IB Biology SL C1.1.8 Effects on Enzyme Activity Questions

Explore how temperature, pH and substrate concentration affect enzyme activity, from the optimum temperature and active-site bonding to saturation in IB Biology SL C1.1.8.

Exam points

Explain how increasing temperature raises enzyme activity to an optimum, after which denaturation lowers the rate.
Explain how pH changes alter bonding at the enzyme active site and affect enzyme activity.
Interpret substrate-concentration data to explain the rise in enzyme activity to a saturation plateau.

[Maximum number: 2]

The image represents the structure of the enzyme Rubisco from common pea (Pisum sativum).

Figure for Question IB Biology SL C1.1.8 Effects on Enzyme Activity Questions question 1 — IB Biology SL

Outline one factor that could affect the activity of Rubisco.

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a	name of factor;
b	how it affects rate of reaction.

IB Biology SL C1.1.8 Effects on Enzyme Activity Questions question 1