338860
Assertion : Human lungs have enormous surface area for the exchange of gases. Reason : In human, glottis is guarded by epiglottis.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Gas exchange between the air that humans breathe in and the blood within the circulatory system is vital to survival. Gas exchange describes the exchange of oxygen and carbon dioxide across the respiratory membrane. Due to the many surfacewalls of the alveoli, the lungs have a surface area that is approximately the size of a tennis court. This large surface area allows for rapid gas exchange. Carbon is diffused into the alveoli and oxygen is diffused out from the alveoli into the blood. Each alveolus is connected to a web of capillaries which bring oxygen-deficient red blood cells close to the alveoli so that they may absorb diffused oxygen. This intricate and expansive capillary network allows for the continuous exchange of large volumes of gas. The glottis is guarded by epiglottis because it prevents the entry of food in wind pipe. If the food enters wind pipe, then it chokes it, leading to the death of the person.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338861
Assertion : Bacteria that reach the lungs rarely survive. Reason : Alveoli of normal lungs are lined by a film of lecithin which kills the bacteria.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Lecithin is the substance of surfactant produced in the foetal lungs to regulate the surface tension of fluid in lungs. Lecithin increases resistance to disease by its function in thymus gland. Essential Fatty Acids induce our immune cells to kill bacteria. Here fatty acid peroxides produce bacteriocidal hydrogen peroxide. But there are some bacteria by secreting lecithinase convert lecithin into chemicals which may cause heart disease.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338862
The figure below shows ventral view of human thorax. Labelled A, B & C find the correct option
1 B - The rib cage and A- diaphragm
2 A - Sternum
3 B - Bronchiole, A - Lungs
4 A - Manubrium, C - Lungs
Explanation:
Lungs are protected by the rib cage, which is made up of 12 sets of ribs. These ribs are connected to your spine in your back and go around the lungs to keep them safe. Beneath the lungs is the diaphragm a dome-shaped muscle that works with the lungs to allow us to inhale (breathe in) and exhale (breathe out) air.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338863
Which membrane is in close contact with the lung surface?
1 Capillary endothelium
2 Inner pleural membrane
3 Outer pleural membrane
4 Basement membrane
Explanation:
Inner pleural membrane is in close contact with the lung surface.
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BIOXI17: BREATHING AND EXCHANGE OF GASES
338860
Assertion : Human lungs have enormous surface area for the exchange of gases. Reason : In human, glottis is guarded by epiglottis.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Gas exchange between the air that humans breathe in and the blood within the circulatory system is vital to survival. Gas exchange describes the exchange of oxygen and carbon dioxide across the respiratory membrane. Due to the many surfacewalls of the alveoli, the lungs have a surface area that is approximately the size of a tennis court. This large surface area allows for rapid gas exchange. Carbon is diffused into the alveoli and oxygen is diffused out from the alveoli into the blood. Each alveolus is connected to a web of capillaries which bring oxygen-deficient red blood cells close to the alveoli so that they may absorb diffused oxygen. This intricate and expansive capillary network allows for the continuous exchange of large volumes of gas. The glottis is guarded by epiglottis because it prevents the entry of food in wind pipe. If the food enters wind pipe, then it chokes it, leading to the death of the person.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338861
Assertion : Bacteria that reach the lungs rarely survive. Reason : Alveoli of normal lungs are lined by a film of lecithin which kills the bacteria.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Lecithin is the substance of surfactant produced in the foetal lungs to regulate the surface tension of fluid in lungs. Lecithin increases resistance to disease by its function in thymus gland. Essential Fatty Acids induce our immune cells to kill bacteria. Here fatty acid peroxides produce bacteriocidal hydrogen peroxide. But there are some bacteria by secreting lecithinase convert lecithin into chemicals which may cause heart disease.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338862
The figure below shows ventral view of human thorax. Labelled A, B & C find the correct option
1 B - The rib cage and A- diaphragm
2 A - Sternum
3 B - Bronchiole, A - Lungs
4 A - Manubrium, C - Lungs
Explanation:
Lungs are protected by the rib cage, which is made up of 12 sets of ribs. These ribs are connected to your spine in your back and go around the lungs to keep them safe. Beneath the lungs is the diaphragm a dome-shaped muscle that works with the lungs to allow us to inhale (breathe in) and exhale (breathe out) air.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338863
Which membrane is in close contact with the lung surface?
1 Capillary endothelium
2 Inner pleural membrane
3 Outer pleural membrane
4 Basement membrane
Explanation:
Inner pleural membrane is in close contact with the lung surface.
