The evidence that substantiates Young’s hypothesis. Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

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Answer 1

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Chapter 33, Problem 22RQ

Summary Introduction

To explain: The evidence that substantiates Young’s hypothesis.

Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

Summary Introduction

To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

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You are watching the stars at night, and you never seem to be looking at the right spot to catch the brightest meteors. Which of the following might explain this? a)Your fovea contains mostly cones; thus you see dim light especially well when looking right at it. b)Your peripheral retina contains more rods, which are more sensitive to dim light than cones; thus objects in your peripheral vision appear brighter in dim light situations. c)Detection of light depends mostly on its color rather than intensity; thus cones play a larger role in detection of light in dim light situations. d) all of the above. ( well explain the correct answer and type answer).

Which statement about the events of photoreception is false? a) as a rod cell hyperpolarizes, its release of neurotransmitter increases b) there is more Na+ entry into a rod cell in the dark than in the light c) bipolar cells release more neurotransmitter in the light than in the dark d) as a bipolar cell depolarizes, its release of neurotransmitter increases e) when a rod cell releases neurotransmitter the bipolar cell it synapses with hyperpolarizes

We have three types of cones in the retina. Explain how we can see a large range of colors with only three types of cones:

Answer 2

Question

Chapter 33, Problem 22RQ

Summary Introduction

To explain: The evidence that substantiates Young’s hypothesis.

Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

Summary Introduction

To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

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Answer 3

Question

Chapter 33, Problem 22RQ

Summary Introduction

To explain: The evidence that substantiates Young’s hypothesis.

Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

Summary Introduction

To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

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Answer 4

Question

Chapter 33, Problem 22RQ

Summary Introduction

To explain: The evidence that substantiates Young’s hypothesis.

Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

Summary Introduction

To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

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Answer 5

Chapter 33, Problem 22RQ

Summary Introduction

To explain: The evidence that substantiates Young’s hypothesis.

Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

Summary Introduction

To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

Answer 6

Chapter 33, Problem 22RQ

Summary Introduction

To explain: The evidence that substantiates Young’s hypothesis.

Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

Answer 7

Chapter 33, Problem 22RQ

Summary Introduction

To explain: The evidence that substantiates Young’s hypothesis.

Introduction: The cones and rods are the photoreceptors. The cones, as well as rods, contain rhodopsin (light-sensitive pigments). In each human eye, there are around 1 million cones and 125 million rods. The function of the cones is to perceive color.

Answer 8

Summary Introduction

To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

Answer 9

Summary Introduction

To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

Answer 10

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Answer 11

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Answer 12

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Answer 13

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Solution Summary: The author explains how Young hypothesized that one can see color with the help of three types of photoreceptors.

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To explain: How one can perceive any color in the visible spectrum as only three classes of color cones are present in the retina.

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