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Author Question: A sputum from a cancer patient grew a pink colony on MAC. The biochemical reactions were as follows: ... (Read 107 times)

craiczarry

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on: Jun 25, 2018
A sputum from a cancer patient grew a pink colony on MAC. The biochemical reactions were as follows:
 
  TSI A/A 37C SIM // 25C SIM //
   MR/VP /+ Citrate + Urea +
   PAD  ONPG + Arginine
   Lysine + Ornithine
  What colony characteristic is often associated with this organism?
  A) Yellow pigment B) Mucoid C) Red pigment D) Swarmer

Question 2

Saline, rather than fresh water, is used to prepare smears of bacteria for Gram stain because
 
  A) saline has a lower osmotic pressure than the organism and the organism cell swells.
  B) fresh water affects the Gram stain reaction and causes inaccurate results.
  C) fresh water rushes into the cell due to its low solute concentration and the cell swells.
  D) saline has a high solute concentration causing water to flow out of the cell and it shrinks.


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Liddy

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

B

Answer to Question 2

C


craiczarry

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Reply 2 on: Jun 25, 2018
Wow, this really help

at

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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