55 Questions
What is the primary function of O2 in the body's metabolic processes?
To provide energy for the cells' metabolic processes
What is the role of haemoglobin in the process of gas exchange?
To transport O2 from the lungs to the tissues
What happens to CO2 once it is produced by the cells' metabolic processes?
It is released into the plasma in the capillaries
In which location does the exchange of O2 and CO2 primarily occur?
In the capillary beds
What is the role of the capillary beds in the process of gas exchange?
To facilitate the exchange of O2 and CO2 between the blood and the tissues
What is the primary function of haemoglobin in the process of gas exchange?
Releasing O2 into the tissues for metabolic processes
Where does the majority of CO2 produced by cells go during gas exchange?
Transported by the red blood cells to the lungs
What happens to the O2 carried by the red blood cells when it reaches the tissues?
It is released for use in cellular metabolic processes
Apart from using O2 for metabolic processes, what do cells produce as a byproduct during gas exchange?
CO2 as a waste product
What is the primary role of the lungs in the process of gas exchange?
Exchanging O2 and CO2 with the external environment
Haemoglobin is present in the plasma of the blood.
False
The majority of CO2 produced by cells is carried by red blood cells during gas exchange.
False
Cells release O2 into the plasma as a waste product during gas exchange.
False
Gas exchange occurs primarily in the lungs.
False
During gas exchange, O2 is released from the plasma into the tissues in the capillary beds.
True
When we inhale, ______ is taken up by haemoglobin
O2
Cells use the ______ for their metabolic processes and they produce CO2 as a waste product
O2
CO2 diffuses from the tissues into the ______ in the capillaries
plasma
O2 is released into the ______ in the capillary beds
tissues
CO2 is released when it reaches the ______
lungs
Match the following components of the gas exchange process with their functions:
Haemoglobin = Carries O2 from lungs to tissues RBC = Transports CO2 from tissues to lungs Capillary beds = Location of O2 release and CO2 uptake Plasma = Carries small amount of CO2 from tissues to lungs
Match the following components of the gas exchange process with their locations:
Haemoglobin = RBC O2 release = Capillary beds CO2 uptake = Lungs CO2 transport = Plasma
Match the following components of the gas exchange process with the substances they transport:
Haemoglobin = O2 RBC = CO2 Plasma = O2 and CO2 Capillary beds = O2 and CO2
Match the following components of the gas exchange process with their roles:
Cells = Use O2 and produce CO2 RBC = Carry O2 and CO2 Lungs = Exchange O2 and CO2 Capillary beds = Facilitate O2 and CO2 exchange
Match the following components of the gas exchange process with their modes of transport:
O2 = Diffuses from plasma to tissues CO2 = Bound to haemoglobin in RBC
What is the main function of leucocytes in the body?
To protect the body against infection and disease
What is the difference between granulocytes and agranulocytes?
Granulocytes have granules in the cytoplasm, while agranulocytes do not
What happens to circulating leucocytes when they receive chemical signals from an area of infection or inflammation?
They squeeze out of the thin-walled capillaries and travel to the area of damage
What type of cells release chemical signals to attract leucocytes when there is an area of infection or inflammation?
Damaged tissue cells
Where do leucocytes travel to when they receive chemical signals from an area of infection or inflammation?
The area of damage
What is the main function of leucocytes in the body?
Protecting against infection
Which type of leucocytes has granules in the cytoplasm?
Eosinophils
What triggers circulating leucocytes to leave thin-walled capillaries and travel to the area of damage?
Chemical signals from the damaged tissue
Which part of the body releases chemical signals to attract leucocytes during an infection or inflammation?
Damaged tissue
What is the distinguishing feature between granulocytes and agranulocytes?
Granulocytes have granules in the cytoplasm
Leucocytes are responsible for transporting oxygen throughout the body.
False
Granulocytes and agranulocytes are the two types of leucocytes that transport oxygen.
False
Leucocytes are produced in the lungs during gas exchange.
False
Leucocytes leave the capillaries and travel to the area of damage in response to chemical signals.
True
Agranulocytes are a type of leucocyte that has granules in the cytoplasm.
False
Leucocytes are also known as ______ Blood Cells
White
The two types of leucocytes are ______ and agranulocytes
Granulocytes
Leucocytes help with ______ in the body
healing
When there is an area of infection or inflammation, the damaged tissue releases chemical signals that tell circulating ______ that they are needed
leucocytes
Circulating leucocytes travel to the area of ______ to do their job
damage
Match the types of leucocytes with their characteristic:
Granulocytes = WBC with granules in the cytoplasm Agranulocytes = WBC that lack granules in the cytoplasm Leucocytes = WBC that transport oxygen WBC = White Blood Cells
Match the locations with the actions of leucocytes:
Thin-walled capillaries = Leucocytes squeeze out of Area of damage = Leucocytes travel to Lungs = Leucocytes are produced in Tissues = Leucocytes release chemical signals in
Match the responses with the stimuli of leucocytes:
Chemical signals = Leucocytes squeeze out of capillaries O2 = Cells use for metabolic processes Infection or inflammation = Leucocytes travel to the area of Damaged tissue = Leucocytes release chemical signals
Match the leucocytes' functions with the body's processes:
Protecting against infection and disease = Leucocytes' primary function Transporting oxygen = Leucocytes' primary function Helping with healing = Leucocytes' role in the body Gas exchange = Leucocytes' primary function
Match the chemical signals with the responses of damaged tissue:
Chemical signals = Leucocytes are told they are needed O2 = Cells release as a waste product CO2 = Cells produce as a waste product Infection or inflammation = Damaged tissue releases chemical signals
Which granulocyte is primarily responsible for parasitism and allergies?
Eosinophil
Which type of granulocyte is most common in circulation?
Neutrophil
Which granulocyte has dark purple cytoplasmic granules and is part of the inflammatory reaction?
Basophil
Which granulocyte is responsible for inflammation and infection, being the cells that make up pus?
Neutrophil
Which granulocyte is not common and functions in part of the inflammatory reaction?
Basophil
Learn about the process of gas exchange in respiration, focusing on the uptake of oxygen by haemoglobin, transport through the circulatory system, and release into tissues, as well as the production and removal of carbon dioxide. Understand how cells utilize oxygen for metabolic processes and release carbon dioxide as a waste product.
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