Enzymes Flashcards

1
Q

What is an enzyme?

A

A biological catalyst

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2
Q

What is activation energy?

A

the minimum amount of energy an enzyme needs in order to display enzymatic activity

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3
Q

What effect do enzymes have on activation energy?

A

enzymes speed up reactions by lowering activation energy

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4
Q

effect of pH on enzyme action and reaction rate

A

high or low pH causes a slower action/ reaction if not fully denatured enzymes

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5
Q

Effect of temperature on enzyme action and reaction rate

A

if it is too hot, bonds are disrupted and proteins may unfold…if it is too cold molecules move too slowly and few collisions may occur

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6
Q

Effect of enzyme and substrate availability on action and reaction rate

A

Low enzyme concentration causes an enzyme to become more saturated, adding more substrate does not affect the reaction. Low substrate concentration means that the enzyme does not have enough substrate to act on, adding more enzyme does not affect the reaction

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