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NewsELA: How our eyes make sense of light
By Jessica Yates
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Last updated 4 months ago
10 questions
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What is the first tough outer tissue that light passes through when entering the eyes?
Retina
Lens
Sclera
Cornea
What area of the eye contains millions of light-sensitive cells, especially concentrated in the fovea?
Lens
Iris
Cornea
Retina
Which cells on the retina are known as photoreceptors?
Rods and Cones
Bipolar Cells
Ganglion Cells
Melanopsin Cells
What type of light do cones respond to that passes through the lens and onto the fovea?
Red light
White light
Blue light
Green light
Cones come in three different types based on the colors they absorb best. What are these colors?
Cyan, Magenta, Yellow
Red, Green, Blue
Yellow, Orange, Purple
Black, White, Gray
In low light conditions, which type of cells in the retina are more sensitive to light than cones?
Ganglion Cells
Bipolar Cells
Rods
Cones
Where do the electrical signals triggered by photoreceptors in the eye travel to in the brain?
Cerebellum
Frontal Lobe
Frontal Lobe
Occipital Cortex
What is the role of melanopsin ganglion cells in the eyes?
Regulate the body's biological clock
Control the size of the pupil
Produce images in shades of grey
Help with color vision
Which type of cells work primarily in bright light and are responsible for color vision?
Bipolar Cells
Rod Cells
Cone Cells
Melanopsin Ganglion Cells
How do rods and cones contribute to our perception of color according to the text?
Rods fill in visual details with color
Cones produce images in black-and-white
Rods provide color vision
Cones fill in the lines with colors