Question

Which among the following is an incorrect statement?

• A. Magnesium helps to maintain the ribosome structure.
• B. Phosphorus is constituent of cell membrane
• C. Manganese is a constituent of the ring structure of chlorophyll
• D. Iron is essential for the formation of chlorophyll.

Answer 1

The correct option is C Manganese is a constituent of the ring structure of chlorophyll

Magnesium plays an important role in the association of subunits of ribosomes during protein synthesis and in general maintains the structure of ribosomes and also provides stability.
Cell membrane is composed of a bilayer of phospholipids. Phospholipids have head and tail. Head is composed of phosphate groups and the tail is made up of two fatty acid chains.
Magnesium is a constituent of the ring structure of chlorophyll but not manganese.

Chlorophyll structure

Iron is involved in the synthesis of chlorophyll pigments and also maintains the chloroplast structure.