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

Explain procambium in primary growing shoot, Explain Procambium in primary ...

Explain Procambium in primary growth in shoot ? The vascular tissue in the shoot is produced from a primary tissue called the procambium, located in the apical meristem. New vas

State the term - molybdenum, State the term - Molybdenum   Molybdenum i...

State the term - Molybdenum   Molybdenum is intimately related to nitrogen metabolism of plants. It is part of the nitrate reductase system which helps to utilise nitrate for n

#title.growth hormone., according to the graph,which age is the amount og g...

according to the graph,which age is the amount og growth hormone produced at its highest?

What is the cellular structure to which mrna molecules bind, What is the ce...

What is the cellular structure to which mRNA molecules bind to start the protein synthesis? To make proteins mRNA molecules of necessity associate to ribosomes. Ribosomes have

Agriculture - degradation of ecosystem, Agriculture - Degradation of Ecosys...

Agriculture - Degradation of Ecosystem Agriculture whether traditional or modern involves intervention and modification of the natural ecological systems. Ever since man has s

Define the drugs effects on excretion, Define the Drugs Effects on Excretio...

Define the Drugs Effects on Excretion? Use of certain drugs can influence the excretion of certain substances. For example, besides their intended increase in sodium excretion,

Which are the heart chambers, Q. Which are the heart chambers respectively ...

Q. Which are the heart chambers respectively where the entrance and the exit of blood occur? The heart chambers through which blood enters the heart are the atria there are the

Importance of forests - fuel wood, Importance of Forests - Fuel Wood T...

Importance of Forests - Fuel Wood The forests are renewable resources which provide us a wide variety of commodities. For man, forests have been a source of recreation and the

Features of plant hormones, Features of Plant Hormones The following a...

Features of Plant Hormones The following are the important features of the role of plant hormones in growth and development: The hormone may initiate one response

What is low - density lipoprotein receptor pathway, Q. What is low - densit...

Q. What is low - density lipoprotein receptor pathway? Ans. The increasing cellular free cholesterol generated regulates the activities of two enzymes that are of crucial

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