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 : 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 : Carbon monoxide is a pollutant because (a) reacts with haemoglobin (b) makes nervous system inactive (c) it reacts with O2 (d) it inhibits glycolysis.
Last Answer : (a) reacts with haemoglobin
Description : Chief air pollutant which is likely to deplete ozone layer is a) Sulphur dioxide b) Carbon dioxide c) Carbon monoxide d) Nitrogen oxides and Fluorocarbons.
Last Answer : d) Nitrogen oxides and Fluorocarbons
Description : Carbon monoxide kills because it destroys a) Haemoglobin b) Phytochrome c) Cytochrome d) Both a and b.
Last Answer : a) Haemoglobin
Description : Carboxy haemoglobin is formed when haemoglobin combines with a) carbon dioxide b)CFCs c)carbon monoxide d)none of these
Last Answer : a) carbon dioxide
Description : Carbon monoxide is a poisonous gas for one of the following reasons. w) it is a powerful acid anhydride x) it combines with the hemoglobin of the blood y) it depletes the dissolved oxygen in the blood by forming carbon dioxide z) it is a strong oxidizing agent
Last Answer : ANSWER: X -- IT COMBINES WITH THE HEMOGLOBIN OF THE BLOOD
Description : An example of major air pollutant is – (1) Oxygen (2) Carbon monoxide (3) Helium (4) Carbon dioxide
Last Answer : (2) Carbon monoxide Explanation: Carbon monoxide (CO) is a colourless, odorless, non-irritating but very poisonous gas which is a product by incomplete combustion of fuel such as natural gas, coal or wood. Vehicular exhaust is a major source of carbon monoxide.
Description : An example of major air pollutant is (1) Oxygen (2) Carbon monoxide (3) Helium (4) Carbon dioxide
Last Answer : Carbon monoxide
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 : 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 : 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 : 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 : 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 : Haemoglobin has highest affinity for (1) Oxygen (2) Carbon dioxide (3) Carbon monoxide (4) Nitrogen
Last Answer : Oxygen
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 : NADH is produced in:. (a) Photosystem-II (b) Photosystem-I (c) Glycolysis (d) Both (a) and (b)
Last Answer : Ans. ((c))
Description : In bioremediation, bio-films are usually used a. At the source of pollutant b. After collection of pollutant c. After treatment of pollutant d. Before pollutant is produced
Last Answer : a. At the source of pollutant
Description : Which Pollutant causes leaf curling a) CO b) H2S c) O3 d) SO2
Last Answer : d) SO2
Description : Minamata disease is due to pollutant a) Lead b) Mercury c) Hydrogen Sulphide d) Sulphur dioxide
Last Answer : b) Mercury
Description : Which one of the following is normally not an atmospheric pollutant ? a) CO b) CO2 c) SO2 d) Hydrocarbon.
Last Answer : b) CO2
Description : Most abundant water pollutant is a) Detergents b) Pesticides c) Industrial wastes d) Ammonia.
Last Answer : c) Industrial wastes
Description : Major aerosol pollutant in Jet Plane emission is a) SO2 b) CO c) CH4 d) CFC.
Last Answer : d) CFC.
Description : Carbon monoxide is pollutant as it:
Last Answer : Carbon monoxide is pollutant as it: A. inactivates nerves B. inhibits glycolysis C. combines with oxygen D. combines with haemoglobin.
Description : The most serious air pollutant causing health hazard is – (1) Sulphur dioxide (2) Carbon monoxide (3) Ozone (4) Nitrogen oxide
Last Answer : (1) Sulphur dioxide Explanation: Sulphur dioxide (SO2) is considered as the most serious single air pollutant causing health hazard, obstructing breathing. It always leads to airways inflammation, ... , pulmonary oedema, heart failure and circulatory collapse. It is also responsible for acid rain.
Description : Which of the following auto mobile gases is not considered to be an air pollutant? (1) Carbon dioxide (2) Carbon monoxide (3) Sulfur dioxide (4) Nitrogen dioxide
Last Answer : (1) Carbon dioxide Explanation: There are mainly six air pollutants: carbon monoxide lead, ground-level ozone, nitrogen dioxide, particulate matter, and sulfur dioxide.
