State the young''s trichromatic theory, Biology

Assignment Help:

Young's Trichromatic Theory

According to Young's theory, three types of cones exist, each sensitive to a particular pigment-rythrolabe (red), chlorolabe (green), and cyanolabe (blue). The three classes have a spectral sensitivity that peak at, blue (440-450 nm), green (535-555 nm), and red (570-590 nm). Although the peak wave lengths are different, the three classes of cones have overlapping spectral sensitivity. This occurs because there is a secondary band of absorption that allows sensitivity of all visual pigments to fall off sharply on the wave length side of the peak but less sharply on the short wave length side of the peak.

 


Related Discussions:- State the young''s trichromatic theory

Explain the acquired deficiency of the vitamin k metabolism, Why are some t...

Why are some types of hemorrhagic diseases caused by genetic or acquired deficiency of the vitamin K metabolism? Lack of vitamin K predisposes to hemorrhages as this vitamin i

What are the factors responsible for corneal hydration, What are the factor...

What are the factors responsible for corneal hydration? The factors responsible for corneal hydration are as follows: i. Stromal swelling pressure ii. Barrier function of

Excretory organs in different animals, EXCRETOR Y ORGANS In protozo...

EXCRETOR Y ORGANS In protozoa through plasmalemma by diffusion. Contractile vacuole present for osmoregulation (absent in parasitic and marine protozoa). In porifera and

Chloroplast, Chloroplast In plants, chloroplasts are the essential o...

Chloroplast In plants, chloroplasts are the essential organelles for carrying out photosynthesis. Chloroplasts are found in all green plants. Chloroplast occurs mainly

How folate is important for pregnant women, How Folate is Important For Pre...

How Folate is Important For Pregnant Women? Folate is also important for pregnant women. Low blood levels of folate during pregnancy can cause neural tube defects-anencephaly (

Can you explain lane and eynon method, Q. Can you explain Lane and Eynon me...

Q. Can you explain Lane and Eynon method? Reducing sugars are those, which have free sugar groups (e.g. glucose, fructose etc.) and hence may be estimated directly by titrat

Evaluation of health services, CONCEPT AND MEANING OF EVALUATION: Eval...

CONCEPT AND MEANING OF EVALUATION: Evaluation of programmes is critical for measuring various community health services The ultimate reasons for doing evaluation is to ensure

Cells, What physical and metaboloic constraints limit cell size?

What physical and metaboloic constraints limit cell size?

Determine the posterior superior alveolar nerves, Determine the posterior s...

Determine the posterior superior alveolar nerves The anterior, middle and posterior superior alveolar nerves run in the facial wall of the maxillary sinus between its lining me

What is the inactivation of the x chromosome?what is a barr, What is the in...

What is the inactivation of the X chromosome? What is a Barr body? The Inactivation of the X chromosome is a phenomenon that occurs in women. Ever since women have two X chromo

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