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The lock and key model refers to an analogy used to describe the specific action of an enzyme with a substrate . During this process, the enzyme is acting as the lock and has a section called the active s...

A car will topple over when it is tilted so far that the line of action from the centre of gravity falls outside of the wheel base, causing a resultant moment around the side being tilted. Extending the b...

There should be five peaks. In the process of bombarding the Br2 molecule with electrons to charge it, the molecule can fragment into 2 Br atoms. We should therefore expect to see peaks at 79 and 81 m/z. ...

Prophase, metaphase, anaphase, and telophase.

This is a typical A-level Spanish question which requires the candidate to use the past tense.