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

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The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the ... it 40mm Hg and 46 mm Hg respectively

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Description : With regard to the transport of carbon dioxide in blood: a. 25% of carbon dioxide is dissolved in blood b. carbonic anhydrase is found in plasma c. 50% of carbon dioxide is carried as bicarbonate d. deoxygenated haemoglobin facilitates the transport of carbon dioxide

Last Answer : deoxygenated haemoglobin facilitates the transport of carbon dioxide

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

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Description : The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. ... Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

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Description : Assertion : - Blood in cockroach is colourless with no respiratory pigment. Reason : - Gasesous exchange occurs through diffusion in haemolymph.

Last Answer : Assertion : - Blood in cockroach is colourless with no respiratory pigment. Reason : - Gasesous exchange occurs through ... A. A B. B C. C D. D

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.

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Description : 'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues

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Description : What is the difference between arteries and veins? a) Arteries carry blood away from the heart, while veins carry blood back to the heart. b) Arteries carry oxygenated blood, while veins carry deoxygenated ... same thing. d) Arteries carry food to our cells, while veins carry oxygen to our cells.

Last Answer : a) Arteries carry blood away from the heart, while veins carry blood back to the heart.

Description : Exchange of oxygen, carbon dioxide, nutrients and waste products from mother to fetus occurs through diffusion across the: a) chorionic villi (pron: core-e-on-ick villi) b) endometrium c) corpus luteum d) colostrum

Last Answer : ANSWER: A -- CHORIONIC VILLI

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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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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Description : The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized ... b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Last Answer : Answer: (c)

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.

Description : (a) Draw a diagram of human respiratory system and label the following: (i) part where air is filtered by fine hair and mucus (ii) part which terminates in balloon - like structures (iii) ... (b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms? -Biology

Last Answer : (a) (b) Quantity of dissolved oxygen is fairly low in water as compared to the amount of oxygen in air. Aquatic organisms therefore have to breath faster than terrestrial organisms to absorb the required amount of oxygen from the water.

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.

Description : 05. What kind of substances can’t permeate membranes by passive diffusion? a) Lipid-soluble b) Non-ionized substances c) Hydrophobic substances d) Hydrophilic substances 06. A hydrophilic medicinal agent

Last Answer : d) Hydrophilic substances

Description : Majority of drugs cross biological membranes primarily by: A. Passive diffusion B. Facilitated diffusion C. Active transport D. Pinocytosis

Last Answer : A. Passive diffusion

Description : Majority of drugs cross biological membranes primarily by: A. Passive diffusion B. Facilitated diffusion C. Active transport D. Pinocytosis

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Description : By which of the following can movement of materials across animal cell membranes be accomplished? I Active transport, II Diffusion, III Pinocytosis (A) I only (B) II only (C) I and II only (D) All I, II, and III

Last Answer : Will be only two.

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%

Description : Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates (A) Use of only one graph for all gases (B) Covering of wide range (C) Easier plotting (D) More accurate plotting

Last Answer : A) Use of only one graph for all gases

Description : The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in making rails or railroads bec

Last Answer : The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in ... ,iii C. ii,iv D. I,iii,iv

Description : The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in making rails or railroads bec

Last Answer : The addition of high proportions of maganese makes steel useful in making rails or railroads because ... . can show highest oxidation state of +7

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Description : When water enters in roots due to diffusion, is termed as (a) osmosis (b) passive absorption (c) endocytosis (d) active absorption.

Last Answer : (b) passive absorption

Description : 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 ... (C) Kc = Kp . RT = Km . RT/p (D) None of these

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

Description : Which one of the following is not the function of placenta? (a) Facilitates removal of carbon dioxide and waste material from embryo (b) Secretes oxytocin during parturition (c) Facilitates supply of oxygen and nutrients to embryo (d) Secretes estrogen

Last Answer : (b) Secretes oxytocin during parturition

Description : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.

Last Answer : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.

Description : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.

Last Answer : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.

Description : Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds ? -Biology

Last Answer : Separation of oxygenated and deoxygenated blood allows good supply of oxygen to the body. This system is useful in animals that have high energy requirement. Mammals and birds constantly need oxygen to get energy to maintain their body temperature constant.

