In the human eye, the visual acuity is highest at:

1. Macula lutea

2. Optic disc

3. Fovea centralis

4. Optic chiasma

Which one of the following statements is not correct?

1. Retinal is the light absorbing portion of visual photopigments 

2. In retina the rods have the photopigment rhodopsin, while cones have three different

photopigments

3. Retinal is a derivative of vitamin-C

4. Rhodopsin is the purplish red protein present in rods only 

The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of

the human eyes is a derivative of

1. vitamin-C

2. vitamin-D

3. vitamin-A

4. vitamin-B

Which one of the following is the correct difference between rod cells and cone cells of our retina? 

The neural cells of Retina of eye are-.      

a. Bipolar cell

b. Ganglion cell

c. Photoreceptor cells

Arrange them in order from inside to outside.