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

Describe the term - near-far problem, Describe the term - Near-far problem ...

Describe the term - Near-far problem Signals closer to the receiver are received with less attenuation than signals farther away. Given the lack of complete orthogonality, the

Companion cells, Companion cells  are the specialized cells in the phloem w...

Companion cells  are the specialized cells in the phloem which load sugars into the sieve elements and help to maintain a functional plasma membrane in the sieve elements.

Define surgery, Define Surgery? Surgery ! Does the word itself not crea...

Define Surgery? Surgery ! Does the word itself not create a feeling of anxiety and bring our thoughts towards a debilitating state of health which would be accompanied by pain,

Systematics, binomial nomenclature is not applicable to

binomial nomenclature is not applicable to

Financing of healthcare - constraints, Financing of Healthcare - Constraint...

Financing of Healthcare - Constraints One of the major constraints to improve the healthcare delivery system in developing countries is weak public sector management. These ec

Define salient modifiable factors which affect birth weight, Define salient...

Define salient modifiable factors which affect birth weight? The following are the salient modifiable factors which affect birth weight and gestation adversely: Iron deficiency

Differnces, difference between protonephridia and metanephridia

difference between protonephridia and metanephridia

Tertiary prevention- preventive strategies for food allergy, Define Tertiar...

Define Tertiary Prevention- preventive strategies for food allergy? Tertiary Prevention: Targets the control of factors that cause symptoms. This strategy would be appropriate

Explain pulmonary atresia with intact ventricular septum, Explain Pulmonary...

Explain Pulmonary Atresia With Intact Ventricular Septum ? The direct communications between RV and PA is absent. The PDA is major source of blood flow to lungs From Aorta. The

Spreading mechanisms of the disease, Talk about briefly three  of the commo...

Talk about briefly three  of the common enteric diseases caused by inadequate clean water supply and insufficient sanitation facilities. Your talk should contain the source and spr

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