Metals in biology: life beyond carbon

Quiz Content

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. Zinc finger motifs are a particular characteristic of proteins with which one of the following functions?

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. Metals are unable to exhibit metallic bonding in biological systems. True or false?

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. Which of the following elements are classed as metals? Please select all that apply.

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. Which of the following metals are involved in the transmission of nerve impulses? Please select all that apply.

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. Which metal forms part of the haem group, to which oxygen binds in haemoglobin?

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. Only iron-containing proteins can bind oxygen. True or false?

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. In the active sites of many enzymes, metals are coordinated by the amino acid histidine. Which element in histidine donates the electrons that form the coordinate bond?

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. Metal-containing enzymes are collectively known by which of the following names?

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