Which of the following statements accurately describes the characteristics of rods and cones invision?A) Rods are responsible for chromatic vision and are mostly concentrated at the fovea.B) Cones are responsible for monochromatic vision and are present everywhere on the retinaexcept the fovea.C) Rods are primarily located at the fovea and are responsible for both monochromatic andchromatic vision.D) Cones are mainly located in the blind spot and are responsible for monochromatic vision.E) Rods are primarily responsible for monochromatic vision and are present everywhere on theretina except the blind spot and fovea
Question
Which of the following statements accurately describes the characteristics of rods and cones invision?A) Rods are responsible for chromatic vision and are mostly concentrated at the fovea.B) Cones are responsible for monochromatic vision and are present everywhere on the retinaexcept the fovea.C) Rods are primarily located at the fovea and are responsible for both monochromatic andchromatic vision.D) Cones are mainly located in the blind spot and are responsible for monochromatic vision.E) Rods are primarily responsible for monochromatic vision and are present everywhere on theretina except the blind spot and fovea
Solution
The correct answer is E) Rods are primarily responsible for monochromatic vision and are present everywhere on the retina except the blind spot and fovea.
Here's why:
Rods and cones are two types of photoreceptor cells found in the retina of the eyes. They are responsible for converting light into signals that can be interpreted by the brain to form visual images.
Rods are primarily responsible for vision in low light conditions, which is often referred to as scotopic or night-time vision. They do not mediate color vision, and thus are considered to be monochromatic. Rods are not present in the fovea (the central point of the retina where visual acuity is highest) and the blind spot (where the optic nerve exits the retina).
On the other hand, cones are responsible for color vision and function best in relatively bright light conditions. They are most densely concentrated in the fovea. Cones are not involved in monochromatic vision, so options B and D are incorrect.
Option A is incorrect because rods are not responsible for chromatic vision and they are not concentrated at the fovea.
Option C is incorrect because rods are not primarily located at the fovea and they are not responsible for chromatic vision.
Therefore, the only statement that accurately describes the characteristics of rods and cones in vision is option E.
Similar Questions
Which statement is wrong?a)Rods present everywhere on the retina except bling spot and foveab)Cones are more sensitive to light than rodsc)Cones present mostly everywhere on the retina except the blind spot, mostly at the fovead)Rods are for monochromatic visione)Cones are dor chromatic vision
What is true about rods?a) Rods are for chromatic vision.b) Rods are for monochromatic vision.c) Mostly present at the fovead) Works best in well-lit environmente) Number of rods in the retina is much less than cones.
Which of the following structure is responsible for monochromatic vision?A) ScleraB) RetinaC) ConesD) RodsE) Pupil
Which of the following is true?a) There are no rods on the fovea.b) Cones work better under low light.c) The blind spot has a lot of cones.d) Isomerization does not influence photoreceptor membrane potentials.e) Fovea has no photoreceptors.f) Visual pigments in rods are called photopsin
Which type of photoreceptor cells are responsible for monochromatic vision?a)Rodsb)Conesc)Bipolar cellsd)All of theme)Neither of them
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