338860
Assertion : Human lungs have enormous surface area for the exchange of gases. Reason : In human, glottis is guarded by epiglottis.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Gas exchange between the air that humans breathe in and the blood within the circulatory system is vital to survival. Gas exchange describes the exchange of oxygen and carbon dioxide across the respiratory membrane. Due to the many surfacewalls of the alveoli, the lungs have a surface area that is approximately the size of a tennis court. This large surface area allows for rapid gas exchange. Carbon is diffused into the alveoli and oxygen is diffused out from the alveoli into the blood. Each alveolus is connected to a web of capillaries which bring oxygen-deficient red blood cells close to the alveoli so that they may absorb diffused oxygen. This intricate and expansive capillary network allows for the continuous exchange of large volumes of gas. The glottis is guarded by epiglottis because it prevents the entry of food in wind pipe. If the food enters wind pipe, then it chokes it, leading to the death of the person.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338861
Assertion : Bacteria that reach the lungs rarely survive. Reason : Alveoli of normal lungs are lined by a film of lecithin which kills the bacteria.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Lecithin is the substance of surfactant produced in the foetal lungs to regulate the surface tension of fluid in lungs. Lecithin increases resistance to disease by its function in thymus gland. Essential Fatty Acids induce our immune cells to kill bacteria. Here fatty acid peroxides produce bacteriocidal hydrogen peroxide. But there are some bacteria by secreting lecithinase convert lecithin into chemicals which may cause heart disease.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338862
The figure below shows ventral view of human thorax. Labelled A, B & C find the correct option
1 B - The rib cage and A- diaphragm
2 A - Sternum
3 B - Bronchiole, A - Lungs
4 A - Manubrium, C - Lungs
Explanation:
Lungs are protected by the rib cage, which is made up of 12 sets of ribs. These ribs are connected to your spine in your back and go around the lungs to keep them safe. Beneath the lungs is the diaphragm a dome-shaped muscle that works with the lungs to allow us to inhale (breathe in) and exhale (breathe out) air.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338863
Which membrane is in close contact with the lung surface?
1 Capillary endothelium
2 Inner pleural membrane
3 Outer pleural membrane
4 Basement membrane
Explanation:
Inner pleural membrane is in close contact with the lung surface.
338860
Assertion : Human lungs have enormous surface area for the exchange of gases. Reason : In human, glottis is guarded by epiglottis.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Gas exchange between the air that humans breathe in and the blood within the circulatory system is vital to survival. Gas exchange describes the exchange of oxygen and carbon dioxide across the respiratory membrane. Due to the many surfacewalls of the alveoli, the lungs have a surface area that is approximately the size of a tennis court. This large surface area allows for rapid gas exchange. Carbon is diffused into the alveoli and oxygen is diffused out from the alveoli into the blood. Each alveolus is connected to a web of capillaries which bring oxygen-deficient red blood cells close to the alveoli so that they may absorb diffused oxygen. This intricate and expansive capillary network allows for the continuous exchange of large volumes of gas. The glottis is guarded by epiglottis because it prevents the entry of food in wind pipe. If the food enters wind pipe, then it chokes it, leading to the death of the person.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338861
Assertion : Bacteria that reach the lungs rarely survive. Reason : Alveoli of normal lungs are lined by a film of lecithin which kills the bacteria.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Lecithin is the substance of surfactant produced in the foetal lungs to regulate the surface tension of fluid in lungs. Lecithin increases resistance to disease by its function in thymus gland. Essential Fatty Acids induce our immune cells to kill bacteria. Here fatty acid peroxides produce bacteriocidal hydrogen peroxide. But there are some bacteria by secreting lecithinase convert lecithin into chemicals which may cause heart disease.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338862
The figure below shows ventral view of human thorax. Labelled A, B & C find the correct option
1 B - The rib cage and A- diaphragm
2 A - Sternum
3 B - Bronchiole, A - Lungs
4 A - Manubrium, C - Lungs
Explanation:
Lungs are protected by the rib cage, which is made up of 12 sets of ribs. These ribs are connected to your spine in your back and go around the lungs to keep them safe. Beneath the lungs is the diaphragm a dome-shaped muscle that works with the lungs to allow us to inhale (breathe in) and exhale (breathe out) air.
BIOXI17: BREATHING AND EXCHANGE OF GASES
338863
Which membrane is in close contact with the lung surface?
1 Capillary endothelium
2 Inner pleural membrane
3 Outer pleural membrane
4 Basement membrane
Explanation:
Inner pleural membrane is in close contact with the lung surface.
