Gas Exchange in Respiration
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Questions and Answers

What is the primary function of O2 in the body's metabolic processes?

  • To facilitate the transport of CO2 in the blood
  • To release energy from the cells
  • To produce CO2 as a waste product
  • To provide energy for the cells' metabolic processes (correct)

    • What is the role of haemoglobin in the process of gas exchange?

  • To transport O2 from the lungs to the tissues (correct)
  • To produce energy from the cells' metabolic processes
  • To release CO2 into the lungs
  • To facilitate the diffusion of CO2 from the tissues into the plasma

    • What happens to CO2 once it is produced by the cells' metabolic processes?

  • It is transported directly to the lungs for exhalation
  • It is stored in the liver for later use
  • It is released into the plasma in the capillaries (correct)
  • It is broken down into oxygen and water

    • In which location does the exchange of O2 and CO2 primarily occur?

    <p>In the capillary beds</p> Signup and view all the answers

    What is the role of the capillary beds in the process of gas exchange?

    <p>To facilitate the exchange of O2 and CO2 between the blood and the tissues</p> Signup and view all the answers

    What is the primary function of haemoglobin in the process of gas exchange?

    <p>Releasing O2 into the tissues for metabolic processes</p> Signup and view all the answers

    Where does the majority of CO2 produced by cells go during gas exchange?

    <p>Transported by the red blood cells to the lungs</p> Signup and view all the answers

    What happens to the O2 carried by the red blood cells when it reaches the tissues?

    <p>It is released for use in cellular metabolic processes</p> Signup and view all the answers

    Apart from using O2 for metabolic processes, what do cells produce as a byproduct during gas exchange?

    <p>CO2 as a waste product</p> Signup and view all the answers

    What is the primary role of the lungs in the process of gas exchange?

    <p>Exchanging O2 and CO2 with the external environment</p> Signup and view all the answers

    Haemoglobin is present in the plasma of the blood.

    <p>False</p> Signup and view all the answers

    The majority of CO2 produced by cells is carried by red blood cells during gas exchange.

    <p>False</p> Signup and view all the answers

    Cells release O2 into the plasma as a waste product during gas exchange.

    <p>False</p> Signup and view all the answers

    Gas exchange occurs primarily in the lungs.

    <p>False</p> Signup and view all the answers

    During gas exchange, O2 is released from the plasma into the tissues in the capillary beds.

    <p>True</p> Signup and view all the answers

    When we inhale, ______ is taken up by haemoglobin

    <p>O2</p> Signup and view all the answers

    Cells use the ______ for their metabolic processes and they produce CO2 as a waste product

    <p>O2</p> Signup and view all the answers

    CO2 diffuses from the tissues into the ______ in the capillaries

    <p>plasma</p> Signup and view all the answers

    O2 is released into the ______ in the capillary beds

    <p>tissues</p> Signup and view all the answers

    CO2 is released when it reaches the ______

    <p>lungs</p> Signup and view all the answers

    Match the following components of the gas exchange process with their functions:

    <p>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</p> Signup and view all the answers

    Match the following components of the gas exchange process with their locations:

    <p>Haemoglobin = RBC O2 release = Capillary beds CO2 uptake = Lungs CO2 transport = Plasma</p> Signup and view all the answers

    Match the following components of the gas exchange process with the substances they transport:

    <p>Haemoglobin = O2 RBC = CO2 Plasma = O2 and CO2 Capillary beds = O2 and CO2</p> Signup and view all the answers

    Match the following components of the gas exchange process with their roles:

    <p>Cells = Use O2 and produce CO2 RBC = Carry O2 and CO2 Lungs = Exchange O2 and CO2 Capillary beds = Facilitate O2 and CO2 exchange</p> Signup and view all the answers

    Match the following components of the gas exchange process with their modes of transport:

    <p>O2 = Diffuses from plasma to tissues CO2 = Bound to haemoglobin in RBC</p> Signup and view all the answers

    What is the main function of leucocytes in the body?

