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Enzyme activation

Enzyme activation

conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1) activation by ions (activators); 2) activation by cofactors (coenzymes); and 3) conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme.


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Theories - Origin of Life

... – there is no way to predict where specifically the DNA polymerase enzyme will make a mistake. A cell undergoing DNA synthesis is more likely ... random. For example, I think there is research showing that transposon activation in humans is more common in the germline. I'm not sure why you ...

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by AstraSequi
Tue Mar 27, 2012 2:25 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929073

Re:

... transport of other nutrients into the plant and is also involved in the activation of certain plant enzymes. Magnesium is an important part of chlorophyll, a critical plant pigment important ...

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by Falko
Mon Aug 29, 2011 8:19 am
 
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Topic: Mineral Nutrition In Plants
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Re: Enzymes and activation energy.

From Wikipedia on Enzymes: The mechanism of enzyme catalysis is similar in principle to other types of chemical catalysis. By ... to reach the highest energy transition state of the reaction. The reduction of activation energy (ΔG) increases the number of reactant molecules with enough energy ...

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by kolean
Wed Jul 08, 2009 5:04 pm
 
Forum: Molecular Biology
Topic: Enzymes and activation energy.
Replies: 5
Views: 41031

Re: Enzymes and activation energy.

... reaction time". An increased rate means a decreased time. 2. In your first section, you comment on the three dimensional shape of the enzyme (I assume you specifically mean its active site). It is more than just shape that is of concern here, it is the electrostatic topology of the ...

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by jonmoulton
Wed Jul 08, 2009 3:25 pm
 
Forum: Molecular Biology
Topic: Enzymes and activation energy.
Replies: 5
Views: 41031

Enzymes and activation energy.

Hello Biologists, Q: Enzymes greatly decrease the activation energy. Explain two of the way they do this and be specific in terms ... the activation energy in 2 distinct ways: i. Lowering required energy: An enzyme’s selective three dimensional shape, brings the reactants (or substrates) ...

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by NewtoBiology
Wed Jul 08, 2009 2:09 am
 
Forum: Molecular Biology
Topic: Enzymes and activation energy.
Replies: 5
Views: 41031
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