Photoreceptor - phototropism, Biology

Assignment Help:

Photoreceptor - Phototropism

The molecular nature of the photoreceptor is unsolved. Initially in the 1930s, some form of carotenoid was thought to be the phototropic receptor. General opinion at present, however, favors some kind of flavin as phototropic receptor, largely on the basis of the spectral match between phototropic action and flavin absorption in the ultra violet region. The action spectra for phototropism compare with the absorption spectrum of riboflavin and carotene, clearly favors riboflavin as the absorbing pigment. In some cases it can also be a flavoprotein.


Related Discussions:- Photoreceptor - phototropism

What is predation rate coefficient, Consider an ecosystem consisting of a p...

Consider an ecosystem consisting of a prey and a predator. If H is the density of prey, P is the density of predator, r is the intrinsic rate of prey population enhance and q is th

Differences among nematodes and annelids, What are the morphological simila...

What are the morphological similarities and differences among nematodes and annelids? Nematodes, like annelids, have a cylindrical elongated body. Annelids differentiate from

Nursing interventions of a patient with acute alcohol, Nursing Intervention...

Nursing Interventions of a Patient with Acute Alcohol: Intoxication  and Withdrawal Some nurses find it very difficult to work with the alcoholics. This is particularly true w

Explain about the oesoplzageal carcinoma, Explain about the Oesoplzageal Ca...

Explain about the Oesoplzageal Carcinoma? Management of patients with oesophageal carcinoma includes surgery, radiation and combination chemotherapy. Radiation to the lower nec

Describe valvar aortic stenosis murmurs, Describe Valvar Aortic Stenosis Mu...

Describe Valvar Aortic Stenosis Murmurs ? Characteristic: Harsh, rasping crescendo-decrescendo murmur best heard anywhere in a straight line from right 2nd ICS to apex ("sash"

Explain procedure for test of presence of coliform bacteria, Explain Proced...

Explain Procedure for the test of Presence of Coliform Bacteria? This test procedure is in continuation to the presumptive test procedure followed on last experiment. Now carry

Extracted chlorophyll pigments, Extracted chlorophyll pigments If we...

Extracted chlorophyll pigments If we take chlorophyll molecule in a test tube and provide 2 CO and water and expose the mixture to sunlight, glucose is not formed. If we

Fluids requirement in chronic diarrhoea, Q. Fluids requirement in chronic d...

Q. Fluids requirement in chronic diarrhoea? Fluids: Intake should be liberal to minimize the risk of dehydration. Remember we read about fluid management in this section before

Discuss in detail about the mitochondria, Discuss in detail about the Mitoc...

Discuss in detail about the Mitochondria An important function of the cell is to derive energy from the different oxidisable nutrients, such as, carbohydrates and fats supplied

Ecosystem as a unit of nature , Ecosystem as a Unit of Nature An ...

Ecosystem as a Unit of Nature An ecosystem can be visualised as a functional unit of nature representing complex interactions between living and non-living components. Th

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