Description : Major aerosol pollutant in jet plane emission is (a) sulphur dioxide (b) carbon monoxide (c) methane (d) fluorocarbon.
Last Answer : (d) fluorocarbon.
Description : Which one is not a pollutant normally? (a) Hydrocarbon (b) Carbon dioxide (c) Carbon monoxide (d) Sulphur dioxide
Last Answer : (b) Carbon dioxide
Description : Major aerosol pollutant in jet plane emission is (a) sulphur dioxide (b) carbon monoxide (c) methane (d) fluorocarbon
Description : Pick out the wrong statement. (A) Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions (B) Inhalation of pollutant carbon monoxide results ... D) Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in atmosphere
Last Answer : (C) Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles
Description : Carbon monoxide is a pollutant, which causes (A) Respiratory disease (e.g. asthma) (B) Asphyxiation (suffocation) leading to death (C) Retardation in crop growth (D) Damage to building materials like marble
Last Answer : (B) Asphyxiation (suffocation) leading to death
Description : Pick out the wrong statement (A) Low ozone layer thickness in polar regions is due to cold climatic conditions (B) Amount of unburnt hydrocarbons emitted by two stroke petrol engine is more ... can enter the blood stream & the digestive system/ lungs and is responsible for causing Minamata disease
Last Answer : (D) Mercury as a pollutant can enter the blood stream & the digestive system/ lungs and is responsible for causing Minamata disease
Description : Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel
Last Answer : (B) Automobiles exhaust
Description : Which of the following is not a major pollutant from automobiles. w) carbon monoxide x) unburned hydrocarbons y) nitrous oxide z) sulfur dioxide
Last Answer : ANSWER: Z -- SULFUR DIOXIDE
Description : Identify the air pollutant in urban areas which irritates eyes and also respiratory tract of human beings. (A) Particulate matter (B) Oxides of nitrogen (C) Surface ozone (D) Carbon monoxide
Last Answer : (C) Surface ozone
Description : The most serious air pollutant causing health hazard is (1) Sulphur dioxide (2) Carbon monoxide (3) Ozone (4) Nitrogen oxide
Last Answer : Sulphur dioxide
Description : Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.
Last Answer : a) Reduction in ozone
Description : Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) (A) Acts as a green house gas thereby raising earth's ... (B) Causes asphyxia (C) Causes increase in sea level (D) Enhances the green house effect
Last Answer : (B) Causes asphyxia
Description : Which of the following combines with haemoglobin in blood?
Last Answer : Which of the following combines with haemoglobin in blood? A. Carbon dioxide B. carbon monoxide C. oxygen D. methane
Description : Phlorizin inhibits (A) Renal tubular reabsorption of glucose (B) Glycolysis (C) Gluconeogenesis (D) Glycogenolysis
Last Answer : Answer : A
Description : Fluoride inhibits ______ and arrests glycolysis. (A) Glyceraldehyde-3-phosphate dehydrogenase (B) Aconitase (C) Enolose (D) Succinate dehydrogenase
Last Answer : C
Description : Which of the following is the best example of law of conservation of mass? [NCERT 1975] (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2. (B) When 12 g of carbon is ... mass remains unaltered. (D) The weight of a piece of platinum is the same before and after heating in air.
Last Answer : (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2.
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 : Eutrophication results in reduction of a) Dissolved nitrate b) Dissolved Oxygen c) Mineral salts d) Parasitic protozoa.
Last Answer : b) Dissolved Oxygen
Description : Water logging of soil makes it physiologically dry because- (a) This condition does not allow the capillary force to work b) this condition does not allow oxygen to enter the soil C) both (a) and (b) d) none of these
Last Answer : b) this condition does not allow oxygen to enter the soil
Description : Carbon monoxide, emitted by automobiles prevents transport of oxygen in body due to
Last Answer : Carbon monoxide, emitted by automobiles prevents transport of oxygen in body due to A. ... haemoglobin D. forming stable compound with haemoglobin.