w i 1) Destruction of the ozone layer takes place when its component ozone (03) is convertedO3 + 0202into oxygen gas (O2) as shown by the following chemical equation.Although degradation of O3 happens naturally, there are some man-made substances thatcause this process to take pla ce at a rate which is harmful to the environment. One suchsubstance is chlorofluorocarbon or CFC. In the presence of ultraviolet (UV) radiation, ade chlorine (Cl) atom from CFC reacts with O3 and converts it to 02 at a faster rate. This isCl + O3 → Clo + O2Clo + 0- Cl + O2shown by the 2 equations below.In this process, the chlorine atom acts as2) Pepsin is an enzyme present in gastric juice. In the stomach, it catalyzes the breaking !down of proteins into shorter polypeptides. Therefore, proteins areof pepsin.the3) The unstable compound that is formed when the disaccharide maltose binds with theactive site of the enzyme maltase is called4) The binding of ATP with the enzyme pyruvate kinase results in this enzyme's failure tocatalyze the last step in the breakdown of glucose during the process of glycolysis. In thissituation, ATP acts as theof pyruvate kinase.5) A particular chemical reaction will only proceed if the particles of its reactants possess250 kJ/mol is theenergy that is greater than 250 kilojoules per mole (kJ/mol).for this reaction.6) Many of the enzymes involved in photosynthesis aid in chemical reactions that removeelectrons from the oxygen atoms in water and transfer these electrons to the carbon atomsin carbon dioxide. Based on the kind of reaction that they catalyze, these enzymes areclassified as7) Based on where they perform their functions, the enzymes amylase and maltase in humansaliva are classified as8) In order for the enzyme lactase to catalyze the digestion of lactose into themonosaccharidesglucose and galactose,of the enzyme.lactosemustfirstbindtothe9) A certain protein can only act as a catalyst if it is linked with the B vitamin biotin. Thisproteiniscalledandbiotinisits

Here, we have to answer the questions related to variable topics in biology.

1) Destruction of the ozone layer takes place when its component ozone (O3) is converted into oxygen gas (O2) as shown by the following chemical equation. O3 +0-202 Although degradation of O3 happens naturally, there are some man-made substances that cause this process to take place at a rate which is harmful to the environment. One such substance is chlorofluorocarbon or CFC. In the presence of ultraviolet (UV) radiation, a chlorine (Cl) atom from CFC reacts with O3 and converts it to O2 at a faster rate. This is shown by the 2 equations below. Cl + O3 → Clo + O2 Clo + 0- Cl + 02 In this process, the chlorine atom acts as 2) Pepsin is an enzyme present in gastric juice. In the stomach, it catalyzes the breaking 1 down of proteins into shorter polypeptides. Therefore, proteins are the

1) Destruction of the ozone layer takes place when its component ozone (O3) is converted into oxygen gas (O2) as shown by the following chemical equation. O3 +0-202 Although degradation of O3 happens naturally, there are some man-made substances that cause this process to take place at a rate which is harmful to the environment. One such substance is chlorofluorocarbon or CFC. In the presence of ultraviolet (UV) radiation, a chlorine (Cl) atom from CFC reacts with O3 and converts it to O2 at a faster rate. This is shown by the 2 equations below. Cl + O3 → Clo + O2 Clo + 0- Cl + 02 In this process, the chlorine atom acts as 2) Pepsin is an enzyme present in gastric juice. In the stomach, it catalyzes the breaking 1 down of proteins into shorter polypeptides. Therefore, proteins are the

Essentials of Pharmacology for Health Professions

7th Edition

ISBN:9781305441620

Author:WOODROW

Publisher:WOODROW

Chapter11: Vitamins, Minerals, And Herbs

Section: Chapter Questions

Problem 1CRQ

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Ozone in the upper atmosphere is depleted when it reacts with nitrogen oxides. The rates of the reactions of nitrogen oxides with ozone are important factors in deciding how significant these reactions are in the formation of the ozone hole over Antarctica as shown. One such reaction is the combination of nitric oxide, NO, with ozone, O3:
Chloroform is a volatile (readily changes from liquid phase to gaseous phase) once commonly used in the laboratory but now being phased out due to its ozone depletion potential. If the pressure of gaseous chloroform in a flask is 195 Torr at 25°C and its mass for 1 liter of gas is 1.25 g, what is the molar mass (g/mol) of chloroform? O None of these O 119 g/mol 10.0 g/mol O 76.3 g/mol
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I have always enjoyed eating tuna fish. Unfortunately, a study of the mercury content of canned tuna in 2010 found that chunk white tuna contains 0.6 ppm Hg and chunk light tuna contains 0.14 ppm. (S. L. Gerstenberger, A. Martinson, and J. L. Kramer, Environ. Toxicol. Chem. 2010, 29, 237.) The U.S. Environmental Protection Agency recommends no more than 0.1 mg Hg/kg body weight per day. I weigh 68 kg. How often may I eat a can containing 6 ounces (1 lb 5 16 oz) of chunk white tuna so that I do not average more than 0.1 mg Hg/kg body weight per day? If I switch to chunk light tuna, how often may I eat one can?
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Dust explosions can be destructive and deadly, so how can this occur and would how you classify this reaction?
if fish ina certain lake are reported to contain 4.0 ppm by weight DDT,(a) what percentage of the fish meat is DDT? (b) how much of this fish would have to be consumed to reach a poisoning accumulation of 19g of DDT?
In The Flint Water Crisis, trihalomethanes were produced in the new water supply due to the combining of with Ferric chloride then was added, which fortunately but unfortunately , resulting in water contamination. Orthophosphates would have helped to prevent this problem by