What is the purpose of the mordant?
Increases the number of colonies grown during incubation |
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Dilutes the sample |
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Iodine complexes the crystal violet to the peptidoglycan layer |
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All of the above |
Answer: Iodine complexes the crystal violet to the peptidoglycan layer.
( The iodine get stick to the gram positive bacteria due to the peptidoglycan layer. It leads in identification of the gram negative bacteria.)
What is the purpose of the mordant? Increases the number of colonies grown during incubation Dilutes...
- Which of the following pairs is mismatched? d. iodine mordant e. none of the above a. alcohol-decolorizer b. crystal violet-basic dye c. safranin-acid dye 2, Suppose you Gram stained a sample from one colony and observed a field of red and blue cocci. Adjacent cells were not always the same color. You could conclude that you have d. old cells e. made a mistake a. a mixed culture b. young cells c. dividing cells 3. Which of the following...
Question 1 1 pts What is the purpose of utilizing brine (saturated sodium chloride solution) during the liquid-liquid extraction portion of the bromohydrination of cyclohexene? To lower the solubility of organic molecules in the organic layer. To stabilize the carbocation formed during the course of the reactions. To remove excess water from the organic layer of the reaction. To ensure that enough water is present for the reaction to generate an alcohol. Question 2 1 pts Which of the following...
adım sua LISNA SPECIAL MATCHING Match only within the horizontal lines. Match the items on the right with the termsstatements questions on the left to give the one best answer. Use answers only once. Use all. 54. White colonies, G-) rods in chains 2. Bacitus 55. Pink colonies, G-) rods, irregular b. Mycobacterium 56. Yellow colonies, G(+) cocci in tetrads C. E. coli 57. Endospore forming, G(+) rods in chains d. Serratia 58. Acid fast, G(+) rods, irregular Micrococcus luteus...
Suppose that during 2017, the market for Mason's special-purpose machines grew by 6%. All increases in market share (that is, sales increases greater than 6%) are the result of Mason's strategic actions. Mason Corporation makes a special-purpose machine, D4H, used in the textile industry. Mason has designed the D4H machine for 2017 to be distinct from its competitors. It has been generally regarded as a superior machine. Mason presents the following data for 2016 and 2017. E: (Click the icon...
Determine what change occur during position emission .(a) , The mass number and atomic number increases. (b), The mass number and atomic number do not change .(c) , The mass number decreases and the atomic number is unchanged.(d), The mass number is unchanged and the atomic number decreases. (e), The mass number and atomic number decreases.
What statement is true regarding the collision theory? The number of collisions between reactant molecules increases with decrease of temperature. Molecules that are improperly oriented during collision will not react. All collisions of reactant molecules result in product formation. The number of collisions between reactant molecules increases with decrease of reactant concentrations.
Question 1 5 pts - What is the purpose of melting point? All the answers To check the purity of solids To check identity of unkown solids To publish for new solids for future characterization Question 2 5 pts How does impurity change melting point value and range? increase-narrowing decrease-narrowing decrease-broadening O increase-broadening Question 3 5 pts What is the reason of an impurity affecting melting point of a solid? Watch Mel. Point Theory video. Not known Obc it weakens...
Question 1 5 pts - What is the purpose of melting point? All the answers To check the purity of solids To check identity of unkown solids To publish for new solids for future characterization Question 2 5 pts How does impurity change melting point value and range? increase-narrowing decrease-narrowing decrease-broadening O increase-broadening Question 3 5 pts What is the reason of an impurity affecting melting point of a solid? Watch Mel. Point Theory video. Not known Obc it weakens...
Grignard Reaction with a Ketone: Triphenylmethanol Introduction: The purpose of this lab is to prepare phenylmagnesium bromide, a Grignard reagent, and react it with benzophenone to give triphenylmethanol. Grignard reagents are very reactive and must be synthesized in an environment free of water or any other source of potential proton donor. Once made, the Grignard reagent will do a nucleophilic attack on the carbonyl carbon of the ketone, benzophenone. The result is an alkoxide that is then protonated to give...
This frequency distribution shows the number of pounds of each snack food eaten during the Super Bowl. Construct a pie graph for the data (20 points). Snacks Potato chips Tortilla chips Pretzels Pop Corn Snack nuts Pounds (Frequency) 11 million 8 million 4 million 3 million 2 million a) What is mode b) What is the sample size c) From the table above, construct Categorical Frequency distribution showing the relative frequencies (percent) column. d) Construct a Pareto Chart for this...