONTROL AND COORDINATION
340421
Which is the visible coloured portion of the eye?
1 Pupil
2 Lens
3 Iris
4 Ciliary body
Explanation:
Iris is the visible coloured portion of the eye.
BIOXI21: NEURAL CONTROL AND COORDINATION
340422
Cones are sensitive to
1 Dim light only
2 Bright light only
3 Both (1) & (2)
4 None of them
Explanation:
The daylight (photopic) vision and colour vision are functions of cones
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BIOXI21: NEURAL CONTROL AND COORDINATION
340418
Assertion : Owls move freely during night. Reason : They have large number of rods on their retina.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Seeing well in the dark is the major function of an owl's eyes. Eye size is very important for seeing at night. Because an owl's eyes are so large, they have a large surface area to collect light. The light hits specialised cells in the eye that help animals see in low light levels. These cells are called rod cells. Owls have many more rod cells than other animals. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
BIOXI21: NEURAL CONTROL AND COORDINATION
340420
Retinal cells involved in colour vision are
1 Cones
2 Rods
3 Neurons
4 Neuroglial cells
Explanation:
The daylight (photopic) vision and colour vision are functions of cones
BIOXI21: NEURAL CONTROL AND COORDINATION
340421
Which is the visible coloured portion of the eye?
1 Pupil
2 Lens
3 Iris
4 Ciliary body
Explanation:
Iris is the visible coloured portion of the eye.
BIOXI21: NEURAL CONTROL AND COORDINATION
340422
Cones are sensitive to
1 Dim light only
2 Bright light only
3 Both (1) & (2)
4 None of them
Explanation:
The daylight (photopic) vision and colour vision are functions of cones
340418
Assertion : Owls move freely during night. Reason : They have large number of rods on their retina.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Seeing well in the dark is the major function of an owl's eyes. Eye size is very important for seeing at night. Because an owl's eyes are so large, they have a large surface area to collect light. The light hits specialised cells in the eye that help animals see in low light levels. These cells are called rod cells. Owls have many more rod cells than other animals. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
BIOXI21: NEURAL CONTROL AND COORDINATION
340420
Retinal cells involved in colour vision are
1 Cones
2 Rods
3 Neurons
4 Neuroglial cells
Explanation:
The daylight (photopic) vision and colour vision are functions of cones
BIOXI21: NEURAL CONTROL AND COORDINATION
340421
Which is the visible coloured portion of the eye?
1 Pupil
2 Lens
3 Iris
4 Ciliary body
Explanation:
Iris is the visible coloured portion of the eye.
BIOXI21: NEURAL CONTROL AND COORDINATION
340422
Cones are sensitive to
1 Dim light only
2 Bright light only
3 Both (1) & (2)
4 None of them
Explanation:
The daylight (photopic) vision and colour vision are functions of cones
340418
Assertion : Owls move freely during night. Reason : They have large number of rods on their retina.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Seeing well in the dark is the major function of an owl's eyes. Eye size is very important for seeing at night. Because an owl's eyes are so large, they have a large surface area to collect light. The light hits specialised cells in the eye that help animals see in low light levels. These cells are called rod cells. Owls have many more rod cells than other animals. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
BIOXI21: NEURAL CONTROL AND COORDINATION
340420
Retinal cells involved in colour vision are
1 Cones
2 Rods
3 Neurons
4 Neuroglial cells
Explanation:
The daylight (photopic) vision and colour vision are functions of cones
BIOXI21: NEURAL CONTROL AND COORDINATION
340421
Which is the visible coloured portion of the eye?
1 Pupil
2 Lens
3 Iris
4 Ciliary body
Explanation:
Iris is the visible coloured portion of the eye.
BIOXI21: NEURAL CONTROL AND COORDINATION
340422
Cones are sensitive to
1 Dim light only
2 Bright light only
3 Both (1) & (2)
4 None of them
Explanation:
The daylight (photopic) vision and colour vision are functions of cones