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Author Question: Hydroxyapatite found in bone matrix contains a combination of which molecules in its crystalline ... (Read 68 times)

bucstennis@aim.com

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on: Jun 25, 2018
Hydroxyapatite found in bone matrix contains a combination of which molecules in its crystalline structure?
 
  a. Calcium and magnesium
  b. Calcium and phosphate
  c. Phosphate and magnesium
  d. Magnesium and hydrogen

Question 2

A newborn is diagnosed with biliary atresia. What is the long-term treatment for this disorder?
 
  a. Immunoglobulins
  b. Liver transplant
  c. Bone marrow transplant
  d. Dietary modifications


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aburgess

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Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: B
Calcium and phosphate form amorphous (fluid) calcium phosphate compounds that are convert-ed, in stages, to solid hexagonal crystals of hydroxyapatite. Hydroxyapatite does not contain magnesium or hydrogen.

Answer to Question 2

ANS: B
The treatment for biliary atresia is liver transplant. Long-term treatment for biliary atresia is not associated with immunoglobulins, bone marrow transplant, or dietary modifications.


bucstennis@aim.com

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Reply 2 on: Jun 25, 2018
Gracias!

Dominic

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Reply 3 on: Yesterday
Excellent

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