Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Properties of Phytochrome
Phytochrome is a chromoprotein: this means it is composed of a protein and a chromophore. The chromophore is actually attached to the protein and is responsible for its-colour and light absorption. It is possible to isolate phytochrome in absolutely pure form by following the procedures of protein purification. The phytochrome in test-tubes also shows similar absorption characteristics. It absorbs red light (maximum absorption occurs at 660 nm wavelength) and on conversion, far-red light (maximum absorption occurs in far-red region at 730 nm). A typical absorption spectrum of phytochrome is shown-in figure. It is a soluble protein and is present in the cytoplasm. It is believed that Pfr form may be associated with the membranes. The intact phytochrome protein has a molecular weight of 124,000 daltons. .The total amino acid sequence of the protein is also known and, using recombinant DNA technology, the gene coding for phytochrome has been isolated.
Figure: Absorption spectrum of phytochrome in vitro. Phytochrome was purified add its Absorption spectrum was measured by a spectrophotometer. When Pr was irradiated with red light, the absorption spectrum (dotted line) was obtained. This shows the conversion of Pr to Pfr.
(a) Name four examples of compounds which are classed as carbohydrate. (b) What elements are present in carbohydrates? (a) Sugars (glucose, fructose, maltose, sucro
Sa u s a g e manufacture Sausage enjoys a prime place among various meat products. Major advancements in processing technology (rapid curing, hot processing, use of solubl
Adult Botulism The symptoms of botulism may develop between 12 and 72 hours after the ingestion of toxin containing foods. Symptoms include nausea, vomiting, fatigue, dizzine
Echocardiography: LV hypertrophy can be identified using M-Mode and 2 D imaging. Indications of myocardial ischemic states and systolic functions can be assessed by studying region
Q. What are the hormones secreted by the adrenal medulla? What are their respective functions? The medullary portion of the adrenals secretes hormones of the catecholamine grou
Define about the Food Effects on Drug Metabolism? The general tendency of the process of metabolism is to transform a drug from a lipid- soluble to a more water-soluble compoun
difference between immunity and inflamation
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Would you expect the muscle fibers of the tongue to be striated or smooth? What about the muscle of the diaphragm/ Explain your answer.
A species has a diploid chromosome number of 56. Is it true or false that of the 28 chromosomes in an ovum, 14 are always paternal? Ignore the effects of crossing over. Justify you
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd