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Author Question: The nursing instructor is explaining mechanisms of substance transport across the placenta. Which ... (Read 49 times)

iveyjurea

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on: Jun 28, 2018
The nursing instructor is explaining mechanisms of substance transport across the placenta. Which substances require facilitated diffusion? (Select all that apply.)
 
  A.
  Carbon dioxide
  B.
  Fatty acids
  C.
  Globulins
  D.
  Glucose
  E.
  Oxygen

Question 2

The perinatal nurse explains to a student the different mechanisms by which substances are transported across the placenta. Which mechanisms are included? (Select all that apply.)
 
  A.
  Active diffusion
  B.
  Bulk flow
  C.
  Endocytosis
  D.
  Osmosis
  E.
  Pinocytosis


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DylanD1323

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Reply #1 on: Jun 28, 2018
Answer to Question 1

ANS: D, E
Glucose and oxygen require facilitated diffusion to cross the placenta. Carbon dioxide and fatty acids move by simple diffusion. Globulins move via pinocytosis and endocytosis.

Answer to Question 2

ANS: A, B, C, E
Several mechanisms exist to transport substances across the placenta. These include passive or simple diffusion, facilitated diffusion, active diffusion, pinocytosis, endocytosis, bulk flow, accidental capillary breaks, and independent movement.


iveyjurea

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Reply 2 on: Jun 28, 2018
Thanks for the timely response, appreciate it

cdmart10

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Reply 3 on: Yesterday
Wow, this really help

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