Question

Similarities and difference between chlorophyll and haemoglobin

Answer 1

Deare student.

Similarities: Both are pigments.
Both possess a central metallic atom in their structure.

Chlorophyll	Haemoglobin
It is a plant pigment which absorbs sunlight during the process of photosynthesis.	It is a respiratory pigment that transports oxygen and carbon-dioxide in our blood. It transports oxygen from lungs to the tissues and then back from tissues to the lungs.
In a single chlorophyll molecule the central atom is magnesium ion (Mg2+)	The central atom in haemoglobin is ferric ion (Fe2+).

Regards.