5. Is sugar candy really bad for your teeth? Toothdecay is the result of the dissolving of toothenamel, Ca5(PO4);OH(s). In the mouth thefollowing equilibrium is established:Ca(PO,,OH5 Ca,+ 3 PO, + OH",(N)a) When sugar ferments on the teeth, H*ion isproduced. What effect does this increased H+'ion have on tooth enamel?b) How would increased concentrations of Ca*2ions influence this system in chemicalequilibrium? Suggest a method to increase theCa* ion concentration in your body. c)Research has indicated that if teeth are bathed insolutions containing appropriate amounts ofSr*2 ions or F ions, the dissolving process maybe reversed. Suggest an explanation for thesefindings.

Yes, sugar candies are bad for the teeth, in fact any sweet food items containing sugar is bad if…

Answered: 5. Is sugar candy really bad for your…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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5. Which class or reactions results in the making of all macromolecules: a) dehydration synthesis of monomersà polymers with the loss of an H2O with the addition of each monomer b) hydrolysis with the addition of one H2O for each reaction c) oxidation with the loss of an e- d) reduction with the gain of an e-
1.After a meal, most dietary fat is transported to the bloodstream in particles known as -chylomicrons -high-density lipoproteins - low density lipoproteins -very-low-density lipoprotein 2.All of the following statements about linolenic acid are correct EXCEPT: -It is found in a wide variety of -foods. It is 18 carbons in length. -It is an omega-3 fatty acid. -It is essential. 3.Triglycerides perform which of the following functions in the body? -All answers are correct Provide -energy Insulation -Shock absorption 4.Which of the following is a benefit of consuming omega-3 fatty acids? -They may play a role in the prevention and treatment of heart disease. -They may decrease the risk of constipation. -Omega-3 fatty acids have less kcalories than saturated fats. -All of the answers are benefits of omega-3 fatty acids. 5.Which of the following is true about the digestion and absorption of protein? -Amino acids travel to the liver via -the portal vein. Protein digestion begins in the…
3. Attach the structures below to draw a sphingolipid. CH3-(CH2)12-CH=CH-CH-OH sphingosine CH–NH2 CH₂-OH H-O-P-0-H 0* HO NH2-CH₂-CH2-OH
25
8. Complex carbohydrates are starches that your body can convert to glucose, a type of sugar. Simple carbohydrate foods contain glucose, ready for immediate use by the human body. Breathing and burning glucose, C 6 H 12 O 6 , produces energy in a jogger’s muscles, according to the following unbalanced equation: C 6 H 12 O 6 (aq) + O 2 (g) → CO 2 (g) + H 2 O(g) Just before running, Maria eats two oranges. The oranges give her body 25 grams of glucose to make energy. The temperature outside is 27°C, and the atmospheric pressure is 102.3 kPa. Although 21% of the air Maria breathes in is oxygen, she breathes out about 16% of this oxygen. a) About what percentage of air does she use? d) How many litres of carbon dioxide gas does she produce? e) Suppose that the water vapour Maria breathes out is condensed to its liquid form. If the density of the water is 1.0 g/mL, what is its volume in litres and how many moles of water are these? Please answer completely will give rating surely All…
3 Consider the reaction shown below and answer the questions that follow. HO-P-0- OH bH H X OH BH (a) Name the enzyme that catalyzes this reaction. (b) Name the substrate and product indicated by the structures. (c) Which molecule is substrate X derived from?
Although the first two carbons of fructose and glucose are identical in structure to DHAP and GADP (from glycolysis), DHAP and GADP equilibriate on their in solution to favor the ketone over the aldehyde, while fructose and glucose do not. Why? a)The larger size of the molecule sterically hinders the isomerization b)The larger sugars have more OH groups which hydrogen bond and disrupt isomerization c)The larger sugars cyclize, and there is no carbonyl to isomerize in the cyclic form d)The larger sugars cyclize, and in the cyclic form the hydrogen bonding is very strong e)The larger sugars are less soluble in water than the smaller sugars
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14) If you performed a similar experiment to test the effects of pH on the activity of the enzyme pepsin, what would you predict to be optimal pH of pepsin? Why?
5. Draw the reaction curve for the follow a) A reaction with an activation energy (EA) = 50 and free energy ( G) = 20 %3D %3D b) A reaction with an activation energy (EA) = 30 and free energy ( G) = - 40 c) Indicate whether the reactions above are anabolic or catabolic Reaction a) %D Reaction b) = %3D
2. Identify whether the following fatty acids are saturated or unsaturated. a. CH3(CH2)5CH=CH(CH2)7COOH b. CH3(CH2)7CH-CH(CH₂)7COOH C. CH3(CH2) 10COOH d. CH3(CH2) 16COOH e. CH3CH2(CH=CHCH2) 3(CH2)6COOH

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