Cyanide - enzyme-activity control, Biology

Assignment Help:

Cyanide - Enzyme-activity Control

Plants generate cyanide from cyanogenic glucides and histidines. Ethylene biosynthesis is also accompanied by cyanide production. Nitrate reductase can occur in reduced form following its interaction with NADH in the absence of nitrate. The reduced form of the enzyme has the ability to combine with cyanide forming enzyme-CN complex which is enzymatically inactive. Nitrate, blue light or oxygen oxidise the enzyme-CN complex releasing cyanide.

The cyanide free enzyme regains its activity. Hydroxyl amine or superoxide inactivates the enzyme which on exposure to blue light gets converted to active form. It is observed that plants grown in blue light are higher in protein contents. Blue light regulation of nitrate reductase activity may be one of the primary factors responsible for higher protein synthesis.


Related Discussions:- Cyanide - enzyme-activity control

Consumers-biotic components , Consumers Heterotrophs (other nourishing...

Consumers Heterotrophs (other nourishing) are incapable of photosynthesis and depend on organic food derived from animals, plants or both. Consumers can be divided into two br

Animal around us, #question.what are the reason that arthropodans are abund...

#question.what are the reason that arthropodans are abundant in nature.

Trends in succession - ecology, Trends in Succession - Ecology Success...

Trends in Succession - Ecology Succession is an important aspect of change in ecosystems and a simple description of successional communities the beginning of the story. We ne

Determine the genotypes of parents, In humans, the recessive allele that ca...

In humans, the recessive allele that causes a form of red-green colour blindness (c) is found on the X chromosome. a) Determine the genotypes and phenotypes of the F1 generation fr

Explain supravalvular aortic stenosis murmur, Explain Supravalvular aortic ...

Explain Supravalvular aortic stenosis murmur? Supravalvular Aortic Stenosis Murmur : Characteristic: Murmur may be loudest in 1st Right ICS. It isn't associated with systolic

Fungi, what is the symmetry of fungi?

what is the symmetry of fungi?

Development of pollen in cyperaceae, Development of Pollen in Cyperaceae ...

Development of Pollen in Cyperaceae In all members of the Cyperaceae out of the four nuclei formed after meiosis, only one functions, the others degenerate. The functional nuc

Define mitosis er and nucleolus, During mitosis ER and nucleolus begin to d...

During mitosis ER and nucleolus begin to disappear at: 1.  Late prophase 2. Early metaphase 3. Late metaphase 4. Early prophase Late prophase

Define nutritional availability - microbial survival, Define Nutritional Av...

Define Nutritional Availability - Microbial Survival and Growth? Food borne microbes are chemotrophs. Generally the types of microorganisms present on a particular food are the

Locomotion in annelida, Locomotion in Annelida Before we discuss the ...

Locomotion in Annelida Before we discuss the details of locomotion in annelids, we have to recapitulate the major subdivisions of the phylum Annelida. Phylum Annelida contain

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