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.
Check Your Spec!
★ AQA Specification Reference: - 18.104.22.168 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.