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.
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 : 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 : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason `:-` In the alveoli `P_(CO_(2))` is low and `P_(
Last Answer : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason ` ... . D. If both Assertion & Reason are false.
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 : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` concentration conditions are favourable for dissociation of oxygen fr
Last Answer : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` ... Reason is False. D. If both Assertion & Reason are false.
Description : 2, 3-Biphosphoglycerate in high concentrations, combines with hemoglobin, causes (A) Displacement of the oxyhemoglobin dissociation curve to the left (B) Displacement of the oxyhemoglobin dissociation curve ... (C) No change in oxy hemoglobin dissociation curve (D) Increased affinity for oxygen
Last Answer : Answer : B
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 : 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 : Sigmoidal oxygen dissociation curve is a property of (A) Haemoglobin (B) Carboxyhaemoglobin (C) Myoglobin (D) Methaemoglobin
Last Answer : Answer : A
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 : Affinity of CO for haemoglobin as compared to `O_(2)` is
Last Answer : Affinity of CO for haemoglobin as compared to `O_(2)` is A. Two times B. Twenty times C. 100 times D. 200 times
Description : Blood haemoglobin has high affinity for (a) CO2 (b) CO (c) O2 (d) H
Last Answer : Ans:(b)
Description : Haemoglobin has the highest affinity with which of the following? (1) SO (2) CO₂ (3) CO (4) NO₂
Last Answer : (3) CO
Description : Assertion : Smoking makes oxgyen less available to the body Reason : In presence `CO,O_2` binds less with haemoglobin.
Last Answer : Assertion : Smoking makes oxgyen less available to the body Reason : In presence `CO,O_2` binds less ... . D. If both Assertion & Reason are false.
Description : Carbon monoxide has how much greater affinity for haemoglobin as compared to oxygen? -Do You Know?
Last Answer : answer:
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 : 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 : 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 : 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 : Haemoglobin has highest affinity for (1) Oxygen (2) Carbon dioxide (3) Carbon monoxide (4) Nitrogen
Last Answer : Oxygen
Description : Assertion :- Bond Dissociation energy is `F_(2) gt Cl_(2)` Reason:- `Cl_(2)` have more electronic repulsion than `F_(2)`.
Last Answer : Assertion :- Bond Dissociation energy is `F_(2) gt Cl_(2)` Reason:- `Cl_(2)` have more ... is False. D. If both Assertion & Reason are false
Description : Assertion :- First electrons affinity fo all element is positive. Reason :- Successive electron affinity of all elements is negative
Last Answer : Assertion :- First electrons affinity fo all element is positive. Reason :- Successive electron affinity ... D. If both Assertion & Reason are false
Description : A large proportion of oxygen remains unused in the human blood even after its uptake by the body tissues. This O2 (a) acts as a reserve during muscular exercise (b) raises the pCO2 of ... enough to keep oxyhaemoglobin saturation at 96% (d) helps in releasing more O2 to the epithelial tissues.
Last Answer : (a) acts as a reserve during muscular exercise
Description : Decrease in pH causes `O_(2)` dissociation curve of haemoglobin to shift to
Last Answer : Decrease in pH causes `O_(2)` dissociation curve of haemoglobin to shift to A. shift of ... right C. remain unchanged D. will oscillate erratically
Description : Dissociation of `CO_(2)` from carbamino-haemoglobin takes place when:
Last Answer : Dissociation of `CO_(2)` from carbamino-haemoglobin takes place when:
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 : 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 : Haemoglobin is having maximum affinity with
Last Answer : Haemoglobin is having maximum affinity with A. Carbon monoxide B. Carbon dioxide C. Oxygen D. Ammonia
Description : Haemoglobin has highest affinity for
Last Answer : Carbon monoxid
Description : Assertion `:` Most of the human haemoglobin in our body has `2 alph` and `2 beta` polypeptide chains. Reason `:` Haemoglobin is a conjugate protein an
Last Answer : Assertion `:` Most of the human haemoglobin in our body has `2 alph` and `2 beta` polypeptide ... False. D. If both Assertion & Reason are false.
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 : Beryllium chloride, BeCl2, melts at 405°C and boils at 520°C. That compares with 714°C and 1412°C for magnesium chloride.Give reason ?
Last Answer : Ans Be forms covalent compounds
Description : If a metal has low oxygen affinity then the purification of metal may be carried out by :
Last Answer : If a metal has low oxygen affinity then the purification of metal may be carried out by : A. liquation B. distillation C. zone refining D. cupellation
Description : How is the stability of a co-ordination compound in solution decided ? How is the dissociation constant of a complex defined? -Chemistry
Last Answer : Stability of a complex in solution means the measure of resistance to the replacement of a ligand by some other ligand. This stablility can be expressed in terms of equilibrium constant. Let the ... is its tendency to donate electron pair and therefore, more is the stability of the complex.
Description : Which of the following is an endothermic reaction? (A) Absorption of SO3 in 98% H2SO4 (B) C + H2O = CO + H2 (C) Thermal dissociation of iron pyrites (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason (R): Wetlands and rice fields are t
Last Answer : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 ... true but reason is wrong D. Both are wrong
Description : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration `(CMC)` . Reason(R): The conductivity of a s
Last Answer : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration ` ... If both Assertion & Reason are False.
Description : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High concentration of progesterone is present in proliferati
Last Answer : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High ... . If both Assertion & Reason are False.
Description : Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either hypotonic or hypertonic urine according to the
Last Answer : Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either ... D. If both Assertion and Reason are false
Description : The conditions which are favourable for the formation of oxyhaemoglobin `:`
Last Answer : The conditions which are favourable for the formation of oxyhaemoglobin `:` A. `PO_(2)uarr,PCO_(2)uarr, H ... , H^(+)`conc. `darr, `Temperature `uarr`
Description : Oxyhaemoglobin acts as
Last Answer : Oxyhaemoglobin acts as A. Alkali B. Acid C. Neutral D. Buffer
Description : Oxyhaemoglobin work as a :-
Last Answer : Oxyhaemoglobin work as a :- A. Basis B. Acidic C. Neutral D. None of these