Question

Redraw the diagram. Label it by identifying the parts indicated in the statements given.
(a) The part that allows light to enter the eye.
(b) The part that adjusts the curvature of the lens.
(c) The part where the cone cells are abundant.

Hint:

Pupil → light entry, Ciliary muscles → focus adjustment, Fovea → sharp vision due to cone cells.

Answer 1

Step 1: Understanding the eye diagram.
The diagram represents the internal structure of the human eye, where different parts perform specific functions related to vision.
Step 2: Part allowing light to enter the eye.
The part that allows light to enter the eye is the pupil. It is an opening present in the center of the iris through which light passes into the eye.
Step 3: Part adjusting curvature of the lens.
The ciliary muscles are responsible for adjusting the curvature of the lens. They contract or relax to change the shape of the lens for proper focusing (accommodation).
Step 4: Part where cone cells are abundant.
Cone cells are abundant in the yellow spot (fovea) of the retina. This region is responsible for sharp and detailed vision in bright light.
Step 5: Conclusion.
Thus, pupil allows light entry, ciliary muscles adjust lens curvature, and fovea contains maximum cone cells for clear vision.