Copy the diagram of the front of the eye into your answer book and label the iris and the pupil - Leaving Cert Biology - Question (b) - 2008
Question (b)
Copy the diagram of the front of the eye into your answer book and label the iris and the pupil.
(i) Is the eye shown in the diagram above adapted for dim light or ... show full transcript
Worked Solution & Example Answer:Copy the diagram of the front of the eye into your answer book and label the iris and the pupil - Leaving Cert Biology - Question (b) - 2008
Step 1
Copy the diagram of the front of the eye and label the iris and the pupil
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Answer
Make sure to accurately replicate the diagram of the front of the eye in your answer book. Clearly label the iris (the colored part surrounding the pupil) and the pupil (the black circular opening in the center).
Step 2
Is the eye shown in the diagram above adapted for dim light or bright light? Explain your answer.
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Answer
The eye shown in the diagram is adapted for dim light. This is because the pupil, which is large, allows more light to enter the eye, enhancing visibility in low-light conditions.
Step 3
Where in the eye is the retina located?
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Answer
The retina is located at the back of the eye.
Step 4
Two types of cells that receive light are found in the retina. Name each of these.
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Answer
The two types of cells that receive light in the retina are rods and cones.
Step 5
Give one difference between the two types of cells that receive light.
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Answer
Rods are more numerous and detect black and white, thus functioning well in dim light, while cones are less numerous and detect colors, working primarily in bright light.
Step 6
What is the function of the optic nerve?
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Answer
The optic nerve carries visual information from the retina to the brain.
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