What structure in the lungs help to increase the absorption of oxygen?

What structure in the lungs help to increase the absorption of oxygen?
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What structure in the lungs helps to increase the absorption of oxygen?

Description : What structure in the lungs helps to increase the absorption of oxygen?

Last Answer : hhhj

The diagram represents a section through the small intestine.What is the role of the structure labelled X ? (a) They secrete enzymes for digestion (b) They secrete hormones (c) They decrease the surface area of absorption (d) They increase the surface area of absorption

Description : The diagram represents a section through the small intestine.What is the role of the structure labelled X ? (a) They secrete enzymes for digestion (b) They secrete hormones (c) They decrease the surface area of absorption (d) They increase the surface area of absorption

Last Answer : (d) They increase the surface area of absorption

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.

(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.

In what process does oxygen enter the blood from the lungs during respiration ?

Description : In what process does oxygen enter the blood from the lungs during respiration ?

Last Answer : During respiration, oxygen enters the blood from the lungs in the process of diffusion.

The ability of the heart, lungs, and blood vessels to transport oxygen to muscle cells.?

Description : The ability of the heart, lungs, and blood vessels to transport oxygen to muscle cells.?

Last Answer : cardiorespiresatory endurance

In children the lungs are pale pink due to (a) Rich blood supply (b) Greater binding affinity of haemoglobin for oxygen (c) Formation of a higher percentage of oxyhaemoglobin as per higher metabolic rate (d) All of them

Description : In children the lungs are pale pink due to (a) Rich blood supply (b) Greater binding affinity of haemoglobin for oxygen (c) Formation of a higher percentage of oxyhaemoglobin as per higher metabolic rate (d) All of them

Last Answer : Ans:(a)

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

Which one of the following statements is incorrect? (a) The principle of countercurrent flow facilitates efficient respiration in gills of fishes. (b) The residual air in lungs slightly decreases the efficiency of respiration in mammals. (c) The presence of non-respiratory air sacs, increases the efficiency of respiration in birds. (d) In insects, circulating body fluids serve to distribute oxygen to tissues.

Description : Which one of the following statements is incorrect? (a) The principle of countercurrent flow facilitates efficient respiration in gills of fishes. (b) The residual air in lungs slightly decreases the ... in birds. (d) In insects, circulating body fluids serve to distribute oxygen to tissues.

Last Answer : (b) The residual air in lungs slightly decreases the efficiency of respiration in mammals.

Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort? (a) One can breathe out air totally without oxygen. (b) One can breathe out air through Eustachian tube by closing both nose and mouth. (c) One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all. (d) The lungs can be made fully empty by forcefully breathing out all air from them

Description : Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort? (a) One can breathe out air totally without oxygen. (b) One can breathe out air ... ribs at all. (d) The lungs can be made fully empty by forcefully breathing out all air from them

Last Answer : (b) One can breathe out air through Eustachian tube by closing both nose and mouth

Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N2 in contaminated air at which it acts as a natural asphyxiate is ≥ __________ percent. (A) 84 (B) 88 (C) 80 (D) 92

Description : Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N2 in contaminated air at ... asphyxiate is ≥ __________ percent. (A) 84 (B) 88 (C) 80 (D) 92

Last Answer : (A) 84

Oxygen enters the body of a grasshopper through: a) gills b) spinnerets c) spiracles d) book lungs

Description : Oxygen enters the body of a grasshopper through: a) gills b) spinnerets c) spiracles d) book lungs

Last Answer : ANSWER: C -- SPIRACLES 

Why do brids not have respiratory trouble at the time of flying at high altitude ? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less oxygen

Description : Why do brids not have respiratory trouble at the time of flying at high altitude ? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less oxygen

Last Answer : They have extra air sacs

How does the structure of the smail intestine help absorption?

Description : How does the structure of the smail intestine help absorption?

