A Level Biology: Biochemistry Lesson 18.

Enzymes: How Temperature Affects Enzymes.

Task 1. Check Where this Lesson fits into your Exam Specification!

Task 2. Watch the Revision Notes Lesson in Full.

00:00 Intro Screen / Learning Outcomes

00:22 How enzymes Lower Activation Energy

01:35 The effects of temperature on enzyme activity (introduction)

02:42 As Temperature increases...

02:50 The Enzyme as Denatured...

03:13 Enzymes have optimal temperatures.

03:34 Analyse the graph... Point 1.

03:54 Point 2 on the graph.

04:08 Point 3 on the graph.

04:26 Point 4 on the graph.

04:46 Summary.

Enzymes-temperature---A3-Poster.png

Check Your Spec!

 

★ AQA Specification Reference: - 3.1.4.2 Many proteins are enzymes. The effects of temperature on the rate of enzyme controlled reactions.

 

★ CIE Specification Reference: - 3 Enzymes. 3.2 Factors that affect enzyme action - Temperature.

 

★ Edexcel (Biology A – Salters-Nuffield) Specification Reference: - Now specific reference to how temperature affect enzymes stated.

 

★ Edexcel (Biology B) Specification Reference: - Topic 1: Biological Molecules: 1.5 Enzymes - iv) Understand how temperature affects the rate of enzyme activity.

 

★ OCR (Biology A) Specification Reference: - 2.1.4 Enzymes the affect of terms (Note - Temperature coefficient is unique to this spec. and will be covered in a separate revision video)

 

★ OCR (Biology B) Specification Reference: - 2.1.3 Proteins and enzymes - (d) (i) the factors affecting the rate of enzyme‑catalysed reactions (temperature).

 

★ WJEC Specification Reference: - UNIT 1: Basic Biochemistry and Cell Organisation - 4. Biological reactions are regulated by enzymes (g) the influence of temperature.

 

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