The cornea is a very important component of the human eye. The main function of the cornea is to
- bend the light before it reaches the lens
- provide structural support to the eye
- contain a concentrated amount of cone cells in the correct orientation
- change the shape of the lens to enable the image to be focused on the retina
The Correct Option is A
Solution and Explanation
Top Questions on sense organs
Rajat Singh was working as a supervisor in a stone quarry where rock, sand and gravel are extracted by techniques like digging, drilling, and blasting. As the years rolled by, Rajat started facing a loss in hearing. The high decibel sounds had damaged a part of his internal ear, though the tympanic membrane was intact.
(a) Give the collective term for the structure located in the internal ear.
(b) Name the sensory organ in the Cochlea which was damaged for Rajat Singh.
(c) What kind of pollution do the workers face in the stone quarry?
- ICSE Class X board - 2026
- Biology
- sense organs
Tara's grandmother is 70 years old and has a passion for embroidery. She faces difficulty in threading the needle as the eye of the needle appears blurred. The ophthalmologist diagnosed it as an age-related disorder.
(a) Name the eye disorder she is suffering from.
(b) How can the above defect be corrected?
(c) Where is the image formed in the above disorder?
- ICSE Class X board - 2026
- Biology
- sense organs
Karan was standing on a high stool and cleaning the ceiling fan.
He suddenly loses balance and sustains a head injury. An examination reveals that his pupils have lost the capacity to constrict in bright light. Which structure has been damaged?
- ICSE Class X board - 2026
- Biology
- sense organs
Bharat woke up late in the morning and missed the school bus.
This situation stimulated the nerves of the sympathetic system which resulted in:
- ICSE Class X board - 2026
- Biology
- sense organs
Copy the diagram given below.
(a) Name the structure.
(b) Label Gray matter and White matter.
- ICSE Class X board - 2026
- Biology
- sense organs
Questions Asked in AIIMS exam
- The element Neodymium (Nd) belongs to the 4f series. What is its atomic number?
- AIIMS - 2024
- Modern Periodic Law And The Present Form Of The Periodic Table
- The correct increasing order of energy of orbitals in a hydrogen atom is:
- AIIMS - 2024
- Atomic Structure
- Which of the following is a globular protein?
- AIIMS - 2024
- Biomolecules
- Given that the surface charge density on a sphere is 200 μC/m2, what is the electric field at the surface of the sphere?
- AIIMS - 2024
- Electrostatics
- Which of the following is a crystalline solid?
- AIIMS - 2024
- The solid state
Concepts Used:
Sense Organs
The nervous system must receive, accept, and processes information about the world outside in order to react, communicate, and keep the body safe and healthy. Much of this information comes by way of the sensory organs: the eyes, nose, ears, tongue, and skin. Specialized cells and tissues within these organs obtain raw stimuli and translate them into signals the nervous system can use. Nerves communicate the signals to the brain, which interprets them as sight (vision), sound (hearing), smell (olfaction), taste (gustation), and touch (tactile perception).
- In order to process, the eyes translate light into image signals for the brain.
- The ear uses bones and fluid to convert sound waves into sound signals.
- Exclusive receptors in the skin send touch signals to the brain.
- Chemicals present in the air stimulate signals the brain interprets as smells.
- The tongue is the chief organ of gustation.