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

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Question 8

A student uses protease to break down protein in a solution. The student measures the concentration of protein remaining at two times.

Time (s)Concentration of protein remaining (g dm−3\mathrm{g\,dm^{-3}}gdm−3)
408.4
1605.4

The protein is broken down at a constant rate from 40 s to 220 s.

Calculate the concentration of protein remaining at 220 s.

[3]
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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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