Demetrius

TSI Agar correct answer: *stab and drag *yellow= acid production/ fermentaion of the sugars in the slant/butt. *red= negative *black= H2S production (salmonella or proteus) what are we looking for in the Indole test after adding kovacs reagant? correct answer: * a red ring which indicates that the amino acid tryptophan has been degraded into indole. Methyl red test results? correct answer: red= lots of acid (PH of 4) normally yellow=acidic Simmons citrate correct answer: to see i...

Organisms that require specialized environments due to complex nutritional requirements are known as...? correct answer: fastidious organisms The blood agar plate (BAP) is an enrichment medium that tests for fastidious organisms such as? correct answer: Streptococcus spp. (species) The blood agar permits demonstration of what property of microbes, such as streptococci...? correct answer: hemolytic properties The blood agar test can show what three possible hemolytic results...? corre...

FeCl3 Used in a PAA agar to detect presence of phenylpyruvic acid positive green color. MAC agar What stain do you do on Day 1 of the unknown lab? You may Gram stain from your unknown broth to confirm if the bacteria are Gram-positive or Gram-negative. A throat culture performed by using a throat swab is used to detect which organism that causes strep throat? Group A Streptococcus Bacteria Which staphylococci is the most important bacteria in human disease? Staphylococcus Aureus W...

Phenylethyl alcohol agar PAA correct answer: Selective media- used to isolate specific groups of bacteria Isolation of mostly Gram positive organisms ** Phenylethyl alcohol ** inhibits Gram negative organisms colonies may be visible , but smaller in number and size Phenylethyl alcohol agar Media Test Reading correct answer: Lab results: S. aureus : Amount of growth (1 + ) Appearance of growth ( light golden ) Appearance of medium (----------) E. faecalis : Amount of grow...

TSI stands for correct answer: Triple Sugar Iron If peptone is metabolized then what is made correct answer: Ammonia What are the 3 carbohydrates present for TSI correct answer: Glucose Sucrose Lactose Glucose is a correct answer: monosaccharide Sucrose and Lactose are correct answer: disaccharides Monosaccharides differ from disaccharides by correct answer: using less energy to be broken down Ph indicator that is used is correct answer: Phenol Red The color of the ag...

What sugars does triple sugar iron agar contain? correct answer: 1% Lactose 1% Sucrose 0.1% Glucose (Dextrose) What is TSI used for? correct answer: To differentiate enterics based on the ability to reduce sulfur and ferment carbohydrates What is fermented with a red (alkaline) slant and a yellow (acid) deep? (K/A) correct answer: Only glucose What is fermented with a yellow (acid) slant and a yellow (acid) deep? correct answer: Glucose and Lactose and/or Sucrose What is fermen...

TSI stands for________________________? correct answer: Triple Sugar Iron What is the sulfur source in TSI agar? correct answer: Sodium thiosulfate A red slant and a red butt with TSI agar indicates that the microorganism ________? correct answer: Cannot ferment A red slant and a yellow butt with TSI agar indicates that the microorganism ________________________________? correct answer: Ferments only glucose Why must TSI agar be read, 24 hours after inoculation? correct answer: ...

If there are 2.2 pounds in 1 kilogram, how many pounds are there in x kilograms? correct answer: 2.2x The bar graph above shows the number of customers who stopped at a store Monday through Thursday of one week. If the number of customers on Friday was a one-fifth increase over the number of customers on Thursday, how many customers shopped at the store on Friday? correct answer: 480 Last year, a bakery sold w loaves of bread. This year, the bakery sold three more than twice the number o...

In 2010, talk show host Oprah Winfrey and novelist Jonathan Franzen kissed and made up after a nine-year feud. In 2001, Franzen was disinvited from appearing on Winfrey's TV show to pitch his novel The Corrections after he made it clear that he was unhappy about the book's being chosen for the Oprah Book Club. Describing his work as "in the high-art literary tradition," Franzen said he didn't want to be associated with the Club, which he accused of occasionally choosing "schmaltzy, one-di...

The microwave's buzzer sounded dinner was ready. a. The microwave sounded dinner was ready b. The microwave sounded, dinner was ready. c. The microwave sounded since dinner was ready. d. The microwave sounded, since dinner was ready. correct answer: c. The microwave sounded since dinner was ready. By setting aside time to study everyday, a grade point average is sure to improve. a. By setting aside time to study everyday, a grade point average is sure to improve. b. By setting asi...