Download Name: :______ Virtual Lab: Investigating Bacterial Growth Go to my

Name:____________________Hour:_______
Virtual Lab: Investigating Bacterial Growth
Go to my website, click on “Microbial Growth” and “Investigating Bacterial Growth”, open this document and click on the
link below.
Website address: http://www.classzone.com/books/hs/ca/sc/bio_07/virtual_labs/virtualLabs.html Click on the name of
the lab with the title of this paper. You will NOT BE PRINTING anything off this website. Just follow the directions on this
sheet.
NOTE!!!! IN ORDER TO SEE THINGS BETTER ON YOUR COMPUTER SCREEN, YOU CAN RIGHT CLICK AND THEN SELECT
“ZOOM”. FROM THERE YOU CAN CLICK AND DRAG THE SCREEN AROUND TO WHERE YOU NEED IT.
Click on the BACKGROUND button, and fill in the information that is missing below:
Many species of bacteria don’t need ___________to live. Some can survive on a _________ amount of oxygen, while
others grow _________________ it when oxygen is scarce. Most bacteria that live in our body are ______________ and
rarely cause any help problems. In fact, some are _____________________. Bacteria in our intestines help _________
_________while other types help ______________harmful bacteria from growing.
_______________ of bacteria are found living in various types of _______________ environments, such as very
_____________ conditions (salt flats, which are dry lake beds) in extremes of __________ and ___________ such as in
the _______________________vents or the _____________________ice and in very acidic conditions like our
___________________.
Summarize the PROBLEM that you are investigating by completing the statements.
What is wrong with the can of vegetables?
How did the restaurant owner know there was a problem? What was the indicator?
What is your goal/objective:
In this investigation, you will…..
List all of the MATERIALS that you have at the lab station to perform this lab. (Checklist)
As you click on the different materials, discover the answer to each of the following questions.
Why do you need a biohazard container?
What’s the inoculating loop for?
Do the 3 vials have the same species of bacteria?
What does medium A contain?
Medium B?
Anaerobic means ___________________
What is the purpose of the incubator?
Begin with the PROCEDURE : After you type in your prediction, write in what you have predicted in the space
provided.
Draw a diagram below showing how the test tubes are set up, labeling them with the type of medium and the
bacteria species in each test tube.
How long do the test tubes incubate? What temperature are they incubated at?
Fill in the observation data table in the lab notebook, and then copy it below:
After you fill in your OBSERVATION TABLE, draw, label and shade what you see in each test tube for growth.
Fill in the results table and copy it to the right:
CONCLUSION
Do not type in your answers to the five different conclusion questions. You are done at this point. Just write them in
the space provided below.