English

Mention, Where in Living Organism is the Following Located and State Their Main Function: Fovea Centralis - Biology

Advertisements
Advertisements

Question

Mention, where in living organism is the following located and state their main function:
Fovea centralis

One Line Answer

Solution

Fovea centralis is located at the back of the eye almost at the centre of the eyeball. It is the region of the brightest vision and also of the colour vision.

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Sense Organ - Short answer type [Page 149]

APPEARS IN

Selina Concise Biology [English] Class 10 ICSE
Chapter 11 Sense Organ
Short answer type | Q 3.1 | Page 149

RELATED QUESTIONS

Write the function of the following part of the human eye: Cornea


Explain the mechanism of vision.


Draw a neat and labelled diagram of the structure of the human eye.


Name the part of the eye: 

 which changes the focal length of eye-lens.

 


What is the function of the lens in the human eye? 


Where does the greatest degree of refraction of light occur in the eye?


There are two types of light-sensitive cells in the human eye: 

To what is each type of cell sensitive?


Name the cells on the retina of an eye which are sensitive to (i) bright light (ii) dim light (iii) sensation of colour.


Explain why, when it is getting dark at night, it is impossible to make out the colour of cars on the road.


What is presbyopia? Write two causes of this defect. Name the type of lens which can be used to correct presbyopia.


Name the respective organs in which the following are located and mention the main function of each:
(i) Iris
(ii) Semicircular canals


What happens to the image distance in the normal human eye when we decrease the distance of an object, say 10 m to 1 m? Justify your answer. 


State the Location:
Iris


State the Function:
Cornea


 Choose the Odd One Out: 


Why the human eye is compared with camera?


Which part of the eye gets affected if someone is suffering from cataract? How is it treated?


Describe the parts in the external structure of the eye.


Match the following:

Column - I Column - II
1. Retina a. Path way of light
2. Pupil b. Far point comes closer
3. Ciliary muscles c. near point moves away
4. Myopia d. Screen of the eye
5. Hypermetropia e. Power of accommodation

Given below is a cross section of the human eye. Match the structures marked (a) to (e) with their correct functions:

Example: (f) - 6. Holds the lens in position

Cross section of Human Eye   Functions
1. Protects retina
2. Regulates the size of the pupil
3. Alters the shape of the lens
4. Keeps the lens moist
5. Transmits nerve impulses to brain
6. Holds the lens in position

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×