Identify the pigment that gives blood its colour.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Hemoglobin.
The pigment that gives blood its color is hemoglobin. Hemoglobin is a protein found in red blood cells that binds to oxygen and transports it throughout the body. The red color of blood is due to the iron-containing heme groups within hemoglobin, which reflect light in such a way that blood appears red. This pigment is crucial for oxygen transport and overall respiratory function in humans and many other animals.