Normal diffusion capacity of gases in human lungs in order is :-

Normal diffusion capacity of gases in human lungs in order is :-
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Normal diffusion capacity of gases in human lungs in order is :- A. `O_(2) gt N_(2) gt CO_(2)` B. `CO_(2) gt ... CO_(2)` D. `O_(2) gt CO_(2) gt N_(2)`
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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.

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.

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.

Diffusion of `O_(2)` and `CO_(2)`between lungs and blood present in :-

Description : Diffusion of `O_(2)` and `CO_(2)`between lungs and blood present in :-

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What are The air sacs in your lungs that create a large surface area for diffusion called?

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What are the two gases in blood entering and leaving the lungs?

Description : What are the two gases in blood entering and leaving the lungs?

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Explain the exchange of gases in lungs?

Description : Explain the exchange of gases in lungs?

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In single celled organisms diffusion is sufficient to meet all their requirements of food, exchange of gases or removal of wastes but it is not in case of multicellular organisms. Explain the reason for this difference. -Biology

Description : In single celled organisms diffusion is sufficient to meet all their requirements of food, exchange of gases or removal of wastes but it is not in case of multicellular organisms. Explain the reason for this difference. -Biology

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Why the process of diffusion is important in exchange of gases and water in the animal and plant cell ? -Biology

Description : Why the process of diffusion is important in exchange of gases and water in the animal and plant cell ? -Biology

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The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the deoxygenated blood through diffusion bec

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Which of the following factor can affect the rate of diffusion of gases `?`

Description : Which of the following factor can affect the rate of diffusion of gases `?`

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Description : When does diffusion of gases takes place?

Last Answer : Diffusion of gases takes place when the gases do not react with one another.

Pick out the wrong statement. (A) The mole fraction of solute is directly proportional to the molality of a 'dilute' solution (B) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is nonlinear in the case of steady state unimolal unidirectional diffusion (C) Azeotropes obey Raoult's law at all temperature (D) The relative volatility of a binary mixture at the Azeotropic composition is 1

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Last Answer : (C) Azeotropes obey Raoult's law at all temperature

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Last Answer : Answer: (c)

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Description : The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is (A) 1 (B) ∞ (C) 0.5

Last Answer : (B) ∞

Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is important in problems involving gas absorption without chemical reaction (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion (D) Total reflux in case of distillation operation requires infinite number of plates for a binary system separation

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Last Answer : (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion

The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp= M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.) (A) Kc = Kp = Km (B) Kc = Kp /RT = Km . RT/P (C) Kc = Kp . RT = Km . RT/p (D) None of these

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Last Answer : (C) Kc = Kp . RT = Km . RT/p

Explain diffusion & its law. Also explain diffusion in gases & liquids.

Description : Explain diffusion & its law. Also explain diffusion in gases & liquids.

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Which of the following vacuum pumps operates by using a very cold surface to trap the gases on the cold surface? Is it a: w) sublimation pump x) turbo pump y) cryopump z) diffusion pump.

Description : Which of the following vacuum pumps operates by using a very cold surface to trap the gases on the cold surface? Is it a: w) sublimation pump x) turbo pump y) cryopump z) diffusion pump.

Last Answer : ANSWER: Y -- CRYOPUMP

What is the air holding capacity of the lungs of a full grown person ?

Last Answer : The air capacity of the lungs of an adult is 6 liters.

what is vital capacity of our lungs

Description : what is vital capacity of our lungs

Last Answer : what is vital capacity of our lungs A. Inspiratory reserve volume plus expiratory reserve ... . total lung capacity minus expiratory reserve volume

Vital capacity of lungs is

Description : Vital capacity of lungs is

Last Answer : Vital capacity of lungs is A. TV `+` IRV`+`ERV B. TV`+` IRV `+` RV C. TV `+` ERV D. IRV `+` ERV

What is the vital capacity of our lungs ?

Description : What is the vital capacity of our lungs ?

Last Answer : What is the vital capacity of our lungs ? A. IRV + TV B. TLC - ERV C. IRV + ERV D. TLC - RV

When 1500 mL air is in the lungs, it is called (a) residual volume (b) inspiratory reserve volume (c) vital capacity (d) tidal volume.

Description : When 1500 mL air is in the lungs, it is called (a) residual volume (b) inspiratory reserve volume (c) vital capacity (d) tidal volume.

Last Answer : (a) residual volume

What is vital capacity of our lungs? (a) Inspiratory reserve volume plus expiratory reserve volume (b) Total lung capacity minus residual volume (c) Inspiratory reserve volume plus tidal volume (d) Total lung capacity minus expiratory reserve volume

Description : What is vital capacity of our lungs? (a) Inspiratory reserve volume plus expiratory reserve volume (b) Total lung capacity minus residual volume (c) Inspiratory reserve volume plus tidal volume (d) Total lung capacity minus expiratory reserve volume

Last Answer : (b) Total lung capacity minus residual volume

What is true about diffusion capacity.

