F5D Biology Home Assignment Week 4
Explore the Intricacies of the Human Eye
Welcome to our engaging biology quiz focused on the fascinating structures and fun
By participating in this quiz, you will:
- Enhance your understanding of eye physiology
- Learn about common eye defects and their corrections
- Interact with visual data through graphs and illustrations
Refer to the graph below, which shows the changes in the tension of suspensory ligament of a student while he was observing a butterfly during 0–4 seconds, the butterfly
Moved towards him for the first 2 seconds, then stayed still for 2 seconds.
Stayed still for 2 seconds, then moved away from him for 2 seconds.
Moved towards him for the first 2 seconds, then moved away from him for 2 seconds.
Stayed still for 2 seconds, then moved towards him for 2 seconds
Refer to the graph below, which shows the changes in the tension of suspensory ligament of a student while he was observing a butterfly during 4-8 seconds, the thickness of the lens
Remains unchanged.
Decreases.
Increases.
Decreases for 2 seconds, then increases for 2 seconds.
Which of the following statements about the eye structures is incorrect?
The vitreous humour is in the posterior chamber of the eye.
The eyeball is attached to the orbit by muscles.
The conjunctiva secretes tears.
The choroid is richly supplied with blood vessels.
Which of the following statements about the eye structures is correct?
There is blood supply to the cornea.
Choroid contains visual purple which absorbs light and prevents reflection of light within the eye.
The iris muscle controls the amount of light entering the eye.
The suspensory ligaments contract and relax to regulate the thickness of the lens.
Which of the following statements about the eye structures is incorrect?
Structure A is made up of living cells without nuclei.
Structure B can refract light onto the retina.
Structure C possesses a high density of rod cells but no cone cells.
Structure D transmits nerve impulses from the retina to the cerebrum.
Which of the following will happen when a person leaves a dark room and enters a bright area?
In the iris, the circular muscles relax, while the radial muscles contract.
In the iris, the circular muscles contract, while the radial muscles relax.
The ciliary muscles contract.
The ciliary muscles relax.
Which of the following statements about the eye defects is correct?
Short sight occurs in young people only.
Short sight can be corrected by wearing spectacles with convex lenses.
Colour blindness can be prevented by taking in adequate vitamin A.
The light rays from near objects are focused behind the retina in long-sighted people.
Which of the following combinations correctly identify structures P to S?
P=rod cells, Q=cone cells, R=blind spot, S=yellow spot
A=cone cells, Q=rod cells, R=yellow spot, S=blind spot
P=rod cells, Q=cone cells, R=yellow spot, S=blind spot
P=cone cells, Q=rod cells, R=blind spot, S=yellow spot
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