Question

Arrange the following in sequence the events of mechanism of vision: 

• A. D —$>$ A —$>$ E —$>$ B —$>$ C
• B. C —$>$ A —$>$ D —$>$ B —$>$ E
• C. D —$>$ C —$>$ A —$>$ E —$>$ B
• D. D —$>$ A —$>$ C —$>$ B —$>$ E

Hint:

When studying the mechanism of vision, it's crucial to understand the sequence of events from light perception to neural processing to accurately grasp how we see and interpret our environment.

Answer 1

The Correct Option is C

Step 1: Focus of Light on the Retina.
Light rays entering the eye are first focused on the retina, where they initiate the visual process. 
Step 2: Photochemical Reaction in Photoreceptors.
The energy from light causes the retinal to dissociate from opsin, a process occurring in the photoreceptor cells. 
Step 3: Biochemical Changes in the Cell.
The dissociation leads to changes in the permeability of the photoreceptor cell membrane, which in turn triggers electrical changes. 
Step 4: Transmission of Nerve Impulses.
These electrical changes generate nerve impulses which are then transmitted to the visual cortex of the brain. 
Step 5: Processing of Visual Information.
Finally, these impulses are analyzed in the visual cortex, leading to visual perception.