Question at position 14 In the context of the visual system, which of the following scenarios best illustrates the need for the functioning of rods in the retina?Shelby is window-shopping on her favorite street during the day.Marcus is trying to find his seat in the dark in a movie theater.Ray is reading under a bright light in the library.Andrew is watching football on the television in his living room.

Question

BlackTom AI · Accepted Answer

Question at position 14 In the context of the visual system, which of the following scenarios best illustrates the need for the functioning of rods in the retina?
Question text: Shelby is window-shopping on her favorite street during the day.Marcus is trying to find his seat in the dark in a movie theater.Ray is reading under a bright light in the library.Andrew is watching football on the television in his living room.
Answer options:
- Shelby is window-shopping on her favorite street during the day.
- Marcus is trying to find his seat in the dark in a movie theater.
- Ray is reading under a bright light in the library.
- Andrew is watching football on the television in his living room.

Option 1: Shelby is window-shopping on her favorite street during the day.
This scenario occurs in bright daylight, where cones are the primary photoreceptors active for color vision and fine detail. The rods are not essential here, since cone-mediated vision suffices for well-lit conditions. Misconception to avoid: assuming rods dominate all lighting levels; in daylight, cones handle most visual tasks.

Option 2: Marcus is trying to find his seat in the dark in a movie theater.
In near-total darkness, rods become the main photoreceptors because they are highly sensitive to low light and mediate peripheral and low-resolution vision. This scenario specifically requires rod function to detect shapes and movement when illumination is minimal. This is the scenario that best illustrates the need for rods.

Option 3: Ray is reading under a bright light in the library.
Reading under bright illumination relies on cones for high-acuity color vision and fine detail. Rods, which are more sensitive in dim light but provide less detail, are not needed in this well-lit setting. A common misunderstanding would be confusing rod contributions with tasks requiring sustained high-detail reading in light.

Option 4: Andrew is watching football on the television in his living room.
Watching TV in a typical indoor setting also relies heavily on cones for color and detail, with sufficient lighting. Rods do not play a special, essential role here, since the scene is not dark enough to demand high rod-mediated sensitivity. A pitfall here is overgeneralizing rod involvement to all visual tasks regardless of lighting.

In summary, among the options, the scenario set in the dark (Marcus in the movie theater) uniquely highlights the necessity of rod function for vision under low-light conditions, where cones cannot provide adequate sensitivity or detail.

类似问题

Plants perceive light to drive circadian rhythms based on which of the following:

Blank ______ are receptor cells contained in the retina and are useful in color perception, particularly in bright-light conditions.

In bright-light conditions, which receptors are more important for vision?

are receptor cells contained in the retina and are useful in color perception, particularly in bright light conditions.

are receptor cells contained in the retina and are useful in low-light conditions.

Photoreceptors

Question at position 13 Which of the followings statements is true of the rods in the eye's retina?They are insensitive to light.They are very useful for color vision.They are found in the fovea.They require a smaller amount of light to respond than the cones do.

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单