Question

TELL ME THE ANSWER FAST ❤​I NEED HELP EVERYBODY ✊

Answer 1

Answer:

(a) heme group

The heme group (a component of the hemoglobin protein) is a metal complex, with iron as the central metal atom, that can bind or release molecular oxygen. Both the hemoglobin protein and the heme group undergo conformational changes upon oxygenation and deoxygenation

(b) Calcium

Main element present in chalk is Calcium. The composition of chalk is CaCO_3CaCO3​Main element present in Chlorophyll is magnesium. The central metal atom is Magnesium and organic molecule around it is known as porphyrin.

(c) magnesium ion

Chlorophyll a contains a magnesium ion encased in a large ring structure known as a chlorin. The chlorin ring is a heterocyclic compound derived from pyrrole. Four nitrogen atoms from the chlorin surround and bind the magnesium atom. The magnesium center uniquely defines the structure as a chlorophyll molecule.

(d)Aluminium

The central metal atom is Magnesium and organic molecule around it is known as porphyrin. Main element in Chocolate wrappers is Aluminium. the wrapper is mainly the aluminium foil.