Description : Identify the wrong statement with reference to transport of oxygen. (a) Binding of oxygen with haemoglobin is mainly related to partial pressure of O2. (b) Partial pressure of CO2 can interfere ... the formation of oxyhaemoglobin. (d) Low pCO2 in alveoli favours the formation of oxyhaemoglobin.
Last Answer : (c) Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin.
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)
Description : In which the following factors can interfere in binding of `O_(2)` with haemoglobin. `A-P_(CO_(2))` `B-H^(+)` ion concentration C-Temperture
Last Answer : In which the following factors can interfere in binding of `O_(2)` with haemoglobin. `A-P_(CO_(2))` `B-H^(+)` ion ... A B. B,C C. A and C D. A,B,C
Description : Factors those interfere with the binding of `O_(2)` with haemoglobin are:
Last Answer : Factors those interfere with the binding of `O_(2)` with haemoglobin are:
Description : People who have migrated from the planes to an area adjoining Rohtang Pass about six months back (a) have more RBCs and their haemoglobin has a lower binding affinity to O2 (b) are not physically fit ... etc. (d) have the usual RBC count but their haemoglobin has very high binding affinity to O2
Last Answer : (a) have more RBCs and their haemoglobin has a lower binding affinity to O2
Description : Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs (a) as bicarbonate ions (b) in the form of dissolved gas molecules (c) by binding to RBC (d) as carbamino - haemoglobin.
Last Answer : (a) as bicarbonate ions
Description : 76. People who have migrated from the planes to an area adjoining Rohtang Pass about six months back (1) Have the usual RBC count but their haemoglobin has very high binding affinuty of O2 (2 ... to play games like football (4) Suffer from altitude sickness with symptoms like nausea, fatigue, etc
Last Answer : Have more RBCs and their haemoglobin has a lower binding affinity of O2
Description : Carbon monoxide has how much greater affinity for haemoglobin as compared to oxygen? -Do You Know?
Last Answer : answer:
Description : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more affinity with Haemoglobin as compares to oxyg
Last Answer : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more ... D. If both Assertion & Reason are false.
Description : Assertion `:-` Haemoglobin can not get saturated with oxygen more than `97%`. Reason `:-` With a rise in `PO_(2)`, the affinity between `O_(2)` & haem
Last Answer : Assertion `:-` Haemoglobin can not get saturated with oxygen more than `97%`. Reason `:-` With a ... False. D. If both Assertion & Reason are false.
Description : Given below graphs an oxygen dissociation curve `:-` Where in the body will haemoglobin be saturation at the percentage shown at points X,Y and Z.
Last Answer : Given below graphs an oxygen dissociation curve `:-` Where in the body will haemoglobin be ... ventricle , Y-Right ventricle, Z-Systemic artery
Description : The oxygen - haemoglobin dissociation curve will show a right shift in case of
Last Answer : The oxygen - haemoglobin dissociation curve will show a right shift in case of A. High `pCO_(2)` B. High ... `pCO_(2)` D. Less `H^(+)` concentration
Description : The oxygen Haemoglobin dissociation curve will show a right shift in case of `:-`
Last Answer : The oxygen Haemoglobin dissociation curve will show a right shift in case of `:-` A. Less `H^(+)` concentration B. ... `CO_(2)` D. High 2,3, D.P.G.
Description : Carbon monoxide has greater affinity for haemoglobin as compared to oxygen :
Last Answer : Carbon monoxide has greater affinity for haemoglobin as compared to oxygen : A. 1000 Times B. 200 Times C. 20Times D. 2 Times
Description : Determination of oxygen carried by haemoglobin is done by
Last Answer : Determination of oxygen carried by haemoglobin is done by A. pH B. Partial presure of oxygen C. Parital pressure of carbon D. All of above
Description : Oxygen dissociation curve of haemoglobin is
Last Answer : Oxygen dissociation curve of haemoglobin is A. Hyperbolic B. Sigmoid C. Straight D. Constant
Description : Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused by
Last Answer : Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused by A. Low ... concentration D. High `CO_(2)` concentration
Description : Oxygen haemoglobin dissociation curve will shift to right on decrease of
Last Answer : Oxygen haemoglobin dissociation curve will shift to right on decrease of A. Acidity B. Carbon dioxide concentration C. Temperature D. pH
Description : Which one of the following dissolves more rapidly in blood haemoglobin than oxygen ?
