Question

question 5
hemoglobin is a(an) ______ rich pigment that carries oxygen.
a iron
b calcium
c potassium
d zinc
e phosphorous

question 6
the protein that carries oxygen in the red blood cells is:
a myoglobin
b actin
c hemoglobin
d iron
e insulin

Explanation:

Question 5: Hemoglobin is an iron-containing pigment; iron binds oxygen for transport.
Question 6: Hemoglobin is the protein in red blood cells that carries oxygen.

Answer:

Question 5: A. Iron
Question 6: C. Hemoglobin