Last Answer : They all

In the event of cabin depressurization, the actions of the pilot will be to: a. Immediately commence a diversion to a suitable alternate b. Increase engine power to provide additional airflow to the pressurization systems c. Maintain the aeroplane altitude to prevent further damage to the airframe by over loading of the structure d. Commence a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Description : In the event of cabin depressurization, the actions of the pilot will be to: a. Immediately commence a diversion to a suitable alternate b. Increase engine power to provide additional ... a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Last Answer : d. Commence a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Calculate the reverberation time of a living room 8 ft high, 13 ft wide and 20 ft long. The total absorption of the building structure inside the room is 180.7 sabines with four persons present in the room. A. 0.5 ms B. 0.05 s C. 0.5 s D. 5 ms

Description : Calculate the reverberation time of a living room 8 ft high, 13 ft wide and 20 ft long. The total absorption of the building structure inside the room is 180.7 sabines with four persons present in the room. A. 0.5 ms B. 0.05 s C. 0.5 s D. 5 ms

Last Answer : C. 0.5 s

Glaucoma is caused by increase in pressure within: A. Eyeball B. Heart C. Lungs D. Kidneys

Description : Glaucoma is caused by increase in pressure within: A. Eyeball B. Heart C. Lungs D. Kidneys

Last Answer : ANSWER: A

Glaucoma is caused by increase in pressure within: A. Eyeball B. Heart C. Lungs D. Kidneys

Description : Glaucoma is caused by increase in pressure within: A. Eyeball B. Heart C. Lungs D. Kidneys

Last Answer : ANSWER: A

Glaucoma is caused by increase in pressure within: A. Eyeball B. Heart C. Lungs D. Kidneys

Description : Glaucoma is caused by increase in pressure within: A. Eyeball B. Heart C. Lungs D. Kidneys

Last Answer : ANSWER: A

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

Which of the following is most important for absorption of heat radiated from the Sun as well as from the Earth? (1) Carbon dioxide (2) Oxygen (3) Carbon monoxide (4) Nitrogen

Description : Which of the following is most important for absorption of heat radiated from the Sun as well as from the Earth? (1) Carbon dioxide (2) Oxygen (3) Carbon monoxide (4) Nitrogen

Last Answer : (1) Carbon dioxide Explanation: Carbon dioxide is a green house gas that absorbs heat radiated from the Sun as well as re-radiated heat from the Earth's surface.

Oxygen molecule absorption peaks to electromagnetic wave are at what wavelengths? A. 1.35 cm and 1.7 mm B. 5 mm and 2.5 mm C. 5 cm and 2.5 cm D. 1.35 mm and 1.7 μm

Description : Oxygen molecule absorption peaks to electromagnetic wave are at what wavelengths? A. 1.35 cm and 1.7 mm B. 5 mm and 2.5 mm C. 5 cm and 2.5 cm D. 1.35 mm and 1.7 μm

Last Answer : B. 5 mm and 2.5 mm

Oxygen molecule absorption peaks to electromagnetic wave are at what wavelengths? A. 1.35 mm and 1.7 μm B. 1.35 cm and 1.7 mm C. 5 cm and 2.5 cm D. 5 mm and 2.5 mm

Description : Oxygen molecule absorption peaks to electromagnetic wave are at what wavelengths? A. 1.35 mm and 1.7 μm B. 1.35 cm and 1.7 mm C. 5 cm and 2.5 cm D. 5 mm and 2.5 mm

Last Answer : D. 5 mm and 2.5 mm

There exists a close association between the alga and the fungus within a lichen. The fungus (a) provides protection, anchorage and absorption for the algae (b) provides food for the alga (c) fixes the atmospheric nitrogen for the alga (d) releases oxygen for the alga.

Description : There exists a close association between the alga and the fungus within a lichen. The fungus (a) provides protection, anchorage and absorption for the algae (b) provides food for the alga (c) fixes the atmospheric nitrogen for the alga (d) releases oxygen for the alga.

