What are the enviromental factors that affect enzyme action?

Answer 1

Temperature: increasing the temp. will increase the reaction rate of any reaction

pH of solution: also effects the shape of the enzyme by changing the interactions of charges on the acidic (- charge) and basic (+ charge) amino acids.

Number of substrate and/or enzyme molecules available:the amount of workers vs. materials and vice versa. Presence of inhibitors: Competitive - action at the active site, similar molecules in shape

Non-competitive / allosteric - ('other' 'shape')

Answer 2

Temperature, pH, cofactors, substrate and enzyme concentration, Inhibitors (competitive and non- competitive)

Allosteric enzyme and negative feedback mechanism e.g. in metabolic pathways

Answer 3

Things like pH and temperature affect it. Environmental conditions change the shape of enzymes irreversibly so that it won't work anymore. Like a lock and key, if someone melted your key then you would need a new one. ;)

Answer 4

That is difficult to answer without details. What kind of enzymes and in what context?

But enzymes are made of protein so they undergo the same problems a cell or protein would in different environments.

They denature and will coagulate in high temperatures, can freeze causing membranes damaged, will burst under the wrong moisture conditions (hyper/hypotonic solutions), and can be effected by other molecules present in the environment (catalysts speed reaction and inhibitors stop a reaction) depending on what enzyme is at work.

Most are also functional only within a specific acidic or alkaline range, so pH is important in beginning and ending an enzymes activity.

Answer 5

Enzyme's work best at a pH of 7.4 and if it's too high the enzyme will stop working.

Answer 6

Variations in temperature, pH and ionic concentrations.

Answer 7

High temperature>50 degrees C, none optimal pH (varies for the enzyme), heavy metals

Answer 8

1: pH

2:temp

3:ions present

4:substrate concentration

5:inhibitors

6:activators

7:product inhibition

Answer 9

Enzymes are affected by temperature, the amount of the substrate that they are acting on and the amount of product. All of these change how they work.

Answer 10

I eat massive amounts of spaghetti