Description : Assertion `:` In amphibians incomplete double circulation presents. Reason `:` In amphibians oxygenated and deoxygenated blood get mixed up in the sin

Last Answer : Assertion `:` In amphibians incomplete double circulation presents. Reason `:` In amphibians oxygenated ... . If both Assertion & Reason are false.

Description : Which of the following blood vessel in the circulatory system of frog has more deoxygenated blood `:-`

Last Answer : Which of the following blood vessel in the circulatory system of frog has more deoxygenated ... veins C. Pulmocutaneous artery D. Pulmocutaneous vein

Description : Which of the following carries deoxygenated blood only `:-`

Last Answer : Which of the following carries deoxygenated blood only `:-` A. Carotide artery B. Pulmonary artery C. Pulmonary vein D. Aorta

Description : Mixing of oxygenated and deoxygenated blood occurs in the ventricle of

Last Answer : Mixing of oxygenated and deoxygenated blood occurs in the ventricle of A. Scoliodon B. Rabbit C. Frog D. None of these

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

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

Description : Every 100 mL of deoxygenated blood transport how much amount of `CO_(2)`?

Last Answer : Every 100 mL of deoxygenated blood transport how much amount of `CO_(2)`?

Description : Every 100 mL of deoxygenated blood transport how much amount of `CO_(2)`?

Last Answer : Every 100 mL of deoxygenated blood transport how much amount of `CO_(2)`?

Description : What vessel receives deoxygenated blood in the right atrium via the heart?

Last Answer : Need answer

Description : Which of the following brings back deoxygenated blood from different parts of human body to heart?

Last Answer : Veins

Description : The chamber of the mammalian heart from which deoxygenated blood is sent for oxygenation is (a) right auricle (b) right ventricle (c) left auricle (d) left ventricle

Last Answer : Ans:(d)

Description : The chamber of the heart that receives deoxygenated blood from the various parts of the body is (a) Sinus venous (b) Left auricle (c) Right auricle (d) Right venous

Last Answer : Ans:(d)

Description : Prawn heart carries - (1) no blood (2) deoxygenated blood (3) oxygenated blood (4) mixed blood

Last Answer : (3) oxygenated blood

Description : In which vertebrate oxygenated and deoxygenated blood gets mixed (1) Fish (2) Amphibian (3) Bird (4) Mammal

Last Answer : (2) Amphibian Explanation: If the oxygenated blood and deoxygenated blood mixed, then blood would circulate through the body without being fully oxygenated. Also the deoxygenated blood is supposed to take that trip through the lungs to give up the carbon dioxide.

Description : Which of the following brings back deoxygenated blood from different parts of human body to heart? (1) Veins (2) Arteries (3) Nerves (4) Lungs

Last Answer : (1) Veins

Description : Blood which heart pumps to lungs is-----? A. deoxygenated blood (Answer) B. lymph fluid C. atria blood

Last Answer : A. deoxygenated blood (Answer)

Description : In which living oxygenated and deoxygenated blood combined

Last Answer : Amphibian

Description : Prawn heart carries (1) no blood (2) deoxygenated blood (3) oxygenated blood (4) mixed blood

Last Answer : oxygenated blood

Description : In which vertebrate oxygenated and deoxygenated blood gets mixed ? (1) Fish (2) Amphibian (3) Bird (4) Mammal

Last Answer : Amphibian

Description : A young child presents with respiratory distress, worsening over 2 days. Blood gases show a pH of 7.25, a PCO2 of 7.5kPa, a PO2 of 8.5kPa, and a base excess of -4. Which of the ... required. 4) Results are consistent with late severe asthma. 5) Bicarbonate may be necessary to correct the acidosis.

Last Answer : Answers-4 In interpreting blood gas results, the following sequence may be useful: Inspect the pH: Is it low, normal or high? Inspect the CO2: Is it low, normal or high? Inspect the PO2: Is ... excess and normal pH. Bicarbonate is usually only considered if the base deficit exceeds about -8 or 00.

Description : In arthropods why isn't gas exchange done through cutaneous diffusion?

Last Answer : In arthropods the impermeability of the exoskeleton makes the passage of gases difficult. In addition the new methods of respiration present in arthropods were preserved by evolution because they were more efficient for those animals.