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Is a catalytic action more effective at room temperature than higher temperatures?
Wiki User
∙ 14y ago
It depends on the nature of the catalyst. For instance, most organic catalysts, known as enzymes, are proteins folded into a very specific shape. Higher temperatures can cause some of these enzymes to lose their shape, thus becoming ineffective.
On a different note, higher temperatures increase the rate of most reactions by providing more energy to the molecules so they may reach activation energy. However, this phenomenon is independent of catalytic action.
Wiki User
∙ 14y ago
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The graph below shows how two different enzymes react with a substrate as the temperature increases. Based on the results what conclusion can be drawn about the action of the enzymes as the temperatur?
enzyme B stays effective at higher temperatures than enzymes A
Why rough surface of a catalyst is more effective?
Rough surfaces form irregular surface increase the surface area. Catalytic action is directly proportional to the area of contact.
Can cold temperature denature a protein?
Not usually. Denaturation occurs when bonds are broken and this requires energy ie high temperatures. However, low temperatures may slow down the action of the protein so much that appears to have stopped working altogether
How At high temperatures the rate of enzyme action decreases because the increased heat?
alters the active site of the enzyme
What does a high temperature tell about the action of molecules in an object?
The higher the temperature, the more the molecules shake and bump into each other.
Based on the results of what conclusions can be drawn about the action of the enzyme as the temperature increase?
enzyme A becomes less effective earlier than enzyme B enzyme b stays effective at higher temperatures than enzyme a
The graph below shows how two different enzymes react with a substrate as the temperature increases. Based on the results what conclusion can be drawn about the action of the enzymes as the temperatur?
enzyme B stays effective at higher temperatures than enzymes A
How will you be able to tell which ion is responsible for any catalytic action?
Mn2+ ion is responsible for the catalytic action
What conclusion can be drawn about the action of the enzymes as the temperature increase?
enzyme A becomes less effective earlier than enzyme B enzyme b stays effective at higher temperatures than enzyme a
Do Temperature of the cytoplasm influence the action of enzymes?
Yes, enzymes have optimal working temperatures that differ from enzyme to enzyme
Why rough surface of a catalyst is more effective?
Rough surfaces form irregular surface increase the surface area. Catalytic action is directly proportional to the area of contact.
What is a substance that slow or stop enzymes catalytic action?
inhibitors
Can temperatures break down rocks?
Yes. Temperature changes, water, wind, pressure changes, plant and animal action, and gravity are all agents of physical weathing.
Can cold temperature denature a protein?
Not usually. Denaturation occurs when bonds are broken and this requires energy ie high temperatures. However, low temperatures may slow down the action of the protein so much that appears to have stopped working altogether
Why are temperatures and pH important to enzyme function?
Enzymes function optimally at a patricular temperature and pH. If the temperature is decreased or increased, the enzyme will not function as effectively. The enzyme is most active only at a patricular temperature and pH. Hence, these two factors are very important for enzyme action.
What prevents or slows a chemical reaction or interferes witha catalyst's action?
an inhibitor or catalytic poison
What is the temperature that promotes enzymatic action?
Different enzymes are most efficient at different temperatures, these are called 'the optimum temperature'. A temperature far lower than this will cause the rate of reaction to slow until barely noticable. A temperatuere far higher than this will cause the shape of the enzyme to change and the enzyme will become denatured.
