Which of the following statements is false? which of the following statements is false? myoglobin is a single polypeptide chain folded about a heme prosthetic group. hemoglobin is a tetramer, each of which binds a heme group. in both hemoglobin and myoglobin, iron is chelated by a tetrapyrole ring system. the iron in both hemoglobin and myoglobin has two coordination sites that bind to oxygen.

That would be D(the last one).

Iron in both hemoglobin and myoglobin has 1 coordination site that bind to O2.

Each iron chelated in a tetrapyrrole/porphyrin ring can bind to one oxygen molecule. That is why we say hemoglobin can carry a maximum number of 4 O2 molecules. (See attached pic)

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.