Question 1HLPaper 1A
Sparks were passed through three gas mixtures, each with water vapour.
| Mixture | Gases | Amino acids formed (relative) |
|---|---|---|
| 1 | CH₄, NH₃, H₂ | 100 |
| 2 | CO₂, N₂ | 4 |
| 3 | CO₂, N₂, H₂ | 58 |
Which
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Question 2HLPaper 1A
RNA is presumed to have been the first genetic material.
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View answerHLPaper 1AStandard
In an investigation of the origins of cells, which result would provide evidence supporting the idea that organic molecules can form from inorganic precursors under early Earth conditions?
HLPaper 1AStandard
Question 5HLPaper 2
The apparatus shown was used by Miller and Urey in 1953 to investigate whether organic molecules could form under conditions thought to resemble those on early Earth. Some parts of the apparatus are labelled; others are not.
Figure 1: Apparatus used in the Miller–Urey experiment
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