Question

The protein part of haemoglobin is :
A. Globin
B. Silver
C. Gold
D. Oxygen

Answer 1

Hint: Haemoglobin is a pigment used for carrying oxygen in blood .
It is present in red blood cells.

Complete answer:
The name haemoglobin is derived from the word heme and globin, reflecting the fact that each subunit of haemoglobin is a globular protein with an embedded heme group.
Each group contains one iron atom that can bind oxygen molecules through ion-induced dipole forces. Haemoglobin in the blood carries oxygen from the lungs or gills to the rest of the body that means to the tissue. It releases oxygen to permit aerobic respiration to provide energy for the function of the organism in the process of metabolism. Haemoglobin is found in red blood cells or erythrocytes.

So, the correct answer is “Option A”.

Additional Information:
Red blood cells or erythrocytes:
1. Red blood cells are the most common type of cell and the vertebrate principal means of delivering oxygen to the body, to the body tissues via blood flow through the circulatory system.
2. RBCs take up oxygen in the lungs, or in fish, the gills reasons it into tissues was squeezing through the body’s capillaries.
3. The cytoplasm of red blood cells is rich in haemoglobin and iron-containing molecules that can bind to 4. Oxygen and is responsible for the red color of the cells in the blood.
5. In humans mature red blood cells are flexible and oval biconcave disks.
6. They lack a cell nucleus and most organelles in order to accumulate maximum space for haemoglobin.

Note: A healthy individual has 12 to 20 grams of haemoglobin in every 100ml of blood.