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

Determine the urine analysis, Determine the Urine analysis Urine consti...

Determine the Urine analysis Urine constituent may be altered in urinary tract infection, systemic disease. However it is not routinely prescribed for most of the potential imp

Explain phylum bryophyta, Phylum Bryophyta The Bryophytes include the m...

Phylum Bryophyta The Bryophytes include the mosses and their close relatives. They are widely diverse and grow in a variety of place. 1) Life cycle shows alternation of gene

Mechanism of maturation, Mechanism of Maturation The basic mechanism o...

Mechanism of Maturation The basic mechanism of maturation of ovum is more or less similar in all organisms. The primordial germ cells that enter into the ovary divide mitotica

Define methods for determining amount of microbes in food, Define Methods f...

Define Methods for Determining the Amount of Microbes in Food? Following methods can be employed for determining the amount of microbes in the food samples and analyzing their

Palpation , Palpation: Use the ball of one hand  and move the hand  from ...

Palpation: Use the ball of one hand  and move the hand  from one side of the posterior thorax to other. Note presence of swelling, masses, muscle tone, fremitus and crepitation.

Explain about the high risk pregnancies, Explain About the High Risk Pregna...

Explain About the High Risk Pregnancies? Until now we have considered the nutritional needs of pregnant women. In this sub-section, we will consider specific conditions that co

Energy can be created from nothing, Which of the following is true of energ...

Which of the following is true of energy? a. It can be transferred from one form to another with 100 percent efficiency. b. It can be created from nothing. c. It can be stored i

Nutrition, mode of nutrition in tapeworm

mode of nutrition in tapeworm

Explain insect resistant crops - evolutionary, Insect resistant crops (IRC)...

Insect resistant crops (IRC) Insects are a natural selection pressure so plants resistant to certain insects could have an evolutionary advantage (in natural environments)

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