How is the alveoli adapted for gas exchange between air in the lungs and blood in the capillaries?

How is the alveoli adapted for gas exchange between air in the lungs and blood in the capillaries?
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The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases. (b) D - Lower end of lungs - Diaphragm pulls it down during inspiration. (c) A - Trachea - Long tube supported by complete cartilaginous rings for conducting inspired air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Description : The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - ... air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Last Answer : (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases.

(a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to lungs, Aorta to body, Pulmonary veins from lungs. (b) What is the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology

Description : (a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to ... the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology

Last Answer : (a) A schematic representation of transportation and exchange of oxygen and carbon dioxide during transportation of blood in human beings (b) It is necessary to separate oxygenated and deoxygenated ... . The separation of oxygenated and deoxygenated blood provides high oxygen supply to the organs.

The exchange of gases in the alveoli of the lungs takes place by (a) passive transport (b) active transport (c) osmosis (d) simple diffusion.

Description : The exchange of gases in the alveoli of the lungs takes place by (a) passive transport (b) active transport (c) osmosis (d) simple diffusion.

Last Answer : d) simple diffusion.

The diffusion membrane is made up of: (A) Thick columnar epithelium of alveoli (B) Endothelium of alveolar capillaries (C) Basement substances in betw

Description : The diffusion membrane is made up of: (A) Thick columnar epithelium of alveoli (B) Endothelium of alveolar capillaries (C) Basement substances in betw

Last Answer : The diffusion membrane is made up of: (A) Thick columnar epithelium of alveoli (B) ... (C) Basement substances in between capillaries and alveoli

The diffusion membrane is made up of: (A) Thick columnar epithelium of alveoli (B) Endothelium of alveolar capillaries (C) Basement substances in betw

Description : The diffusion membrane is made up of: (A) Thick columnar epithelium of alveoli (B) Endothelium of alveolar capillaries (C) Basement substances in betw

Last Answer : The diffusion membrane is made up of: (A) Thick columnar epithelium of alveoli (B) ... (C) Basement substances in between capillaries and alveoli

What process takes at the boundary between capillaries and the alveoli?

Description : What process takes at the boundary between capillaries and the alveoli?

Last Answer : The exchange of carbon dioxide to the lungs and oxygen from thelungs.

In man and mammals, air passes from outside into the lungs through (a) nasal cavity, larynx, pharynx, trachea, bronchi, alveoli (b) nasal cavity, larynx, pharynx, trachea, bronchioles, alveoli (c) nasal cavity, pharynx, larynx, trachea, bronchioles, bronchi, alveoli (d) nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli.

Description : In man and mammals, air passes from outside into the lungs through (a) nasal cavity, larynx, pharynx, trachea, bronchi, alveoli (b) nasal cavity, larynx, pharynx, trachea, bronchioles, ... bronchioles, bronchi, alveoli (d) nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli.

Last Answer : (d) nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli.

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of (a) inspiratory reserve volume (b) tidal volume (c) expiratory reserve volume (d) residual volume.

Description : Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of (a) inspiratory reserve volume (b) tidal volume (c) expiratory reserve volume (d) residual volume.

Last Answer : (d) residual volume.

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of: (1) Inspiratory Reserve Volume (2) Tidal Volume (3) Expiratory Reserve Volume (4) Residual Volume

Description : Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of: (1) Inspiratory Reserve Volume (2) Tidal Volume (3) Expiratory Reserve Volume (4) Residual Volume

Last Answer : (4) Residual Volume

The partial pressure of oxygen in the alveoli of the lungs is (a) equal to that in the blood (b) more than that in the blood (c) less than that in the blood (d) less than that of carbon dioxide.

Description : The partial pressure of oxygen in the alveoli of the lungs is (a) equal to that in the blood (b) more than that in the blood (c) less than that in the blood (d) less than that of carbon dioxide.

Last Answer : (b) more than that in the blood

What is the physical process through which gas exchange is accomplished in the pulmonary alveoli?

Description : What is the physical process through which gas exchange is accomplished in the pulmonary alveoli?

Last Answer : The gas exchange (entry of oxygen and exit of carbon dioxide) in the pulmonary alveoli occurs by simple diffusion in favor of the partial pressure gradient. When the oxygen partial pressure in the ... is venous blood) the oxygen exits the circulatory system. The same is true for carbon dioxide.

Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning. -Biology

Description : Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning. -Biology

Last Answer : Alveoli Nephron 1. Alveoli are functional unit of lungs. 1. Nephrons are functional unit of kidney. 2. A mature lung has about 30 crore alveoli. 2. A kidney has about ... of capillaries in alveoli. 4. The Bowman's capsule in nephron regulates the concentration of water and salts.

Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio of `CO_(2)` allow dissociation of oxyhaemoglobin.

Description : Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio of `CO_(2)` allow dissociation of oxyhaemoglobin.

Last Answer : Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio ... False. D. If both Assertion & Reason are false.

Presence of large number of alveoli around alveolar duncts opening into bronchioles in mommanlian lungs is

Description : Presence of large number of alveoli around alveolar duncts opening into bronchioles in mommanlian lungs is

Last Answer : Presence of large number of alveoli around alveolar duncts opening into bronchioles in mommanlian ... system of ventilation with little residual air

Common cold differs from pneumonia in that (a) pneumonia is a communicable disease whereas the common cold is a nutritional deficienc(b) pneumonia can be prevented by a live attenuated bacterial vaccine whereas the common cold has no effective vaccine (c) pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae (d) pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.y disease

Description : Common cold differs from pneumonia in that (a) pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease (b) pneumonia can be prevented by a live attenuated ... infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.

Last Answer : (d) pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.

How is the structure of the leaf adapted for gas exchange?

Description : How is the structure of the leaf adapted for gas exchange?

Last Answer : Stomata and the thickness of the leaf

How are the alveoli designed to maximise the exchange of gases ? -Biology

Description : How are the alveoli designed to maximise the exchange of gases ? -Biology

Last Answer : (i) The alveoli are thin walled and richly supplied with a network of blood vessels to facilitate exchange of gases between blood and the air filled in alveoli. (ii) Alveoli have balloon-like structure. Hence, provide maximum surface for exchange of gases.

How are the alveoli designed to maximise the exchange of gases? -Biology

Description : How are the alveoli designed to maximise the exchange of gases? -Biology

Last Answer : Alveoli are small pouches or sacs like structure. They are surrounded by blood capillaries. Thus a large amount of air is brought in contact with the air in the lungs. More than millions of ... area for the exchange of gases. The availability of large surface area maximises the exchange of gases.

The exchange of gases in mammals takes place in the (a) larynx (b) trachea (c) alveoli (d) bronchi

Description : The exchange of gases in mammals takes place in the (a) larynx (b) trachea (c) alveoli (d) bronchi

Last Answer : Ans:(c)

Human urine is usually acidic because (a) potassium and sodium exchange generates acidity (b) hydrogen ions are actively secreted into the filtrate (c) the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries (d) excreted plasma proteins are acidic.

Description : Human urine is usually acidic because (a) potassium and sodium exchange generates acidity (b) hydrogen ions are actively secreted into the filtrate (c) the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries (d) excreted plasma proteins are acidic.

Last Answer : (b) hydrogen ions are actively secreted into the filtrate

What is the gas exchange unit of the mammalian lungs?

Description : What is the gas exchange unit of the mammalian lungs?

Last Answer : The gas exchange units of the mammalian lungs are the alveoli. Breathing Process Review - Image Diversity: alveoli

In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves -

Description : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves -

Last Answer : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves ... efflux of `HCO_(3)^(c-)` ions from RBC

Partial pressur eof oxygen in alveoli , atmospheric air and tissue will be

Description : Partial pressur eof oxygen in alveoli , atmospheric air and tissue will be

Last Answer : Partial pressur eof oxygen in alveoli , atmospheric air and tissue will be A. 40,159,45 B. 40,0.3,45 C. 104,159,40 D. 104,0.3,45

Partial pressure of carbon dioxide in Alveoli , atmospheric air and tissures will be `:-`

Description : Partial pressure of carbon dioxide in Alveoli , atmospheric air and tissures will be `:-`

Last Answer : Partial pressure of carbon dioxide in Alveoli , atmospheric air and tissures will be `:-` A. 0.3,40,45 B. 40,0.3,45 C. 0.3,104,28 D. 104,159,40

What is the name of the tiny blood vessels that surround the alveoli?

Description : What is the name of the tiny blood vessels that surround the alveoli?

Last Answer : These are called the alveoli capillaries.

