Log in
Biology
7
answers
0
watching
147
views
10 Jan 2018

a) What is the purpose of the high sodium chloride content in this medium (MSA)?

b) Mannitol salt agar is used to isolate and differentiate one organism specifically. What genus and species name of this organism?

c) Why does the medium change color for some organism?

Watch
7
answers
0
watching
147
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Nestor Rutherford
Nestor RutherfordLv2
13 Jan 2018
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

You plate a sample containing two different bacterial species onto MacConkey agar and Mannitol Salt Agar plates. Nothing grows on the Mannitol Salt Agar. One colony type grows up on the MacConkey plate. It is pink in color. What can you conclude about your two mystery bacteria (explain how you arrived at your conclusions)? What media would you use next to isolate the second species and why did you pick that media?

1.

If you were to make Columbia CNA with 5% sheep blood agar plates with twice as much colistin, how would the results likely be affected?

Select one:

a. Less Gram-positive growth, more Gram-negative growth

b. Less Gram-positive growth, no or even less Gram-negative growth

c. More Gram-positive growth, more Gram-negative growth

d. More Gram-positive growth, no or even less Gram-negative growth

e. Same Gram-positive growth, no or even less Gram-negative growth

2.

In Mannitol Salt Agar lab, you were told to invert the plate before incubation. This is a common practice to avoid:

Select one:

a. Condensation drops

b. Increased smell

c. Decrease oxygen content

d. Bacteria from growing in wrong direction

e. Airborne contamination

3.

If you see a yellow halo surrounding a colony on a MSA plate, which of the following is likely to be true?

Select one:

a. Glycolysis occurred

b. The organism is Staphylcoccus epidermidis

c. Colonies are not isolated

d. Fermentation occurred

e. Colony is Gram-negative

4.

Which one of the following is found in MSA plates, but not in NA plates?

Select one:

a. Phenol red

b. Agar

c. Tryptose

d. Peptone

e. Beef extract

5.

Why are the three organisms of Phenylethyl Alcohol Agar lab inoculated on the same plate?

Select one:

a. To avoid contamination

b. For easy viewing purposes.

c. To save resources

d. To avoid fluctuations in medium content and environmental effects.

6.

For which reason would you most likely use a PEA plate for culturing after taking a sample from a patient?

Select one:

a. To isolate Streptococcus and Staphylococcus from other fecal bacteria.

b. To detect Escherichia contamination on the skin.

c. To find E. coli strains associated with food poisoning.

d. To identify gram-negative anaerobes in the patient's flora.

Please address the following about your endangered organism:

1. State the organism's genus and species and common name ifapplicable

2. State the area in which this organism lives

3. Is this organism a producer or a consumer? Where does it or didit fit into the ecosystem?

4. Discuss why is it threatened (habitat loss, change in climate,etc.)

5. How have human's impacted the survival of this species - bothnegatively and positively

6. What level of effort should we expend on saving endangeredspecies? What can be done to help them survive (and in particularyour chosen organism)?

Related Documents

BIO 2200 Lecture Notes - Lecture 3: Polymerization, Motility, Numerical Aperture
olivewoodchuck180
BIO 3124 Lecture Notes - Lecture 11: Autolysin, Mreb, Hemolysis
blackprairie-dog221
Biology BIO 2440
Final Exam
Study Guide
Biology BIO 2440 Study Guide - Final Guide: Macconkey Agar, Methylene Blue, Eosin Y
scarletmosquito832

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in