A-Level Biology Specification

Edexcel B 9BI0

Section 1.5: Enzymes

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#1.5i

Know the structure of enzymes as globular proteins.

#1.5ii

Understand the concepts of specificity and the induced fit hypothesis.

#1.5iii

Understand that enzymes are catalysts that reduce activation energy.

#1.5iv

Understand how temperature, pH, substrate and enzyme concentration affect the rate of enzyme activity.

#1.5v

Understand how the initial rate of enzyme activity can be measured and why this is important.

#1.5vi

Understand how enzymes can be affected by competitive, non-competitive and end-product inhibition.

#1.5vii

Know that enzymes catalyse a wide range of intracellular reactions as well as extracellular ones.