Working of eye, Biology

Assignment Help:

WORKING OF EYE -

Human eye is sensitive to light wavelenght ranging from 380 - 760 nm.

Bees, ants, spiders and gold fish can see uttraviolet light which is invisible to human.

It has 2 functional parts -

1. Focussing part or dioptic -

It consists of conjunctiva, cornea, aquous humour, lens, vitrous humour. They refrect the light rays to bring them on the retina. Maximum refrection is caused by cornea.

2. Receptor part -

It comprises of retina. Here inverted and smaller image is formed.

In man Binocular or steroscpic vision is formed due to position of eyes i.e. close to each other.

In rabbit and other animals except primates monocular or panoramic image is formed.


Related Discussions:- Working of eye

Basic concepts of earthquake resistant structures, The aim of earthquake-re...

The aim of earthquake-resistant structure designing The main objectives of earthquake resistant structures are as follows: (i)     To avoid loss of lives due to the destruct

Explain the use of chlamydia in pregnancy, Use of Chlamydia in Pregnancy  ...

Use of Chlamydia in Pregnancy  Doxycycline, other tetracyclines and the flour quinolones generally should not be used during pregnancy. Azithromycin appears to be safe in pregn

Dehydration reaction between both molecules, Draw decanol, plamitic acid (C...

Draw decanol, plamitic acid (C16:0 fatty acid) and the resulting wax ester generated by a dehydration reaction between both molecules

Evaluation of the programme or agency, Evaluation of the programme or agenc...

Evaluation of the programme or agency: It can be  based on following:  i)   Audit or review of programme or agency: This can be continuously done by the staff through in

Nutrition, pictures for hetrotrophic and autotrophic mode of nutrition

pictures for hetrotrophic and autotrophic mode of nutrition

Kidneys participate in the acid-basic equilibrium, Q. How do kidneys partic...

Q. How do kidneys participate in the regulation of the acid-basic equilibrium of the body? How are alkalosis and acidosis respectively corrected by the kidneys? Kidneys can reg

Explain genetic relatedness of the aid-giver, Aid-giving behaviour between ...

Aid-giving behaviour between genetically related individuals in animal groups is often observed in nature. This aid-giving behaviour can evolve when the advantages of helping relat

Define cooking, Define cooking,blanching and Canning - thermal processing? ...

Define cooking,blanching and Canning - thermal processing? Cooking: Cooking is a primary process to make food more palatable and improve taste. This is not used as a preservati

Which the phylum echinodermata is divided, Q. What are the classes into whi...

Q. What are the classes into which the phylum Echinodermata is divided? The five echinoderm classes are: asteroids (starfishes), ophiuroids, crinoids, holothuroids (sea cucumbe

Excretory organs, what is the excretory organs of,rat,fish,lizard,frog,cock...

what is the excretory organs of,rat,fish,lizard,frog,cockroach,bird and snail.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd