In the Stoll egg countprocedure , which acts as the diluent ?A. EtherВ. HСC. NSSD. NaOHE. Distilled waterBoiled sugar solution is theprimary reagent for this test:A. FECTВ. АЕСТC. ZnSO4D. Sheather'sE. Brine

Introduction The Stoll egg count procedure is a method of estimating the number of hookworm eggs or…

Answered: In the Stoll egg count procedure ,…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Indicate whether you think that the number of cfu/ ml calculated would be too high or too low if you make this mistake. 1.You intend to add 9ml of broth (water) to each tube and 1 ml of culture. Instead, you add 5 ml of broth to each tube and 5 ml of culture to the first tube. Then, you make a serial dilution of 1 ml into and from each tube as described. 2. You prepare 9 ml of broth (water) in each tube. You add 1ml of culture of every tube. 3.You add 9 ml of broth (water) to each tube. You add 1 ml of culture to the first tube and mix. You get distracted, and transfer 1ml of the dilutant (mixture of culture and broth) to the third tube instead of the second. You perform the rest of the series as described.
An inoculating loop must be flamed to uniform orange-hot from base to tip A. after culture is transferred to the wire loop but before transfer to new media B. before culture is transferred to the wire loop and after culture is transferred from the wire loop to new media C. after culture is transferred to the wire loop and before culture is transferred from the wire loop to new media D. before culture is transferred to the wire loop
You pipette 1mL from a 30mL starting culture into a 99mL blank labeled A. You plate 1mL and 0.1mL of blank A onto plates B and C, respectively. Plate B has 310 colonies and Plate C has 31 colonies. What is the total cfu of the original culture? Select one: a. 9.3e5 b. 3.1e3 c. 3.1e4 d. 9.3e4 e. 3.1e5
RODAC plates will be used for which exercise? Select ALL that apply. A. Soil microbe enumeration B. Bacterial count in meat C. Hand-washing D. Environmental sampling
1. Dihybrid test cross GGWW with ggww. 2. Dihybrid test cross GGWw with ggww. 3. Dihybrid test cross GgWW with ggww. 4. Dihybrid test cross GgWw with ggww.
Which of the following medium would be most appropriate for the bacterial cultures from stomach? a. LB b. Selective C. Differential d. Nutient
Among the many methods, please identify Bacillus cereus bacteria, in staining reactiontests, such as A.simple staining B.gram staining C. isolation tests To distinguish specific cultural characteristics of Bacillus cereus bacteria, please explain how to identify Bacillus cereus in these tests below? D indole test, E.starchhydrolysis test F. citrate test.
Which isolation technique is best used in isolating microorganisms (in countable good plates) from a gram of soil sample with expectedly high microbial count? A. Streak Plate technique B. Serial Dilution-Pour Plate technique C. Spread Plate technique D. Hanging Drop technique 2. Which materials are needed in isolating bacteria using Streak Plate technique? Check all that apply. ( )nutrient agar plate ( ) inoculating loop ( ) microbial inoculum ( ) flame source 3. Which term refers to that solution of sterile distilled water/normal saline/peptone water used to "thin out" dense microbial populations in Serial Dilution-Pour Plate technique used in the isolation of microorganisms? A. inoculum B. culture medium C. diluent D. microbial culture
2. Match the following molecules with the-corresponding test reagents that are used to identify them. Also, indicate the positive test color and what reagent component reacts with what specific chemical group that is responsible for a + test result Protein D Starch C Amino Acids B Sugar G Lipids A DNA F RNA E A. Sudan IV B. Ninhydrin C. Iodine D. Biuret E. Orcinol F. Diphenylamine G. Benedict
Your nasal sample showed colonies with a clear halo around them on blood agar. What can you determine based on that observation? a. The organism is a mannitol fermenter b. The organism is able to utilize starch c. The organism is reducing the hemoglobin and damaging the erythrocytes d. The organism is beta-hemolytic e. The organism is unable to use red blood cells as a nutrient source
5. Repeat the timing procedure for the remaining pairs of test tubes in this order: 0.1 mg/ml, 0.25 mg/ml, 0.5 mg/ml, 2.0 mg/ml, 5.0 mg/ml. 6. Record all data and answer questions below. b. Results C. 1. Record your data below. Concentration of Amylase 0.1 oil 0.25 0.25 0.5 0.25 1.0 51.0 2.0 2.0 St 2. 3:0 2. Endpoint time in Seconds 270+ 120+ 40€ 30* 20+ tot 8.0 Plot a graph comparing the amylase concentration with the time required to completely digest the starch (called: endpoint). The values of the independent variable (amylase concentrations) should be plotted on the horizontal or X axis of the graph. The endpoints (values of the dependent variable, or data) should be plotted on the vertical or Y axis. Questions 1. What is the relationship between the enzyme concentration and the endpoint times? 58 During the exercise, what variables are held constant? What variables are manipulated? What variables are being measured? Held constant?
6. Which of the following statement is the most appropriate for the description of a sample which has been filtered with 0.2 um syringe filter A. The sample is sterile B. All bacteria in the sample are removed C. Most of the cells or substances larger than 0.2 um are removed D. The sample was cleaned

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In the Stoll egg count procedure , which acts as the diluent ? A. Ether В. HС C. NSS D. NaOH E. Distilled water Boiled sugar solution is the primary reagent for this test: A. FECT В. АЕСТ C. ZnSO4 D. Sheather's E. Brine