45 Questions
What is the role of haemoglobin in the body?
Transporting oxygen
How many oxygen molecules can each molecule of haemoglobin bind?
Four molecules
Why do people feel tired when they are iron deficient?
Red blood cells lack haemoglobin for carrying oxygen efficiently
What color does deoxygenated haemoglobin appear as?
Purple
How does the presence of haemoglobin impact the efficiency of red blood cells?
Increases efficiency
Each molecule of haemoglobin is made up of 3 protein molecules that have an iron atom attached to it.
False
Haemoglobin is responsible for carrying oxygen in the plasma.
False
Oxyhaemoglobin has a purplish-blue color.
False
Each iron atom can bind two oxygen molecules.
False
Erythrocytes are packed with plasma molecules.
False
Haemoglobin is a ______ contained in erythrocytes and is responsible for carrying oxygen
protein
Each molecule of haemoglobin is made up of 4 ______ molecules that have an iron atom attached to it
protein
Haemoglobin makes RBC much more ______ – they can carry much more O2 than if it was dissolved in plasma
efficient
Oxyhaemoglobin is also known as ______ haemoglobin
oxygenated
Deoxyhaemoglobin is also known as ______ haemoglobin
deoxygenated
Match the following terms with their descriptions:
Haemoglobin = Protein contained in erythrocytes and is responsible for carrying oxygen Oxyhaemoglobin = Oxygenated haemoglobin with a red color Erythrocytes = Cells packed with haemoglobin molecules Deoxyhaemoglobin = Deoxygenated haemoglobin with a purplish-blue color
Match the following components with their functions:
Iron atom = Attaches to protein molecules to bind oxygen Protein molecules = Make up the structure of haemoglobin Oxygen molecules = Bound to iron atoms in haemoglobin Haemoglobin = Carries oxygen in erythrocytes
Match the following characteristics with their effects:
Presence of haemoglobin = Increases oxygen-carrying capacity of RBCs Iron deficiency = Leads to feelings of tiredness Oxyhaemoglobin formation = Results in a red color Deoxyhaemoglobin formation = Results in a purplish-blue color
Match the following terms with their properties:
Oxyhaemoglobin = Oxygen-rich and appears red Deoxyhaemoglobin = Oxygen-poor and appears purplish-blue Erythrocytes = Cells containing haemoglobin molecules Haemoglobin = Protein made up of 4 subunits with iron atoms
Match the following consequences with their underlying causes:
Feeling tired = Iron deficiency affecting haemoglobin production RBCs carrying more oxygen = Presence of haemoglobin in erythrocytes Haemoglobin molecules forming = Assembly of protein molecules with iron atoms Purplish-blue color of blood = High levels of deoxyhaemoglobin
Why do people feel tired when they are iron deficient?
Decreased oxygen-carrying capacity in the blood
What is the color of deoxygenated hemoglobin?
Purplish-blue
How many oxygen molecules can each molecule of hemoglobin bind?
Four
Where is carbon dioxide mostly transported in the body?
Plasma
What does hemoglobin attach to in order to transport oxygen?
Iron
What is the significance of the iron atom in the haemoglobin molecule?
Each iron atom can carry one oxygen molecule.
How does the presence of haemoglobin affect the transport of oxygen in the blood?
Haemoglobin makes RBC more efficient, enabling them to carry much more oxygen than if it was dissolved in plasma.
What is the difference in the way oxygen and carbon dioxide are transported in the blood?
Oxygen is mainly transported bound to haemoglobin, while carbon dioxide is mostly dissolved and transported in the serum.
What is the name given to haemoglobin that has oxygen bound to it?
Oxyhaemoglobin
What is the color of deoxygenated haemoglobin?
Purplish-blue
Deoxyhaemoglobin is the term used to describe oxygenated haemoglobin.
False
Carbon dioxide is mostly transported in the red blood cells.
False
The presence of haemoglobin in red blood cells makes them less efficient at carrying oxygen.
False
Each iron atom in haemoglobin can bind two oxygen molecules.
False
Erythrocytes are packed with haemoglobin molecules.
True
What is the primary mechanism by which the body removes CO2?
Exhaling it through the lungs
Where is CO2 primarily transported in the blood?
In the serum
What is the difference in the way oxygen and CO2 are transported in the blood?
Oxygen is bound to hemoglobin, while CO2 is dissolved in the serum
Why does the body need to remove CO2?
Because it is a byproduct of tissue metabolism
What percentage of CO2 enters the red blood cells?
A very small amount of it
Where is carbon dioxide mostly transported in the blood?
Serum
What is the primary role of haemoglobin in the body?
To transport oxygen in the blood
How does CO2 enter the blood stream?
As a waste product of tissue metabolism
What is the difference between oxygen and carbon dioxide transport in the blood?
CO2 is transported in the serum, while oxygen is transported in the RBC
Why is it important to remove CO2 from the body?
Because it is a waste product of tissue metabolism
Test your knowledge on haemoglobin and its role in carrying oxygen throughout the body. Learn why iron deficiency can lead to feelings of fatigue and tiredness.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