Last Answer : Which one of the following dissolves more rapidly in blood haemoglobin than oxygen ? A. Ozone B. Nitrous oxide C. Sulphur dioxide D. Carbon monoxide
Description : $ The tissue which connects a bone to the muscles is called cartilage. ! Haemoglobin of blood combines permanently with oxygen
Last Answer : $ The tissue which connects a bone to the muscles is called cartilage. ! Haemoglobin of blood combines ... wrong D. If both As and R are wrong.
Description : Sigmoidal oxygen dissociation curve is a property of (A) Haemoglobin (B) Carboxyhaemoglobin (C) Myoglobin (D) Methaemoglobin
Last Answer : Answer : A
Description : Methemoglobin is formed as a result of the oxidation of haemoglobin by oxidation agent: (A) Oxygen of Air (B) H2O2 (C) K4Fe(CN)6 (D) KMnO4
Last Answer : Answer : C
Description : When haemoglobin takes up oxygen there is a change in the structure due to the moving closer together of (A) β-chains (B) β-chains (C) γ-chains (D) α and γ chains
Description : Biological Oxygen Demand (BOD) is a measure of: a. Industrial wastes poured into water bodies b. Extent to which water is polluted with organic compounds c. Amount of carbon monoxide inseparably combined with haemoglobin d. Amount of oxygen needed by green plants during night
Last Answer : Ans: A
Description : Why is Carbon Monoxide a pollutant? (1) Reacts with haemoglobin (2) Makes nervous system inactive (3) It reacts with Oxygen (4) It inhibits glycolysis
Last Answer : (1) Reacts with haemoglobin Explanation: Carbon monoxide (CO) is considered a pollutant since it is toxic to hemoglobic animals (including humans) when encountered in concentrations above about 35 ppm ... to bodily tissues. A level of 50% carboxyhemoglobin may result in seizure, coma, and fatality.
Description : The function of Haemoglobin is to : (1) provide amino acids (2) carry oxygen (3) provide enzymes (4) help in excretion
Last Answer : (2) carry oxygen Explanation: Haemoglobin is an ironcontaining protein in red blood cells. Hemoglobin in the blood carries oxygen from the respiratory organs (lungs or gills) to the rest of ... resultant carbon dioxide to bring it back to the respiratory organs to be dispensed from the organism.
Description : Haemoglobin has highest affinity for – (1) Oxygen (2) Carbon dioxide (3) Carbon monoxide (4) Nitrogen
Last Answer : (1) Oxygen Explanation: Haemoglobin has greatest affinity for oxygen with which it binds readily. The oxygen binding properties of hemoglobin exist because of the interaction between oxygen and the iron atom of the heme groups and hemoglobin's quaternary structure.
Description : Haemoglobin is used to transport _______ in humans. (1) Oxygen (2) Carbon Dioxide (3) Both are correct (4) Both are incorrect
Last Answer : (1) Oxygen Explanation: In human beings, the respiratory pigment is hemoglobin which has a very high affinity for oxygen. This pigment is present in the red blood corpuscles.
Description : Carbon monoxide has how much greater affinity for haemoglobin as compared to oxygen?
Last Answer : 200 times
Description : The toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared to oxygen approximately by (a) 200 times (b) 1000 times (c) 2 times (d) 20 times.
Last Answer : (a) 200 times
Description : How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues? (a) By forming a stable compound with haemoglobin (b) By obstructing the reaction of oxygen with haemoglobin (c) By changing oxygen into carbon dioxide (d) By destroying the haemoglobin
Last Answer : (a) By forming a stable compound with haemoglobin
Description : A shift in the oxygen-haemoglobin dissociation curve to the right occurs in : a. hypothermia b. carboxyhaemoglobin c. acidosis d. fetal haemoglobin
Last Answer : acidosis
Description : The haemoglobin of a human fetus (a) has only 2 protein subunits instead of 4 (b) has a higher affinity for oxygen than that of an adult (c) has a lower affinity for oxygen than that of the adult (d) its affinity for oxygen is the same as that of an adult.
