The light-sensitive inner surface of the eye, containing the rods and cones, is the ______________?

Related Mcqs:

1. Waqas looked directly into a very bright light and damaged his retina. The ophthalmologist has told him that he has sustained massive damage to his rods but for the most part his cones have not been affected. One change that you could predict for Waqas’ vision is that he will now have:

   A. more accurate depth perception
   B. poor vision in bright illumination
   C. poor vision in low illumination
   D. poor peripheral vision

2. Petra locked directly into a very bright light and damaged her retina. The ophthalmologist has told her that she has sustained massive damage to her cones, but for the most part her rods have not been affected. One change that you could predict for Petra’s vision is that she will now have:

   A. Poor vision in bright light
   B. No color vision
   C. Poor vision in low illumination
   D. More accurate depth perception

3. According to the Young-Helmholtz theory, when both red and green sensitive cones are stimulated simultaneously, a person should see:

   A. Green
   B. Orange
   C. Red
   D. Yellow

4. Kim is trying to thread a needle, but the light is fairly dim. Due to the lack of light, the part of her eye that will help most in threading the needle is ________________?

   A. cones
   B. rods
   C. lens
   D. cornea

5. In bright light, the iris_______and the pupil________to control the amount of light entering the eye.

   A. Expands; constricts
   B. Constricts; expands
   C. Focuses; constricts
   D. Constricts; focuses

6. The receptor of the eye that functions best in dim light is the ______________?

   A. fovea
   B. ganglion
   C. cone
   D. rod

7. The muscle fibers of the iris can increase or decrease the amount of light entering the eye by expanding or contracting the ______________?

   A. lens
   B. cornea
   C. pupil
   D. fovea

8. The net difference in charge between the inner and outer surface of a non conducting neuron is called:

   A. Membrane potential
   B. Electrical potential
   C. Resting membrane potential
   D. Action potential

9. The potential during which the inner membrane surface becomes more positive than the outside is called:

   A. Resting membrane potential
   B. Threshold stimulus
   C. Active membrane potential
   D. None of these

10. A psychologist watches the rapid eye movements of sleeping subjects and wakes them to find they report that they were dreaming. She concludes that dreams are linked to rapid eye movement. this conclusion is based on:

    A. pure speculation
    B. direct observation
    C. deduction from direct observation
    D. prior prediction