Which processes require plants to have either nitrate ions or magnesium ions?
- Asynthesis of cellulose: required; synthesis of chlorophyll: required; synthesis of proteins: required
- Bsynthesis of cellulose: required; synthesis of chlorophyll: required; synthesis of proteins: not required
- Csynthesis of cellulose: required; synthesis of chlorophyll: not required; synthesis of proteins: not required
- Dsynthesis of cellulose: not required; synthesis of chlorophyll: required; synthesis of proteins: required