Question

The presumed size of a chlorophyll molecule's head and tail are ........... and ............... respectively.

• A. $15\times 15A^0$ and $20A^0$
• B. $10\times 10A^0$ and $15A^0$
• C. $20\times 20A^0$ and $25A^0$
• D. $15\times 15A^0$ and $25A^0$

Answer 1

The correct option is D $15\times 15A^0$ and $25A^0$

Chlorophyll is a green pigment found in cyanobacteria and the chloroplasts of algae and plants. Chlorophyll is an extremely important biomolecule, critical in photosynthesis, which allows plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. Chlorophyll was first isolated by Joseph Bienaime Caventou and Pierre Joseph Pelletier in 1817. The presumed size of a chlorophyll molecule, which has a head and tail are 15X $15A^0$ and $25A^0$ respectively.

So, the correct answer is option D.