The diagram shows a section through the human eye - Leaving Cert Biology - Question 15 - 2020
Question 15
The diagram shows a section through the human eye.
(i) In your answer book, state which letter represents each of the following parts:
1. Sclera
2. Lens
3. Optic Ne... show full transcript
Worked Solution & Example Answer:The diagram shows a section through the human eye - Leaving Cert Biology - Question 15 - 2020
Step 1
State which letter represents each part:
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Answer
Sclera - D
Lens - A
Optic Nerve - B
Retina - C
Step 2
Explain the role of the pupil in the eye.
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Answer
The pupil regulates the amount of light that enters the eye. It constricts in bright light to allow less light in and dilates in low light to allow more light, ensuring optimal vision.
Step 3
Name the two types of receptor cells located in the retina that respond to light.
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Answer
The two types of receptor cells are:
Rods
Cones
Step 4
Name a disorder of either the eye or the ear and give a corrective measure for the stated disorder.
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Answer
A common disorder is myopia (short-sightedness). A corrective measure is the use of corrective lenses or glasses to improve vision.
Step 5
To which organ is the structure labelled C connected?
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Answer
Structure C is connected to the brain (specifically the CNS/cerebrum).
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