Last Answer : (a) provides protection, anchorage and absorption for the algae

What structures help increase the absorption of food in the small intestine How do they do this?

Description : What structures help increase the absorption of food in the small intestine How do they do this?

Last Answer : Villi: The folds form numerous tiny projections which stick out into the open space inside your small intestine (or lumen), and are covered with cells that help absorb nutrients from the food that ... The cells on the villi are packed full of tiny hairlike structures called microvilli.(I think )

What structures help increase the absorption of food in the small intestine How do they do this?

Description : What structures help increase the absorption of food in the small intestine How do they do this?

Last Answer : Villi: The folds form numerous tiny projections which stick out into the open space inside your small intestine (or lumen), and are covered with cells that help absorb nutrients from the food that ... The cells on the villi are packed full of tiny hairlike structures called microvilli.(I think )

Characteristics of Vitamin D and its metabolites include which one of the following? (a) Act to decrease serum levels of calcium (b) Activation of their Vitamin D receptors increases cellular CAMP (c) Calcitriol is the major derivative responsible for increasing intestinal absorption of phosphate (d) Metabolites of Vitamin D increase renal excretion of calcium (e) Vitamin D deficiency results in Pager’s disease

Description : Characteristics of Vitamin D and its metabolites include which one of the following? (a) Act to decrease serum levels of calcium (b) Activation of their Vitamin D receptors increases cellular CAMP ... Vitamin D increase renal excretion of calcium (e) Vitamin D deficiency results in Pager's disease

Last Answer : Ans: C

A porous material is far more efficient at high than low frequency absorption. How to improve sound absorption at lower frequencies using this absorber? A. Increase the thickness B. Decrease the thickness C. Mount with and airspace behind D. Both A and C above

Description : A porous material is far more efficient at high than low frequency absorption. How to improve sound absorption at lower frequencies using this absorber? A. Increase the thickness B. Decrease the thickness C. Mount with and airspace behind D. Both A and C above

Last Answer : D. Both A and C above

In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor. (A) Increases with increase in (B) Is one at unity value of (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor. (A) Increases with increase in (B) Is one at unity value of (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent (A) Increases (B) Decreases (C) Decreases linearly (D) Remains unaffected

Description : With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent (A) Increases (B) Decreases (C) Decreases linearly (D) Remains unaffected

Last Answer : (A) Increases

With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas (A) Increases (B) Decreases (C) Decreases linearly (D) Remain unaffected

Description : With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas (A) Increases (B) Decreases (C) Decreases linearly (D) Remain unaffected

Last Answer : (B) Decreases

To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate) (A) Increase both 'G' and 'S' (B) Decrease both 'G' and 'S' (C) Increase 'S' and decrease 'G' (D) Increase 'G' and decrease 'S'

Description : To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate) (A) Increase both 'G' and 'S' (B) Decrease both 'G' and 'S' (C) Increase 'S' and decrease 'G' (D) Increase 'G' and decrease 'S'

Last Answer : (C) Increase 'S' and decrease 'G

Absorption accompanied by heat evolution results in (A) Increased capacity of the absorber (B) Increase in equilibrium solubility (C) Decrease in equilibrium solubility (D) None of these

Description : Absorption accompanied by heat evolution results in (A) Increased capacity of the absorber (B) Increase in equilibrium solubility (C) Decrease in equilibrium solubility (D) None of these

Last Answer : (C) Decrease in equilibrium solubility

In a packed bed absorption column, the channelling will be noted by the (A) Increase in flow rate (B) Sharp drop in pressure drop (C) Sharp rise in pressure drop (D) None of these

Description : In a packed bed absorption column, the channelling will be noted by the (A) Increase in flow rate (B) Sharp drop in pressure drop (C) Sharp rise in pressure drop (D) None of these

Last Answer : (B) Sharp drop in pressure drop

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop (A) Decreases (B) Remains unchanged (C) Increases (D) Decreases exponentially

Description : With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop (A) Decreases (B) Remains unchanged (C) Increases (D) Decreases exponentially

Last Answer : (C) Increases

Root pressure develops due to (a) passive absorption (b) active absorption (c) increase in transpiration (d) low osmotic potential in soil.

