What are some ways to create this experiment.?
Use the information at the site below for the basic pineapple enzyme reaction. Use the untreated solution as the control (enzymes still active). Repeat the experiment but subject the pineapple to different temperatures (other than room temp and boiling water) by using a water bath set to the temperature being investigated (perhaps 50 °C, 60 °C, 70 °C, 80 °C and 90 °C).
As a scientist you perform an experiment in which you create an artificial cell with a selectively permeable?
Don't listen to Little Miss Marmalad there. This question is all about equilibrium. By placing a cell with a lower glucose concentration into a beaker with a higher glucose concentration you are shifting the equilibrium. The system will try to return to equilibrium. So, just talk yourself through it. You've shifted the equilibrium. Water can pass through the membrane, and it will, so you can rule out c. ONLY water can pass through the membrane. Glucose isn't going anywhere. So you can rule out b and e. You are left with a and d. a- If water were to move out the cell (and into the solution), the cell would become more concentrated and the solution in the beaker more dilute. This would eventually bring the system back to equilibrium. This one looks right. d- Lets check just in case. If water were to move into the cell, the cell would become more dilute and the solution in the beaker more concentrated. This would shift the system even further out of equilibrium. WRONG.
Can you create an experiment that solves this problem?
Hypothesis 1 The rabbit will respire and excrete carbon dioxide so increasing the amount of CO2 in the air Hypothesis 2 The geranium will photosynthesise and consume CO2, so depleting the amount of CO2 in the air Hypothesis 3 The brick with neither use nor evolve CO2 so leaving the amount of CO2 in the air unchanged These three hypotheses can be combined as: The exiting air containing the most CO2 will come from the box containing the rabbit, the next most CO2 will come from the brick box, and the least CO2 will come from the geranium box. Now you have to design an experiment to measure the CO2 coming out of each box. The easiest way to do this is to use a solution of lime water. This is a saturated solution of calcium hydroxide in water and is made by decanting the clear supernatant from a suspension of calcium hydroxide. When a mixture of gases bubbling through lime water contain CO2, the CO2 reacts with the dissolved calcium hydroxide to form calcium carbonate which is insoluble in water and which therefore precipitates as a fine white suspension giving the solution a milky appearance. The more CO2 bubbled through, the cloudier the suspension formed. So, set up the boxes and put the end of the tube that takes the air away from the box into a beaker of lime water (separate beakers, one for each tube/box). Allow the experiment to run until a degree of cloudiness in present in all beakers. Then estimate the degree of cloudiness in each beaker. There are several ways you might do this: 1)You may be able to do this visually, getting a qualitative estimate of "most, least and middle amounts). 2) You could filter off the solid calcium carbonate from each solution, dry it gently and then weigh the amount of residue to get a quantitative result. 3) If you have access to a nephelometer or a spectrophotometer, you can measure the amount of light scattered or absorbed by the solution to get a quantitative result. 4) You could titrate equal volumes of cloudy lime water from each beaker, measuring the amount of dilute acid required to react all the calcium carbonate (acid will drive off CO2 as bubble causing fizzing, when adding further drops of acid does not evolve more CO2, the end point is reached and the amount of acid needed is proportional to the amount of calcium carbonate there at the start).
When you begin an experiment, why should you create a table to record your data?
Try an experiment. First - run an experiment where you use a data table to record your results. Second - do the same experiment but write your results down on any surface or scrap of paper that comes to hand. Compare your results, draw your conclusions.
When neutrons were discovered, were these neutrons created in the experiment?
neutrons were discovered by finding mass of an atom and number of protons present in it. Lavoisier proved that mass of 1 proton was 1 unit and mass of electron was taken as negligible. no neutrons were not created in experiment
Can you create an experiment that solves this problem?
You walk into a lab and find three sealed boxes. Each box is connected to an air pump, which, very slowly, pumps air into the box through a small plastic tube at the top of the box. Another small plastic tube at the bottom of the box allows air to escape. Inside each box is a light source and either a very sedated rabbit, a geranium or a brick. Using the scientific method, create several hypotheses and devise an experiment that proves each hypothesis in determining which of the boxes contains a brick, a rabbit or a geranium. The experiment may not run for more than three hours. You may use any piece of equipment or item we have previously used this semester in lab. You cannot touch or alter the box in any way.
Can you experiment on yourself with drugs that you created?
Nobody can stop you from experimenting on yourself, of course, but you must understand how unlikely you are to be doing any good for absolutely anybody.Developing a drug can require as long a decade or two from the idea stage to holding a usable dose in your hand. During that time there is significant safety testing in animals, and pilot studies to figure out if the drug even works a little bit. The first tests on humans are done on a a limited number (~40) paid volunteers. Final testing is done on a cast of thounds looking for information about both safety and efficacy.The only thing that a test on one person could show is that the new drug was really dangerous. If you didn’t get sick, there is still a significant chance that the next subject will.The cost of a bringing a new a new drug to market is beyond your imagination, but it can go into 8 digits.Suggestion. Don't even think at using yourself as the sole test subject. It could be very dangerous, and it has no chance of producing useful information.
How do I create an experimental design testing the effectiveness of two different antibiotics?
Here's the actual question: You are a microbiologist who has been hired by a drug company to determine if their new drug, "bacteriakill," is more effective than penicillin. Design an experiment to test the effectiveness of the two antibiotics. Your experimental design must include: a) a purpose b) appropriate safety precautions (aseptic techniques) c) an easy-to-follow, detailed procedure, written in third person d) an observation table that could be used to record data Help??????
What are the reasons scientist redo experiments?
Scientists redo experiments to see if they get the same results each time. Ideally, someone else someplace else tries to replicate the experiment.If both teams get the same result, then it was probably a real phenomenon that needs to be explained.If the original results can’t be replicated, then either the original results were just random chance that looked like a pattern, or there was something wrong in the experimental set-up or procedure (like a loose wire in Italy that made it look as if some particles were travelling faster than light, or a contaminated electrode that caused what looked like cold fusion).Scientists understand that extraordinary claims require extraordinary evidence. If you think your experiment shows something contrary to what we understand today about the laws of nature, you better get someone else to verify it.That’s why the LHC at CERN has two separate detector experiments - any new unexplained physics had better show up in both of them.