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

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Question 17
H

The Figure shows a simplified diagram of how a protein is made in a cell.

Figure

image

a.

Name molecule X and molecule Y.

[2]
b.

Describe how molecule X is made in the nucleus.

[3]
c.

Suggest why the cell makes molecule X, instead of the DNA moving out of the nucleus to structure Z.

[2]
d.

Describe the role of molecule Y in protein synthesis.

[2]
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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