In which form
(i) oxygen is carried to the tissues?
(ii) CO2 moves out of the blood?
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The blood leaving the tissues becomes richer in
(a) carbon dioxide
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During deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in the
(a) cytoplasm
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A man with blood group A marries a woman with blood group O and their daughter has blood group O.
No. This information is not sufficient to determine which of the traits − blood group A or O − is dominant. This is because we do not know about the...
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The two forms of oxygen found in the atmosphere are (a) water and ozone (b) water and oxygen (c) ozone and oxygen (d) water and carbon-dioxide
(c) ozone and oxygen
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How are simple tissues different from complex tissues in plants?
Simple tissues are made up of one type of cells which coordinate to perform a common function. Complex tissues are made up of more than one type of cells. All these...
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Dehydration of alcohols to form an alkene is always carried out with conc. H2SO4 and not with conc. HCl or HNO3. Explain.
In acidic medium alcohols protonated then loses H2O to form a carbo cation. If HCl Cl- strong nucleophile cause nucleophilic substitution, HNO3 causes oxidation.
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The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in –
(d) capillaries
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Transplantation of tissues/organs to save certain patients often fails due to rejection of such tissues/organs by the patient.
d. cell-mediated immune response
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Although both CO2 and H2O are triatomic molecules, the shape of H2O molecule is bent while that of CO2 is linear.
CO2 molecule has only two bonds which lie farthest to each other to minimise repulsion, making an angle of 180°. H2O, on the other hand, has a lone pair. As lone...
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In a hospital an oxygen cylinder holds 10 L of oxygen at 200 atm pressure. If a patient breathes in 0.50 ml of oxygen at 1 atm with each breath,
Apply Boyle’s Law P1 V 1= P 2 V 2 200 x 10 = 1 x V 2 V2 =2000 L No. of breaths = Total volume/ vol. consumed per breath =2000/0.5x10 -3 L =4x106
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