Last Answer : (b) has a higher affinity for oxygen than that of an adult
Description : Reduction in pH of blood will (a) decrease the affinity of haemoglobin with oxygen (b) release bicarbonate ions by the liver (c) reduce the rate of heartbeat (d) reduce the blood supply to the brain.
Last Answer : (a) decrease the affinity of haemoglobin with oxygen
Description : Which of the following happens in the common cockroach? (a) Malpighian tubules are excretory organs projecting out from the colon. (b) Oxygen is transported by haemoglobin in blood. (c) Nitrogenous excretory product is urea. (d) The food is ground by mandibles and gizzard.
Last Answer : (d) The food is ground by mandibles and gizzard.
Description : On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because (A) Of clotting of blood (B) Of jamming of respiratory tract (C) It forms carboxyhemoglobin by combining ... it incapable of absorbing oxygen (D) It forms CO2 by combining with oxygen present in the blood
Last Answer : (C) It forms carboxyhemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen
Description : Carbon monoxide is pollutant as it a) Inactivates nerves b) Inhibits glycolysis c) Combines with oxygen d) Combines with haemoglobin.
Last Answer : d) Combines with haemoglobin.
Description : Why is Carbon Monoxide a pollutant ? (1) Reacts with haemoglobin (2) Makes nervous system inactive (3) It reacts with Oxygen (4) It inhibits glycolysis
Last Answer : Reacts with haemoglobin
Description : Haemoglobin has highest affinity for (1) Oxygen (2) Carbon dioxide (3) Carbon monoxide (4) Nitrogen
Last Answer : Oxygen
Last Answer : carry oxygen
Description : In biological studies which of the following is used to refer to the oxygen-binding, iron-containing, conjugated protein complex present in the sarcoplasm of muscle cells? a) myelin b) myosin c) myoglobin d) none of these
Last Answer : ANSWER: C -- MYOGLOBIN
Description : Methicillin resistant staphylococci do not respond to ß-lactam antibiotics because (a) They produce a ß-lactamase which destroys methicillin and related drugs (b) They elaborate an amidase which destroys ... low affinity for ß-lactam antibiotics (d) They are less permeable to ß-lactam antibiotics
Last Answer : Ans: C
Description : Methicillin resistant staphylococci do not respond to β-lactam antibiotics because: A. They produce a β-lactamase which destroys methicillin and related drugs B. They elaborate an amidase which destroys ... low affinity for β-lactam antibiotics D. They are less permeable to β-lactam antibiotics
Last Answer : C. They have acquired penicillin binding protein which has low affinity for β-lactam antibioti
Description : How do plants and animals primarily use the oxygen to convert their food?
Last Answer : energy
Description : Globulins contained in human blood plasma are primarily involved in (a) osmotic balance of body fluids (b) oxygen transport in the blood (c) clotting of blood (d) defence mechanisms of body.
Last Answer : (d) defence mechanisms of body.
Description : The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl ... of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion
Last Answer : the resonance stability associated with the carboxylate ion
Description : Most skin conditions related to HIV disease may be helped primarily by a) highly active antiretroviral therapy (HAART). The goals of all HIV-related conditions include improvement of CD4 count and ... for the overall treatment of HIV disease; it is not specific for treatment of skin conditions.
Last Answer : a) highly active antiretroviral therapy (HAART). The goals of all HIV-related conditions include improvement of CD4 count and lowering of viral load. Initiation of HAART (highly active ... conditions related to HIV disease. Symptomatic relief will be required until the skin condition improves.
Description : The following is true of vancomycin except: A. It is a bactericidal antibiotic active primarily against gram positive bacteria B. It acts by inhibiting bacterial protein synthesis C. It is an alternative to penicillin for enterococcal endocarditis D. It can cause deafness as a dose related toxicity
Last Answer : B. It acts by inhibiting bacterial protein synthesis
Description : "Hard" water is related to the presence of high concentrations of primarily four metal ions in water supplies. Calcium and magnesium ions are the most common of the four. Name one of the other two ions.
Last Answer : ANSWER: IRON AND MANGANESE