Every 100ml deoxygenated blood delivers around `___________________` `CO_(2)` to alveoli `:-`

Description : Every 100ml deoxygenated blood delivers around `___________________` `CO_(2)` to alveoli `:-`

Last Answer : Every 100ml deoxygenated blood delivers around `___________________` `CO_(2)` to alveoli `:-` A. 20ml B. 4 ml C. 5 ml D. 25ml

`{:("Respiration","Atmosphere","Alveoli","Deoxygenated blood","Oxygenated blood","Tissue"),(O_(2),159,104,B,95,D),(CO_(2),0.3,A,45,C,45):}` Correct op

Description : `{:("Respiration","Atmosphere","Alveoli","Deoxygenated blood","Oxygenated blood","Tissue"),(O_(2),159,104,B,95,D),(CO_(2),0.3,A,45,C,45):}` Correct op

Last Answer : `{:("Respiration","Atmosphere","Alveoli","Deoxygenated blood","Oxygenated blood","Tissue"),(O_(2),159,104,B,95,D) ... 45, 40, 95, 40 D. 40, 45, 40, 40

Which of the following pairs of reaction occurs most frquently in the blood surrounding alveoli ?

Description : Which of the following pairs of reaction occurs most frquently in the blood surrounding alveoli ?

Last Answer : Which of the following pairs of reaction occurs most frquently in the blood surrounding alveoli ? A. `Hb + O_(2) ... (2)CO_(3) rarr HCO_(3) + H^(+)`

Where is oxgyen in greater concentration in the alveoli just after inhalation or in the blood entering the pulmonary?

Description : Where is oxgyen in greater concentration in the alveoli just after inhalation or in the blood entering the pulmonary?

Last Answer : Need answer

Which of the following statement(s) is/are true concerning carbon dioxide kinetics? a. The amount of carbon dioxide produced is equivalent to the amount of oxygen consumed b. Carbon dioxide levels in blood, present mostly as a bicarbonate ion, can quickly change c. Normally the amount of carbon dioxide excreted through the lung is exactly equal to the amount of carbon dioxide produced in peripheral tissues d. The amount of carbon dioxide excreted is a function of ventilation of perfused alveoli

Description : Which of the following statement(s) is/are true concerning carbon dioxide kinetics? a. The amount of carbon dioxide produced is equivalent to the amount of oxygen consumed b. Carbon dioxide levels ... tissues d. The amount of carbon dioxide excreted is a function of ventilation of perfused alveoli

Last Answer : Answer: a, c, d The total amount of carbon dioxide produced by systemic metabolism is roughly equivalent to the amount of oxygen consumed (100-120 cc/m2/min, 200 cc/min in a typical ... carbon dioxide excreted is a function of ventilation of perfused alveoli (i.e. the alveolar ventilation/min).

Most of the carbon dioxide picked up by the blood in the tissues: a) dissolves in the plasma b) unites with hemoglobin c) forms microscopic bubbles d) diffuses into the alveoli

Description : Most of the carbon dioxide picked up by the blood in the tissues: a) dissolves in the plasma b) unites with hemoglobin c) forms microscopic bubbles d) diffuses into the alveoli

Last Answer : ANSWER: A -- DISSOLVES IN THE PLASMA

Animals adapted to life in air are called : (1) fossorial (2) arboreal (3) cursorial (4) volant

Description : Animals adapted to life in air are called : (1) fossorial (2) arboreal (3) cursorial (4) volant

Last Answer : (2) arboreal Explanation: Animal adapted to life in air are called arboreal. Arboreal means living in or connected with trees.

Animals adapted to life in air are called : (1) fossorial (2) arboreal (3) cursorial (4) volant

Description : Animals adapted to life in air are called : (1) fossorial (2) arboreal (3) cursorial (4) volant

Last Answer : arboreal

How are the lungs designed in human beings to maximise the area for exchange of gases ? -Biology

Description : How are the lungs designed in human beings to maximise the area for exchange of gases ? -Biology

Last Answer : Within the lungs, the air passage divides into smaller and smaller tubes, called bronchi which in turn form bronchioles. The bronchioles terminate in balloon-like structures, called alveoli. The ... vary thin walls and contain an extensive network of blood vessels to facilitate exchange of gases.

How lungs fulfill this requirement that large surface area and thin epithelium are required for gaseous exchange?

Description : How lungs fulfill this requirement that large surface area and thin epithelium are required for gaseous exchange?

Last Answer : Feel Free to Answer

Explain the exchange of gases in lungs?

Description : Explain the exchange of gases in lungs?

Last Answer : At the lungs exchange of carbon dioxide and oxygen takes place in alveoli. This process takes place by the process of diffusion. In lungs pressure of carbon dioxide is greater than pressure of carbon ... The oxygen first diffuses in fluid present in the walls of alveoli and then into the blood.

How are capillaries related to air sac?

Description : How are capillaries related to air sac?

Last Answer : they are related to air sacs because they both use specializedepithelial tissue. This tissue is only one cell layer thick.

