6 Which of the echniques as part of their work a Louis Paste

6. Which of the echniques as part of their work? a. Louis Pasteur b. Ferdinand Cohn c. Robert Hooke d. Walther Hesse 7. Which of the following describes the enrichment culture technique? a. A new species of antibiotic resistant bacteria was discovered when they grew in the presence of antibiotics. b. The batch of your homebrewed beer tasted excellent, but the first one was horrible, so you threw that one out and decided to use the foam from the second batch to start a new brewing process. c. You are specifically interested in bacteria that can withstand high temperature. You boil the soil from your backyard before adding them to a sterile culture liquid. d. All of the above.

Solution

Answer1:
-Robert Hooke give cell theory without using sterilizing techniques. So answer is Robert Hooke.
-Walther Hesse work in developing agar as a medium for culturing microorganisms by using sterilizing techniques.
-Ferdinand Cohn established the use of sterile culture mediums and rediscovered the botanical garden
-Louis Pasteur use aseptic technique and pasteurisation. Aseptic technique is a process to stop contamination by microorganisms. An example of aseptic technique is sterilisation using alcohol or flames.

Answer2:
An enrichment culture is a medium with specific and known qualities that favors the growth of a particular microorganism. The enrichment culture will support the growth of a selected microorganism, while inhibiting the growth of others.
So in these three examples particularly we want specific microorganism(new sps of antibiotic resistant bacteria,tasty beer homebrew beer production, bacteria that can withstand Temp)
So answer is all of the above.