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Do enzymes work only on single substrate in most cases?
Yes, almost all work on a single substrate.
What features can enzymes change in chemical reactions?
Enzymes display three major types of selective advantages: Chemoselectivity: Since the purpose of an enzyme is to act on a single type of functional group, other sensitive functionalities, which would normally react to a certain extent under chemical catalysis, survive. As a result, biocatalytic reactions tend to be "cleaner" and laborious purification of product(s) from impurities emerging through side-reactions can largely be omitted. Regioselectivity and Diastereoselectivity: Due to their complex three-dimensional structure, enzymes may distinguish between functional groups which are chemically situated in different regions of the substrate molecule. Enantioselectivity: Since almost all enzymes are made from L-amino acids, enzymes are chiral catalysts. As a consequence, any type of chirality present in the substrate molecule is "recognized" upon the formation of the enzyme-substrate complex. Thus a prochiral substrate may be transformed into an optically active product and both enantiomers of a racemic substrate may react at different rates. These reasons, and especially the latter, are the major reasons why synthetic chemists have become interested in biocatalysis. This interest in turn is mainly due to the need to synthesise enantiopure compounds as chiral building blocks for drugs and agrochemicals. Another important advantage of enzymes are that they are environmentally acceptable, being completely degraded in the environment. Furthermore the enzymes act under mild conditions, which minimizes problems of undesired side-reactions such as decomposition, isomerization, racemization and rearrangement, which often plague traditional methodology.
What is a factor that speeds up chemical reactions beside catalyst?
Temperature - this is almost always the case. Pressure - this mostly applies to gases Concentration Surface Area
How can an enzymes affinity be altered?
Almost all enzymes are proteins, and like other proteins, they can be denatured by exposure to heat, radiation, electricity, certain chemicals, or fluids with extreme pH values.For example, many enzymes become inactive at 45°C, and nearly all of them are denatured at 55°C.
Tsunami waves are almost the same as ripples caused by throwing a rock into a pond. What is the major difference between the two?
The energy source of tsunami waves is much greater The energy source of Tsunami waves is much greater
Do enzymes work only on single substrate in most cases?
Yes, almost all work on a single substrate.
Is perimeter always greater than the area?
No the area is almost always greater.
When did the Nazi's build concentration camps?
Concentration camps were built almost immediately after Hitler came to power. used as prisons and labour camps
Why did the Americans free Jews from concentration camps?
Why? Because the Jews were starving, and almost dead. When Americans found concentration camps, most were abandoned by Nazis.
Is eight greater than negative one?
almost always.
Is 0.89 X 10 greater than 1?
Yes, it is almost 9 times greater.
Is 0.55 greater than 0.50?
0.55 is greater 0.50. It's almost like comparing 55 to 50... is 55 greater 50... It is, right? So, the answer is 0.55 is greater 0.50.
Is 540sec greater than 8min?
NO\YES their are almost the same thing
Silicon electrical conductivity?
Varies dramatically with dopant concentration. Pure silicon is almost an insulator.
What features can enzymes change in chemical reactions?
Enzymes display three major types of selective advantages: Chemoselectivity: Since the purpose of an enzyme is to act on a single type of functional group, other sensitive functionalities, which would normally react to a certain extent under chemical catalysis, survive. As a result, biocatalytic reactions tend to be "cleaner" and laborious purification of product(s) from impurities emerging through side-reactions can largely be omitted. Regioselectivity and Diastereoselectivity: Due to their complex three-dimensional structure, enzymes may distinguish between functional groups which are chemically situated in different regions of the substrate molecule. Enantioselectivity: Since almost all enzymes are made from L-amino acids, enzymes are chiral catalysts. As a consequence, any type of chirality present in the substrate molecule is "recognized" upon the formation of the enzyme-substrate complex. Thus a prochiral substrate may be transformed into an optically active product and both enantiomers of a racemic substrate may react at different rates. These reasons, and especially the latter, are the major reasons why synthetic chemists have become interested in biocatalysis. This interest in turn is mainly due to the need to synthesise enantiopure compounds as chiral building blocks for drugs and agrochemicals. Another important advantage of enzymes are that they are environmentally acceptable, being completely degraded in the environment. Furthermore the enzymes act under mild conditions, which minimizes problems of undesired side-reactions such as decomposition, isomerization, racemization and rearrangement, which often plague traditional methodology.
Which has the greater population Greenland or Vermont?
Greenland's population is about 57,600.Vermont's population is about 621,760.Vermont's population is almost 10.8 times as large as Greenland's.Vermont's population is almost 11 times greater than Greenland's.
Which is greater the height of Mt Everest or the depth of the Marina Trench?
The mariana trench is greater by almost 6500 feet 29k to 35k
