How The Eye Works

8 Questions | By Schoolgabby | Last updated: Mar 22, 2022 | Total Attempts: 407

Questions

Settings

Create your own Quiz

Questions and Answers

1.

There are many parts to the eye, all of which have their different functions.-The lens finely focuses the light-The pupil controls how much light is let into the eye-The retina contains the rods and cones-The rods let you see black and white-The cones let you see colour-The vitreous humour is a jelly-like substance that holds the shape of the eye-The iris controls the size of the pupil-The optic nerve joins the eye to the brain, and transmits the electrical signals-The blind spot is the spot where there are no rods or cones, as it is where the optic nerve connects to the eye-The cornea is a thin layer of protective cells that also roughly focus the light-The ciliary muscles control the shape of the lens
2.

The iris...
- A.
  
  Detects colours.
- B.
  
  Controls the size of the pupil.
- C.
  
  Controls the shape of the lens.
- D.
  
  Finely focuses the image.
3.

What does the cornea do?
- A.
  
  Protects the eye with transparent cells, and also roughly focuses the light.
- B.
  
  Roughly focuses the light.
- C.
  
  Jumbles up the light rays to be reassembled in the iris, and protects the eye with transparent cells.
- D.
  
  Protects the eye with transparent cells.
4.

The pupil...
- A.
  
  Controls how far away you can see in focus.
- B.
  
  Abosrbs light.
- C.
  
  Lets you see black (and white).
- D.
  
  Controls the amount of light entering the eye.
5.

What do rods do?
- A.
  
  Make black and white vision possible.
- B.
  
  Make colour vision possible.
- C.
  
  Make the image flip around.
6.

Cones let you see in colour.
- A.
  
  True
- B.
  
  False
7.

The optic nerve sends the electrical signals to the brain.
- A.
  
  False
- B.
  
  True
8.

The ciliary muscles control...
- A.
  
  The amount of light going into the eye
- B.
  
  The rods
- C.
  
  The lens shape
- D.
  
  The cones