Description : What is true about diffusion capacity.

Last Answer : What is true about diffusion capacity. A. Diffusion capactiy of `CO_` is much higher than `CO_(2)` B. ... `CO_(2)` is same D. None of the above

Will the lungs return to normal?

Description : When I haven't smoked in 4 years, do you think my lungs are normal as if I never smoked?

Last Answer : (dntknw) Not yet. They say they are recovering well after seven years. You are still a non-smoker. Traces of tar in the lungs below the X-ray are still visible. (yes3)

Assertion `:-` The volume of air a person can expire after normal inspiration is TV `=` ERV Reason `:-` Volume of air that will remain in the lungs af

Description : Assertion `:-` The volume of air a person can expire after normal inspiration is TV `=` ERV Reason `:-` Volume of air that will remain in the lungs af

Last Answer : Assertion `:-` The volume of air a person can expire after normal inspiration is TV `=` ERV Reason ... False. D. If both Assertion & Reason are false.

Voluem of air remains in the lungs after normal expiration is

Description : Voluem of air remains in the lungs after normal expiration is

Last Answer : Voluem of air remains in the lungs after normal expiration is A. ERV `+` RV B. IRV `+` RV C. RV`+` IRV `+` ERV D. TV

Which of the following statements about normal salt and water balance are true? A. The products of catabolism may be excreted by as little as 300 ml. of urine per day. B. The lungs represent the primary source of insensible water loss. C. The normal daily insensible water loss is 600 to 900 ml. D. Excessive cell catabolism causes significant loss of total body water. E. In normal humans, urine represents the greatest source of daily water loss.

Description : Which of the following statements about normal salt and water balance are true? A. The products of catabolism may be excreted by as little as 300 ml. of urine per day. B. The lungs represent ... of total body water. E. In normal humans, urine represents the greatest source of daily water loss.

Last Answer : Answer: CE DISCUSSION: The skin is the primary source of insensible water loss. Including losses from the lungs, this averages 600 to 900 ml. per day. Catabolism liberates water of solution. In ... still excrete a minimum of 500 to 800 ml. of urine per day to expel the products of catabolism

Which respiratory volume is the maximum volume of air that can be inhaled after maximal expiration? a) Inspiratory reserve volume Inspiratory reserve volume is normally 3000 mL. b) Tidal volume Tidal volume is the volume of air inhaled and exhaled with each breath. c) Expiratory reserve volume Expiratory reserve volume is the maximum volume of air that can be exhaled forcibly after a normal exhalation. d) Residual volume Residual volume is the volume of air remaining in the lungs after a maximum exhalation.

Description : Which respiratory volume is the maximum volume of air that can be inhaled after maximal expiration? a) Inspiratory reserve volume Inspiratory reserve volume is normally 3000 mL. b) Tidal volume Tidal ... volume Residual volume is the volume of air remaining in the lungs after a maximum exhalation.

Last Answer : a) Inspiratory reserve volume Inspiratory reserve volume is normally 3000 mL.

Which of the following statement(s) is/are true concerning the pathophysiology of gas exchange? a. Hypoventilation in relation to perfusion can result in an oxygen saturation of less than 100% b. Diffusion block and / mismatch can almost completely be overcome by breathing 100% oxygen c. Transpulmonary shunting does not occur under normal circumstances d. The normal arterial oxygen saturation should be 100%

Description : Which of the following statement(s) is/are true concerning the pathophysiology of gas exchange? a. Hypoventilation in relation to perfusion can result in an oxygen saturation of less than 100% ... does not occur under normal circumstances d. The normal arterial oxygen saturation should be 100%

Last Answer : Answer: a, b Under normal conditions, red blood cells in the pulmonary capillaries become fully saturated and oxygen dissolves in plasma resulting in blood PO2 of 100 and O2 saturation of 100%. This ... the fact that normal arterial PO2 is 90-100 mm Hg and the normal O2 saturation is 98%

Pick out the wrong statement. (A) In solvent extraction, the distribution co-efficient should be as large as possible for solvent economy (B) With increase in pressure, the solubility of gases in solvent increases at a fixed temperature (C) Decrease in Murphree plate efficiency is an indication of entrainment in distillation column (D) The capacity of a distillation column is maximum at total reflux

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Last Answer : (D) The capacity of a distillation column is maximum at total reflux

Which is not accomplished in an underfired furnace? (A) Increase in heating capacity/m2 of floor space (B) Elimination of cold spot at the bottom of the charge (C) Reduction in the temperature of furnace gases (D) Protection of the periphery of the charge from excessive radiation

Description : Which is not accomplished in an underfired furnace? (A) Increase in heating capacity/m2 of floor space (B) Elimination of cold spot at the bottom of the charge (C) Reduction in the temperature of furnace gases (D) Protection of the periphery of the charge from excessive radiation

