BRAINCAKETemperature Extremes
Some organisms (extremophiles) are able to survive in extremely cold or extremely hot environments.
The temperatures in deep oceans, polar regions or at high altitudes is extremely low and organisms living in these environments need to be adapted to the cold.
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Key terms in this lesson
- disulfide bridge
- A covalent bond formed between two cysteine residues that helps stabilise the tertiary or quaternary structure of a protein.
- tertiary structure
- The overall three-dimensional shape of a single polypeptide chain, formed and held by bonds between R groups.
- active site
- The region of an enzyme, with a shape complementary to its substrate, where the substrate binds and the reaction is catalysed.