Description : Root pressure develops due to (a) passive absorption (b) active absorption (c) increase in transpiration (d) low osmotic potential in soil.

Last Answer : (b) active absorption

Production cost which increase with the quantity of product made is called ? 1. Absorption Cost 2. High Production Cost 3. Non-fixed 4. Variable cost 5. None of these

Description : Production cost which increase with the quantity of product made is called ? 1. Absorption Cost 2. High Production Cost 3. Non-fixed cost 4. Variable cost 5. None of these

Last Answer : Variable cost

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to (A) Increase the rate of absorption (B) Avoid corrosion (C) Reduce the cooling water circulation rate (D) None of these

Description : During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to (A) Increase the rate of absorption (B) Avoid corrosion (C) Reduce the cooling water circulation rate (D) None of these

Last Answer : (B) Avoid corrosion

to increase absorption of oral iron , give with: - Vit C - Vit E - Zinc - Ca - Antacid

Description : to increase absorption of oral iron , give with: - Vit C - Vit E - Zinc - Ca - Antacid

Last Answer : Vit C

In the stratosphere, why does temperature increase with increasing height? (a) Conduction. (b) Convection. (c) Greater absorption of ultraviolet radiation at the top of the strato- sphere. (d) The pressure and density rapidly decrease as you go up through the strato- sphere, thus the ideal gas law requires temperature to increase too.

Description : In the stratosphere, why does temperature increase with increasing height? (a) Conduction. (b) Convection. (c) Greater absorption of ultraviolet radiation at the top of the strato- sphere. (d ... you go up through the strato- sphere, thus the ideal gas law requires temperature to increase too.

Last Answer : Greater absorption of ultraviolet radiation at the top of the strato- sphere.

A patient who has been taking quantities of aspirin might show increased post operative bleeding because aspirin inhibits:** A. Synthesis of thromboxane A2 and prevents platelet aggregation B. Synthesis of prostacyclin and prevents platelet aggregation C. Synthesis of prostaglandin and prevents production of blood platelets D. Thrombin and prevents formation of the fibrin network E. Increase the absorption of vitamin K and prevents synthesis of blood clotting factors

Description : A patient who has been taking quantities of aspirin might show increased post operative bleeding because aspirin inhibits:** A. Synthesis of thromboxane A2 and prevents platelet aggregation B. ... network E. Increase the absorption of vitamin K and prevents synthesis of blood clotting factors

Last Answer : A. Synthesis of thromboxane A2 and prevents platelet aggregation

Irrespective of the type, all laxatives exert the following action: A. Increase the content of solids in the faeces B. Increase the water content of faeces C. Reduce absorption of nutrients D. Increase intestinal motility

Description : Irrespective of the type, all laxatives exert the following action: A. Increase the content of solids in the faeces B. Increase the water content of faeces C. Reduce absorption of nutrients D. Increase intestinal motility

Last Answer : B. Increase the water content of faeces

With absorption and decomposition of CO2 in ocean water beyond desired level, there will be : (A) decrease in temperature (B) increase in salinity (C) growth of phytoplankton (D) rise in sea level

Description : With absorption and decomposition of CO2 in ocean water beyond desired level, there will be : (A) decrease in temperature (B) increase in salinity (C) growth of phytoplankton (D) rise in sea level

Last Answer : Answer: C  Phytoplankton are photosynthesizing microscopic organisms that inhabit the upper sunlit layer of almost all oceans and bodies of fresh water. They are agents for "primary production," ... powerful biotoxins. These toxic blooms can kill marine life and people who eat contaminated seafood.