Last Answer : (A) Increase in heating capacity/m2 of floor space

Pick out the wrong statement. (A) Cp of monatomic gases such as metallic vapor is about 5 kcal/kg.atom (B) The heat capacity of solid inorganic substance is exactly equal to the heatcapacity of the substance in the molten state(C) There is an increase in entropy, when a spontaneous change occurs in anisolated system(D) At absolute zero temperature, the heat capacity for many pure crystallinesubstances is zero

Description : Pick out the wrong statement. (A) Cp of monatomic gases such as metallic vapor is about 5 kcal/kg.atom (B) The heat capacity of solid inorganic substance is exactly equal to the ... isolated system (D) At absolute zero temperature, the heat capacity for many pure crystalline substances is zero

Last Answer : (C) There is an increase in entropy, when a spontaneous change occurs in an isolated system

The third law of thermodynamics states that the (A) Heat capacity of a crystalline solid is zero at absolute zero temperature (B) Heat transfer from low temperature to high temperature source is not possible without external work (C) Gases having same reduced properties behaves similarly (D) None of these

Description : The third law of thermodynamics states that the (A) Heat capacity of a crystalline solid is zero at absolute zero temperature (B) Heat transfer from low temperature to high temperature source is ... without external work (C) Gases having same reduced properties behaves similarly (D) None of these

Last Answer : (A) Heat capacity of a crystalline solid is zero at absolute zero temperature

Kopp's rule is used to calculate the heat capacity of (A) Solids (B) Liquids (C) Gases (D) All (A), (B) & (C)

Description : Kopp's rule is used to calculate the heat capacity of (A) Solids (B) Liquids (C) Gases (D) All (A), (B) & (C)

Last Answer : (A) Solids

Which of the following gases reduces the oxygen carrying capacity of the blood?

Description : Which of the following gases reduces the oxygen carrying capacity of the blood?

Last Answer : Carbon monoxide

Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat capacity increases from Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases

Description : Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat ... Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases 

Last Answer : ANSWER: Z -- HEAT CAPACITY IS THE SAME FOR ALL NOBLE GASES 

Listed below are four respiratory capacities (i–iv) and four jumbled respiratory volumes of a normal human adult. Respiratory Respiratory capacities volumes (i) Residual volume 2500 mL (ii) Vital capacity 3500 mL (iii)Inspiratory reserve volume 1200 mL (iv) Inspiratory capacity 4500 mL Which one of the following is the correct matching of two capacities and volumes? (a) (ii) 2500 mL, (iii) 4500 mL (b) (iii) 1200 mL, (iv) 2500 mL (c) (iv) 3500 mL, (i) 1200 mL (d) (i) 4500 mL, (ii) 3500 mL

Description : Listed below are four respiratory capacities (i-iv) and four jumbled respiratory volumes of a normal human adult. Respiratory Respiratory capacities volumes (i) Residual volume 2500 mL (ii) Vital capacity 3500 mL (iii)Inspiratory ... c) (iv) 3500 mL, (i) 1200 mL (d) (i) 4500 mL, (ii) 3500 mL

Last Answer : (c) (iv) 3500 mL, (i) 1200 mL

Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids (C) Particles movement from higher concentration to lower concentration takes place in diffusion process (D) According to Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary

Description : Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids ( ... Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary

Last Answer : (B) Molecular diffusion in solid is much faster than that in liquids

What is the Thiele modulus of the solid catalysed first order reaction as shown in the bellow figure, if the pore diffusion offers negligible resistance to reaction? (A) < 5 (B) < 0.5(C) > 1 (D) 5

Description : What is the Thiele modulus of the solid catalysed first order reaction as shown in the bellow figure, if the pore diffusion offers negligible resistance to reaction? (A) < 5 (B) < 0.5 (C) > 1 (D) 5

Last Answer : (B) < 0.5

A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by (A) Diffusion within the pellet (B) Reaction (C) External mass transfer (D) None of the above

Description : A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the ... A) Diffusion within the pellet (B) Reaction (C) External mass transfer (D) None of the above

Last Answer : (A) Diffusion within the pellet

Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of the catalyst)/(rate if not snowed by pore diffusion), Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) (A) tan hT/T (B) tan T/T(C) tan hT/tan T(D) None of these

Description : Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of the catalyst)/(rate if not snowed by pore diffusion), Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) (A) tan hT/T (B) tan T/T (C) tan hT/tan T (D) None of these

Last Answer : (A) tan hT/T

The effectiveness factor for large value of Thiele modulus [L√(K/D1 )] of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm2 /second). (A) L √(K/D1 ) (B) 1/[L√(K/D1 )] (C) 1 (D) ∞

Description : The effectiveness factor for large value of Thiele modulus [L√(K/D1 )] of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm2 /second). (A) L √(K/D1 ) (B) 1/[L√(K/D1 )] (C) 1 (D) ∞

Last Answer : (B) 1/[L√(K/D1 )]

How many lungs does a human have ?

Description : How many lungs does a human have ?

Last Answer : We have one set of lungs, which is two lungs, technically.

(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.

How many lungs are there in human body ?

Description : How many lungs are there in human body ?

Last Answer : There are 2 lungs in human body .