EBK WHAT IS LIFE? A GUIDE TO BIOLOGY WI
4th Edition
ISBN: 8220106821152
Author: PHELAN
Publisher: YUZU
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Chapter 24, Problem 7SA
Summary Introduction
To analyze:
Why some insects can see wavelengths of light in the ultraviolet spectrum that are invisible to humans.
Introduction:
The photoreceptors in the eyes are the structures responsible for the ability to see different wavelengths of light.
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EBK WHAT IS LIFE? A GUIDE TO BIOLOGY WI
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- A genetic abnormality leaves a person unable to perceive light with a wavelength less than 450 nm. What type of structure is likely been effected? O rod O blue cone O red cone O all of the abovearrow_forwardFigure 36.18 Which of the following statements about the human eye is false? Rods detect color, while cones detect only shades of gray. When light enters the retina, it passes the ganglion cells and bipolar cells before reaching photoreceptors at the rear of the eye. The iris adjusts the amount of light coming into the eye. The cornea is a protective layer on the front of the eye.arrow_forwardCan human ever directly see a photon?arrow_forward
- If an object appears red, which of the following light colors is transmitted or reflected (NOT absorbed)? Violet Red Green Blue Chartreusearrow_forwardHuman color vision is "produced" by the nervous system based on how three different cone receptors interact with photons oflight in the eye. These three different types of cones interact with photons of different frequency light, as indicated in the following chart:arrow_forwardMs. Brundage buys a fancy new plant, and brings it home to replace her plastic ones. The action spectrum of the plant's leaves is found in Figure 1 below. Unfortunately it is winter and there is very little natural light. The local hardware store offers her two lighting choices: halogen light or cool white LED. After a little research, she discovers the spectrum of each type of light, as shown in Figure 2. a) Which type of light should Ms. Brundage purchase? Explain. b)The salesperson assures her that her plant most likely will be able to grow under either type of light. Given what you know about plant pigments and photosynthesis, how could this be possible? Explain.arrow_forward
- Which the correct order of passing information of light stimuli among cells in the retina? ganglion cell → bipolar cells → photoreceptor photoreceptor → amacrine cells → ganglion cell horizontal cell photoreceptor →ganglion cell Ophotoreceptor → bipolar cells → ganglion cellarrow_forwardThe order in which the cells in the eye process light is __________. A) photoreceptors; ganglion cells; bipolar cells B) ganglion cells; bipolar cells; photoreceptors C) photoreceptors; bipolar cells; ganglion cells D) bipolar cells; photoreceptors; ganglion cellsarrow_forwardWhat color of light results from the addition of cyan light and red light? green blue white magentaarrow_forward
- What is vision? Why is vision important for life on earth?arrow_forwardkey function of rod photoreceptors is to: detect colors detect fine details in the visual field. detect light under low levels of illumination. detect light under high levels of illumination. During phototransduction, transducin activates phosphodiesterase (PDE) that converts: GTP to GDP CGMP to GMP retinal cis to retinal trans retinal trans to retinal cisarrow_forwardPhotopic vision involves 1) Vision at night 2)Rods and cones working 3) poor illumination 4) all of the optionsarrow_forward
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