    <p>To protect the body against infection and disease</p> Signup and view all the answers

    What is the difference between granulocytes and agranulocytes?

    <p>Granulocytes have granules in the cytoplasm, while agranulocytes do not</p> Signup and view all the answers

    What happens to circulating leucocytes when they receive chemical signals from an area of infection or inflammation?

    <p>They squeeze out of the thin-walled capillaries and travel to the area of damage</p> Signup and view all the answers

    What type of cells release chemical signals to attract leucocytes when there is an area of infection or inflammation?

    <p>Damaged tissue cells</p> Signup and view all the answers

    Where do leucocytes travel to when they receive chemical signals from an area of infection or inflammation?

    <p>The area of damage</p> Signup and view all the answers

    What is the main function of leucocytes in the body?

    <p>Protecting against infection</p> Signup and view all the answers

    Which type of leucocytes has granules in the cytoplasm?

    <p>Eosinophils</p> Signup and view all the answers

    What triggers circulating leucocytes to leave thin-walled capillaries and travel to the area of damage?

    <p>Chemical signals from the damaged tissue</p> Signup and view all the answers

    Which part of the body releases chemical signals to attract leucocytes during an infection or inflammation?

    <p>Damaged tissue</p> Signup and view all the answers

    What is the distinguishing feature between granulocytes and agranulocytes?

    <p>Granulocytes have granules in the cytoplasm</p> Signup and view all the answers

    Leucocytes are responsible for transporting oxygen throughout the body.

    <p>False</p> Signup and view all the answers

    Granulocytes and agranulocytes are the two types of leucocytes that transport oxygen.

    <p>False</p> Signup and view all the answers

    Leucocytes are produced in the lungs during gas exchange.

    <p>False</p> Signup and view all the answers

    Leucocytes leave the capillaries and travel to the area of damage in response to chemical signals.

    <p>True</p> Signup and view all the answers

    Agranulocytes are a type of leucocyte that has granules in the cytoplasm.

    <p>False</p> Signup and view all the answers

    Leucocytes are also known as ______ Blood Cells

    <p>White</p> Signup and view all the answers

    The two types of leucocytes are ______ and agranulocytes

    <p>Granulocytes</p> Signup and view all the answers

    Leucocytes help with ______ in the body

    <p>healing</p> Signup and view all the answers

    When there is an area of infection or inflammation, the damaged tissue releases chemical signals that tell circulating ______ that they are needed

    <p>leucocytes</p> Signup and view all the answers

    Circulating leucocytes travel to the area of ______ to do their job

    <p>damage</p> Signup and view all the answers

    Match the types of leucocytes with their characteristic:

    <p>Granulocytes = WBC with granules in the cytoplasm Agranulocytes = WBC that lack granules in the cytoplasm Leucocytes = WBC that transport oxygen WBC = White Blood Cells</p> Signup and view all the answers

    Match the locations with the actions of leucocytes:

    <p>Thin-walled capillaries = Leucocytes squeeze out of Area of damage = Leucocytes travel to Lungs = Leucocytes are produced in Tissues = Leucocytes release chemical signals in</p> Signup and view all the answers

    Match the responses with the stimuli of leucocytes:

    <p>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</p> Signup and view all the answers

    Match the leucocytes' functions with the body's processes:

    <p>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</p> Signup and view all the answers

    Match the chemical signals with the responses of damaged tissue:

    <p>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</p> Signup and view all the answers

    Which granulocyte is primarily responsible for parasitism and allergies?

    <p>Eosinophil</p> Signup and view all the answers

    Which type of granulocyte is most common in circulation?

    <p>Neutrophil</p> Signup and view all the answers

    Which granulocyte has dark purple cytoplasmic granules and is part of the inflammatory reaction?

    <p>Basophil</p> Signup and view all the answers

    Which granulocyte is responsible for inflammation and infection, being the cells that make up pus?

    <p>Neutrophil</p> Signup and view all the answers

    Which granulocyte is not common and functions in part of the inflammatory reaction?

    <p>Basophil</p> Signup and view all the answers

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