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What type of graph would be most appropriate in an experiment measuring the growth of bacteria over time?
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What is an example of an idependent variable?
Temperature is typically an independent variable used a lot of experiments. Say, for example, you are trying to see how temperature affects the growth rate of bacteria. You would know the values of temperature being used in the experiment because you are either increasing the temperature or decreasing it. The growth rate of the bacteria would be dependent on the temperature because increases and decreases in temperature could affect growth rate. In essence, the independent variable is typically the component you control in an experiment.
What is an organism that shows exponential growth?
Bacteria.
What does bacteria require for growth and replication?
The environment for which bacteria can grow must have the right environmental conditions. In addition, bacteria require nutrients such as nitrogen and minerals to use for metabolism
Fight invading bacteria by either slowing their multiplication or destroying them.?
Antibiotics.
Why is exponential growth seen as a bad thing?
Exponential growth is not nescecarily a bad thing - it much depends on what is exponentially growing. A common formula for exponential growth is: a * b^x b is you initial value, a is the factor and x is the amount of times you must multiply a with itself. A common example of 'bad' exponential growth is growth of bacteria or spread of flu. Let's assume you have a collony of 1000.000 bacteria (estimated). You have studied them and found that they effectively double their numbers every hour. b would be 1000.000. a would be 2 and x would be the amount of hours after the experiment was started (+1 because 1 would equal the time the experiment was started). The formula is then: 1.000.000*2^x When you come back after an hour, their numbers would then be 2.000.000. 2 hours after the experiment was started, their numbers would be 4.000.000 and 3 hours after it was started there would be 8.000.000. That's an example of bad exponential growth. The same can be done with flu infections. You know there are 1.000 infected people and as you don't know where any of them are, you can estimate that they'll (on average) infect 3 people every day. So the formula is 1.000*3^x where x is the number of days After 1 day there would be 3000 infected. after 2 days there would be 9.000 and after 3 days 27.000 would be infected. It's a good thing that in reality, these models are flawed. Other factors would count also and make the growth stop itself at some point - for example the bacteria would die when they ran out of food and the infected people would get well and stop infecting others after a few days. I hope this was the answer you were looking for, if not then please specify it more.
The dependent responding variable in this experiment is?
growth of bacteria as indicated by the turbidity in the test tubes
What factors do you think will inhibit the growth of the bacteria in a Lima bean and water experiment?
pH of water, chemicals in water, and temperature
Can bacteria grow in Vaseline?
Yes, In my Biology class we did an experiment on bacterial growth, I tested vaseline and a massive amount of mould and bacteria grow on it, it may not be able to see but it's there.
Is there an experiment that can show bacteria?
The Gram test is relatively common and simple, but cultivation in agar can also result in visible regions of bacterial growth.
How sound effect bacterial growth?
Sound significantly slows bacterial growth. In an experiment conducted in my college biology class, 6 dishes full of nutrient agar (bacteria food) were swabbed with bacteria from a students mouth and then closed and left to grow with music playing next to it. The bacteria that had music grew much, much less bacteria in the allotted time.
Miss Addie is doing an experiment with her chemistry class period of 3000 bacteria, with a growth constant k=2.8 per hour, are present at The beginning of the experiment, in how many hours Will there be 15,000 bacteria?
16
How does soda affect the growth of bacteria in agar?
It causes mutation in the case of E.coli. We used mountain dew and saw a significant increase in the frequency of E.coli in our experiment.
What is an example of an idependent variable?
Temperature is typically an independent variable used a lot of experiments. Say, for example, you are trying to see how temperature affects the growth rate of bacteria. You would know the values of temperature being used in the experiment because you are either increasing the temperature or decreasing it. The growth rate of the bacteria would be dependent on the temperature because increases and decreases in temperature could affect growth rate. In essence, the independent variable is typically the component you control in an experiment.
What are some techniques to measuring plant growth?
There are a few techniques to measuring plant growth. These include: measuring fresh weight, measuring dry weight, root mass, root shoot ratio. The Science Buddies website shows how one can measure plant growth using these techniques.
How can the growth of microorganism measured?
1_A spectrophotometer is used to determine turbidity by measuring the amount of light that passes through a suspension of cells. 2_An indirect way of estimating bacterial numbers is measuring the metabolic activity of the population (for example, acid production or oxygen consumption). 3_For filamentous organisms such as fungi, measuring dry weight is a convenient method of growth measurement.
What effect does Mercurochrome have on bacteria?
It will affect the growth of the bacteria.
How does glucose concentration affect the growth of bacteria?
the greater the conentraion, the faster the growth of bacteria. it is an energy source.