Assertion `:` Portal system consists of veins which start from capillaries and end into capillaries. Reason `:` The hepatic portal vein carries blood

Description : Assertion `:` Portal system consists of veins which start from capillaries and end into capillaries. Reason `:` The hepatic portal vein carries blood

Last Answer : Assertion `:` Portal system consists of veins which start from capillaries and end into capillaries. ... D. If both Assertion & Reason are false.

Assertion `:` Lymph is the filtered blood from capillaries, which is rich in oxygen, but devoid of RBC. Reason `:` RBC can filter out due to small dia

Description : Assertion `:` Lymph is the filtered blood from capillaries, which is rich in oxygen, but devoid of RBC. Reason `:` RBC can filter out due to small dia

Last Answer : Assertion `:` Lymph is the filtered blood from capillaries, which is rich in oxygen, but devoid of RBC ... . D. If both Assertion & Reason are false.

Assertion `:` A portal system start and ends with blood capillaries. Reason `:` A portal system collec blood from a organ or organs and distribute thi

Description : Assertion `:` A portal system start and ends with blood capillaries. Reason `:` A portal system collec blood from a organ or organs and distribute thi

Last Answer : Assertion `:` A portal system start and ends with blood capillaries. Reason `:` A portal system collec ... . D. If both Assertion & Reason are false.

In order of study blood circulation in rat, capillaries are observe in

Description : In order of study blood circulation in rat, capillaries are observe in

Last Answer : In order of study blood circulation in rat, capillaries are observe in A. Mesentery B. Kidney to liver C. Liver D. Lung

Blood circulation that starts in capillaries and ends in capillaries is called

Description : Blood circulation that starts in capillaries and ends in capillaries is called

Last Answer : Blood circulation that starts in capillaries and ends in capillaries is called A. Portal circulation B. Hepatic circulation C. Cardiac arrest D. None

Blood capillaries are made of

Description : Blood capillaries are made of

Last Answer : Blood capillaries are made of A. Endothelium and thin coat of connective tissue B. Endothelium ... tissue and muscle fibres D. Only endothelium

Cells forming the wall of blood capillaries are called

Description : Cells forming the wall of blood capillaries are called

Last Answer : Cells forming the wall of blood capillaries are called A. Oxyntic cells - a secretion with pH ... . Endothelium cells C. Perietal cells D. Haemocytes

Networks of Blood Capillaries and Large Lymph vessel is present in :-

Description : Networks of Blood Capillaries and Large Lymph vessel is present in :-

Last Answer : Networks of Blood Capillaries and Large Lymph vessel is present in :- A. Villi B. Microvilli C. Both 1 & 2 D. Plica semilunaris

In a resting person, oxygen saturation of haemologin as blood leaves the tissue capillaries is :-

Description : In a resting person, oxygen saturation of haemologin as blood leaves the tissue capillaries is :-

Last Answer : In a resting person, oxygen saturation of haemologin as blood leaves the tissue capillaries is :- A. 0.03 B. 0.4 C. 0.46 D. 0.75

$ The antideuretic hormone (ADH) is also calle Vasopressin hormone. ! Those blood vessels which carry blood away from heart are called capillaries.

Description : $ The antideuretic hormone (ADH) is also calle Vasopressin hormone. ! Those blood vessels which carry blood away from heart are called capillaries.

Last Answer : $ The antideuretic hormone (ADH) is also calle Vasopressin hormone. ! Those blood vessels which carry blood ... wrong D. If both As and R are wrong.

High blood pressure is maintained in glomeruli than in other capillaries because

Description : High blood pressure is maintained in glomeruli than in other capillaries because

Last Answer : High blood pressure is maintained in glomeruli than in other capillaries because A. The variability ... diameter than glomerulus D. All the above

How does blood change as it passes through the capillaries around your small intestine?

Description : How does blood change as it passes through the capillaries around your small intestine?

Last Answer : What is the answer ?

Which of the following statement(s) is/are true concerning the treatment of pulmonary interstitial edema? a. Diuresis and blood transfusion is a valuable step b. Salt-poor albumin leaks through the capillaries and worsens the condition c. Mannitol is contraindicated as a diuretic in this clinical situation d. Isoproterenol is a poor choice as an ionotropic agent

Description : Which of the following statement(s) is/are true concerning the treatment of pulmonary interstitial edema? a. Diuresis and blood transfusion is a valuable step b. Salt-poor albumin leaks through the ... a diuretic in this clinical situation d. Isoproterenol is a poor choice as an ionotropic agent

Last Answer : Answer: a Treatment of pulmonary edema has two important goals, the first is to improve oxygenation if it is impaired, and the second is to minimize fibrosis and bacterial infection, which often ... leaks out , the short term effects of expanding blood volume and decrease in edema will appear