Practice question
Question
Nickel is essential as a component of enzyme:
Explanation
Urease (B) is correct here. This is core MINERAL Transport: once you know the definition or pathway step, Urease is the clear fit. The wrong ones are A) Nitrate reductase; C) Nitrogenase; D) RuBisCO. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.