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1.2 What happens in cells (and what do cells need)?

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Question 15
F

A student wants to find the optimum temperature for the enzyme amylase.

The student is given:

  • starch solution
  • amylase solution
  • iodine solution
  • a spotting tile
  • test tubes and syringes
  • water baths at 20 ∘C20\ ^\circ\text{C}20 ∘C, 30 ∘C30\ ^\circ\text{C}30 ∘C, 40 ∘C40\ ^\circ\text{C}40 ∘C, 50 ∘C50\ ^\circ\text{C}50 ∘C and 60 ∘C60\ ^\circ\text{C}60 ∘C
  • a stopwatch.

Describe how the student could use this apparatus to find the optimum temperature for amylase.

[6]
Markscheme

1.2 What happens in cells (and what do cells need)? Questions

  1. GCSE
  2. /Biology
  3. /1.2 What happens in cells (and what do cells need)?

184 exam-style questions on OCR GCSE Biology 1.2 What happens in cells (and what do cells need)?, covering 1.2.1 Structure of DNA, 1.2.2 Nucleotides and complementary bases, 1.2.3 Protein synthesis, 1.2.4 DNA structure and the proteins made, 1.2.5 Investigating enzymatic reactions, and 1.2.6 Mechanism of enzyme action. Each one has a worked solution and a mark scheme showing where the marks go.

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