Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 37 views

    Exercise 1: (6pts) Transport of Respiratory Gases

    Uploaded by

    Majed Mashmoushy
    1. The document is a biology worksheet containing multiple exercises about respiratory gas transport and exchange. 2. Exercise 1 discusses hemoglobin and its transport of oxygen and carbon dioxide in the blood, and the effect of carbon monoxide gas on oxyhemoglobin levels. 3. Exercise 2 examines gas exchange at the tissue level, comparing oxygen and carbon dioxide pressures in blood entering tissues versus within cells. 4. Exercise 3 is about sickle cell anemia and how it affects hemoglobin and oxygen binding in healthy versus anemic individuals. 5. Exercise 4 diagrams gas exchange between blood and alveoli, asking about gas pressures, diffusion direction, and blood color and chemical transport equations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Exercise 1: (6pts) Transport of Respiratory Gases

    Uploaded by

    Majed Mashmoushy
    37 views3 pages
    1. The document is a biology worksheet containing multiple exercises about respiratory gas transport and exchange. 2. Exercise 1 discusses hemoglobin and its transport of oxygen and carbon dioxide in the blood, and the effect of carbon monoxide gas on oxyhemoglobin levels. 3. Exercise 2 examines gas exchange at the tissue level, comparing oxygen and carbon dioxide pressures in blood entering tissues versus within cells. 4. Exercise 3 is about sickle cell anemia and how it affects hemoglobin and oxygen binding in healthy versus anemic individuals. 5. Exercise 4 diagrams gas exchange between blood and alveoli, asking about gas pressures, diffusion direction, and blood color and chemical transport equations.

    Original Title

    Untitled

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    1. The document is a biology worksheet containing multiple exercises about respiratory gas transport and exchange. 2. Exercise 1 discusses hemoglobin and its transport of oxygen and carbon dioxide in the blood, and the effect of carbon monoxide gas on oxyhemoglobin levels. 3. Exercise 2 examines gas exchange at the tissue level, comparing oxygen and carbon dioxide pressures in blood entering tissues versus within cells. 4. Exercise 3 is about sickle cell anemia and how it affects hemoglobin and oxygen binding in healthy versus anemic individuals. 5. Exercise 4 diagrams gas exchange between blood and alveoli, asking about gas pressures, diffusion direction, and blood color and chemical transport equations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    37 views3 pages

    Exercise 1: (6pts) Transport of Respiratory Gases

    Uploaded by

    Majed Mashmoushy
    1. The document is a biology worksheet containing multiple exercises about respiratory gas transport and exchange. 2. Exercise 1 discusses hemoglobin and its transport of oxygen and carbon dioxide in the blood, and the effect of carbon monoxide gas on oxyhemoglobin levels. 3. Exercise 2 examines gas exchange at the tissue level, comparing oxygen and carbon dioxide pressures in blood entering tissues versus within cells. 4. Exercise 3 is about sickle cell anemia and how it affects hemoglobin and oxygen binding in healthy versus anemic individuals. 5. Exercise 4 diagrams gas exchange between blood and alveoli, asking about gas pressures, diffusion direction, and blood color and chemical transport equations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 3

    Second Public School-Jbeil Class: Grade Nine

    Teacher :Amal Reslan Subject: Biology

    Exercise 1: (6pts) Transport of Respiratory Gases

    Hemoglobin, which is a red protein rich in iron, makes up the majority of red blood cells
    proteins.
    Document 1 represents the percentages of oxygen and carbon dioxide gas transported by
    hemoglobin and plasma in the blood.
    1- Compare
    1.1- The percentage of
    oxygen transported by
    hemoglobin and plasma.
    1.2- The percentage of carbon
    dioxide transported by
    hemoglobin and plasma.
    2- Indicate the constituent of blood
    that transports most of:
    2.1- Carbon dioxide gas.
    2.2- Oxygen gas.

    Smoking leads to the inhaling of a toxic gas


    named carbon monoxide (CO).To determine the
    effect of CO gas on the transport of oxygen gas by
    hemoglobin, the percentage of oxy-hemoglobin
    (%) as a function of the concentration of carbon
    monoxide gas (g/l) is represented in document2.

    3- Transform the graph of document 2 into a


    table.
    4- Analyze the graph in document 2.
    5- Draw out a conclusion concerning the
    action of CO gas on hemoglobin.

    Exercise 2: (5 pts) Gas Exchange in Tissues

    The blood passes from the lungs to the organs through the heart. It transports oxygen gas in the
    form of oxyhemoglobin. Then, at the level of the tissues oxyhemoglobin decomposes into oxygen
    and hemoglobin. In order to study the direction of diffusion of oxygen gas and carbon dioxide gas
    at the level of the tissue, we measure the pressures of these two gases in the blood entering the
    tissue and in the cells. The obtained values are given in document 1.
    Pressure in mm of mercury
    In the blood entering the
    in the cells
    tissue
    Oxygen 100 30
    Carbon dioxide 40 46
    Document 1
    1- Pose the problem at the origin of this experiment.
    2- Pick out:
    2.1- The form of oxygen transported by the blood.
    2.2- The statement that indicates that the combination of oxygen with the hemoglobin is
    reversible.
    3- Draw a histogram showing the pressures of oxygen gas and carbon dioxide gas in the
    blood entering the tissue and in the cells.
    4- Compare the pressures of oxygen gas and carbon dioxide gas in the blood entering the
    tissue and the cells.
    5- Draw out the direction of diffusion of oxygen and carbon dioxide between the blood
    entering the tissue and the cells.

    Exercise 3: (5pts) Sickle Cell Anemia

    Sickle cell anemia is a disease characterized by an abnormal and non-functional formation of


    hemoglobin, a molecule found on Erythrocytes, responsible for the transportation of oxygen gas.
    The percentages of HbO8 (%) in a function of oxygen
    pressure (mm of Hg) are measured in a healthy individual 1
    and an anemic individual 2. The results are presented in
    document 1.

    1-1.1- Pick out from the text the cause of sickle cell
    anemia.
    1-1.2- Formulate a hypothesis that explains why the
    percentage of oxyhemoglobin (HbO8) remains 10%
    at 20 mm of Hg in individual 2.
    2- Analyze the obtained results. Document1
    3- “Oxygen gas binds rapidly and reversibly with hemoglobin “
    3.1- Write the chemical equation that represents this statement.
    3.2- Indicate the consequences of the variation of the percentage of oxyhemoglobin (HbO 8) on
    the blood
    color.

    Exercise 4: (6 pts) Exchange of oxygen gas in the alveolus


    The functional diagram below reveals the exchange of oxygen gas between blood and
    pulmonary alveolus.
    1-Construct a histogram that
    shows the pressure of
    oxygen gas [PO2] and that of
    carbon dioxide gas [PCO 2 ]
    in the various media
    mentioned in the functional
    diagram.

    2-Explain why oxygen gas


    diffuses in the direction
    alveolus blood

    3-Identify the color of blood


    entering and leaving the
    alveolus.
    4- a- In what forms are oxygen and carbon dioxide transported by blood.
    b- Write the corresponding chemical equations.

    You might also like