Biology 5090 · O Level · Mineral nutrition

Mineral nutrition — practice question

Why are newly germinated seeds unable to develop into healthy plants when magnesium ions are absent?

  • AMagnesium ions are a necessary component of all proteins.
  • BMagnesium ions are needed to convert chlorophyll to starch.
  • CMagnesium ions are needed to form cell walls.
  • DMagnesium ions are needed to form chlorophyll molecules.

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI