45 Questions
Where are erythrocytes produced in the body?
In the bone marrow
What is the primary function of erythrocytes in the body?
To carry oxygen to the tissues
What is the average lifespan of erythrocytes in the body?
110 days
What is the process by which erythrocytes are broken down in the body?
Haemolysis
Where do erythrocytes typically reside in the body unless a blood vessel is damaged?
In the cardiovascular system
Erythrocytes are primarily produced in the liver.
False
The spleen is responsible for producing erythropoietin, a hormone that stimulates erythrocyte production.
False
The average lifespan of an erythrocyte is approximately 30 days.
False
Erythrocytes can leave the cardiovascular system if they are in dire need of oxygen.
False
Haemoglobin plays a crucial role in carrying oxygen to the tissues.
True
Match the following sites with their functions in the erythrocyte lifecycle:
Bone marrow = Production of erythrocytes Spleen = Breakdown of erythrocytes Liver = Breakdown of erythrocytes Kidneys = Production of erythropoietin
Match the following factors with their roles in the erythrocyte lifecycle:
Erythropoietin = Stimulates erythrocyte production Haemoglobin = Carries oxygen to the tissues Haemolysis = Breakdown of erythrocytes Oxygen = Stimulates erythrocyte production
Match the following components with their primary locations in a healthy individual:
Erythrocytes = Cardiovascular system Erythropoietin = Kidneys Haemoglobin = Liver Haemolysis = Spleen and liver
Match the following descriptions with their corresponding components in the erythrocyte lifecycle:
Hormone that stimulates erythrocyte production = Erythropoietin Protein that carries oxygen to the tissues = Haemoglobin Process by which erythrocytes are broken down = Haemolysis Organ where erythrocytes are produced = Liver
Match the following characteristics with their corresponding descriptions in the erythrocyte lifecycle:
Average lifespan = 110 days Primary function = Carry oxygen to the tissues Site of production = Bone marrow Location in a healthy individual = Spleen and liver
What is the function of the iron atom in haemoglobin molecules?
To carry oxygen molecules
Why are erythrocytes packed full of haemoglobin molecules?
To allow them to carry more oxygen
What is oxyhaemoglobin?
Oxygenated haemoglobin
Why do people feel tired when they are iron deficient?
Because iron is necessary for haemoglobin to carry oxygen
How many oxygen molecules can each haemoglobin molecule bind?
Four
What is the function of the iron atom in haemoglobin molecules?
To give haemoglobin its red color
Why are erythrocytes packed full of haemoglobin molecules?
To make them more efficient at carrying oxygen
What is the result of each molecule of haemoglobin being able to bind four oxygen molecules?
Erythrocytes can carry more oxygen
What is deoxyhaemoglobin?
Deoxygenated haemoglobin
What is the significance of oxyhaemoglobin?
It is the state of haemoglobin when it has bound to oxygen
Match the following haemoglobin components with their descriptions:
Protein molecules = Make up the haemoglobin molecule Iron (Fe) atom = Attaches to the protein molecules Oxygen molecules = Carried by the haemoglobin molecule Haemoglobin molecule = Made up of 4 protein molecules
Match the following haemoglobin states with their colours:
Oxyhaemoglobin = Red Deoxyhaemoglobin = Purplish-blue Haemoglobin = No distinct colour Erythrocytes = Reddish-yellow
Match the following erythrocyte characteristics with their benefits:
Packed with haemoglobin molecules = Can carry more oxygen Contain iron = Essential for oxygen binding Produced in the liver = Incorrect - produced in the bone marrow Can leave the cardiovascular system = Incorrect - does not occur under normal conditions
Match the following erythrocyte-related terms with their definitions:
Oxyhaemoglobin = Oxygenated haemoglobin Deoxyhaemoglobin = Deoxygenated haemoglobin Haemoglobin = Protein molecule in erythrocytes Erythrocyte = Red blood cell
Match the following components with their roles in oxygen transport:
Haemoglobin molecule = Binds oxygen molecules Iron (Fe) atom = Allows oxygen binding Erythrocytes = Transports oxygen in the blood Oxygen molecules = Carried by haemoglobin
Each molecule of haemoglobin is made up of 4 ______ molecules that have an iron atom attached to it
protein
Haemoglobin is ______ contained in erythrocytes and is responsible for carrying oxygen
protein
Erythrocytes are packed full of ______ molecules
haemoglobin
______haemoglobin = oxygenated haemoglobin - red
oxy
______haemoglobin = deoxygenated haemoglobin – purplish-blue
deoxy
What is the main way that carbon dioxide is transported in the body?
Dissolved and transported in the serum
What is the primary method by which the body removes carbon dioxide?
Through the exhalation of breath
Why is carbon dioxide transported differently than oxygen?
Because CO2 is less soluble in water
What is the purpose of removing carbon dioxide from the body?
To remove a waste product of tissue metabolism
How does the body transport carbon dioxide from the cells to the lungs?
Through the bloodstream
What is the primary method by which the body removes carbon dioxide?
By exhaling it through the lungs
How is carbon dioxide mostly transported in the body?
Dissolved in the serum
What is the role of the serum in transporting carbon dioxide?
To dissolve and transport carbon dioxide
Why is it necessary to remove carbon dioxide from the body?
To remove a waste product
Where is carbon dioxide transported from in the body?
From the cells to the lungs
Learn about the life cycle of erythrocytes, also known as red blood cells, including their production, lifespan, and function in the human body. Understand how they are produced in the bone marrow, and broken down in the spleen and liver. Discover their crucial role in carrying oxygen to tissues.
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