1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sesenic [268]
3 years ago
12

What is the concentration of a suspension that grew 89 colonies on a plate with a dilution of 1:100?

Biology
1 answer:
mafiozo [28]3 years ago
3 0

Answer:

8900 CFU/mL

Explanation:

Colony Forming Units (CFU) is a value that indicates the degree of microbiological contamination of an environment. It expresses the relative number of microorganisms of a given taxon in a volume of one cubic meter of water.

UFC is the minimum number of separable cells on the surface, or inside, of a semi-solid agar medium that results in the development of a visible colony of the order of tens of millions of descending cells. The CFUs can be pairs, chains or clusters, as well as individual cells. Colony forming unit.

Calculation

Colonies * Dilution = CFU/mL

89          *  (100/ 1 mL) = CFU/mL

8900 CFU/mL

You might be interested in
Extinction of an animal or bird leads to ecological Instability. Do you Agree with this statement? Justify.
ch4aika [34]

Answer:

Explanation:Humanity must stop the pace of wildlife extinctions — or face extinction itself, according to a growing body of research.. At a time when more than 1 million species are at risk of extinction — and the links between human health and the health of the planet are clear — the stakes have never been higher, experts say.

4 0
2 years ago
When acids are added to a solution, the pH should ________.
Juli2301 [7.4K]

Answer:

increase

Explanation:

because acidity has been increase d

7 0
2 years ago
Read 2 more answers
Which of the following professions has NOT contributed significantly to the development of therapeutic use of herbs and pharmace
algol13
The correct answer is ANTHROPOLOGIST.
An anthropologist is a professional, who engaged in the study of various aspects of human within past and present societies. Such professionals are involved in the research and study of socio-historical, linguistic, and biological aspects of human. Biologist, chemist and botanist are actively involved in the development of drugs.<span />
4 0
3 years ago
Why do cells stay small
Dafna1 [17]
Ans: Cells are so small because it allows them to have a better surface area to volume ratio. This makes it much easier for the cell to bring in necessary nutreints and excrete wastes. Also the smaller the cell is, the less time it takes to replicate the small cell as opposed to a bigger cell.
6 0
2 years ago
What do you call the missing part of rock record ?
viva [34]

The answer should be an unconformity

7 0
2 years ago
Other questions:
  • Dr. Martin has just asked a potential client to talk about herself. As she responds, the doctors next question is based on some
    8·1 answer
  • What impacts do you think the burmese pythons might have on local ecosystem
    12·1 answer
  • What<br> happens<br> when DNA<br> replicates?
    15·1 answer
  • How do cells communicate in the body
    11·1 answer
  • What is the answer to question 14
    7·1 answer
  • Which of the following stars will live for the longest period of time? A) A huge star B) A medium sized star C) A blackhole D) A
    12·1 answer
  • What would happen if one of the chromosomes in a homologous pair failed to separate from its homologue at the end of metaphase I
    15·2 answers
  • PLEASE HELP PLEASE PLEASE
    7·1 answer
  • What question do you have about purberty.
    8·1 answer
  • PLEASE PLEASE HELP !!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!