Compare and contrast rods and cones?

Answer 1

The main difference between rod cells and cone cells is that the rod cell is responsible for detecting the dim lights only with black and white, and the cone cell is responsible for detecting the bright lights with colors. Also in retina, there are more rod cells than the cone cells. thirdly, defect in rods causes night blindness and defect in cones causes color blindness.

Answer 2

The main differences betwen rod and cone cells are their sensitivity and visual acquity.

Rod cells are highly senstive. They can respond to low light intensities and hence allow us to see at night, although only in black and white. This is due to retinal convergence, this is where many rod cells share a bipolar cell, which is connected to a sensory neurone. In order for a generator potential to be produced rhodopsin, the photochemical pigment must be broken down. Due to summation of the rod cells, this threshold is overcome and hence a generator potential is produced, a nerve impulse is hence sent to the brain via the optic nerve and the light stimulus is detected.

Cone cells have high visual acquity (accurateness). This is because each cone cell is connected to its own bipolar cell and hence its own sensory neurone. Hence when one cone cell is stimulated and iodopsin (photochemical pigment) is broken down, a generator potential is produced. Therefore each cone cell that is stimulated sends a nerve impulse to the brain and hence separate stimuli can be detected.

Answer 3

Rods detect Images in Black, White, and shades of Gray. They are activated in Low Light and in Darkness. Cones detect the entire COLOR spectrum,

and are activated in brighter Light, such as Day light or Room light.

When you are going from a Dark Environment to a Light one OR a Lighted room to a Dark room (or when you turn off the Room light) and you are temporarily "Blind": This happens when your Eyes are TRANSITIONING from Cones to Rods or vice versa.

Answer 4

Both rods and cones are types of photoreceptor cells in the eye, but they have different functions. Rods are more sensitive to low light conditions and are responsible for night vision, while cones work best in bright light conditions and are responsible for color vision. Cones are concentrated in the central part of the retina, while rods are more abundant in the periphery.

Answer 5

You do it by making a Venn Diagram

Sincerely,

King Author from Camelot

Answer 6

Rod cells are sensitive to dim light. Cone cells enable you to see colors

Answer 7

Cones are used to detect colour while rods are used to detect light and dark or black and white. You have lots more rods than cones.