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To prevent excessive pH changes during experiments with isolated muscle, buffers such as HEPES or phosphate buffers are often used to maintain a stable pH. These buffers help resist changes in pH by absorbing excess hydrogen ions or hydroxide ions. Additionally, the temperature of the solution is carefully controlled as temperature can affect the dissociation constants of the buffering agents and impact pH stability. Regular monitoring and adjustment of the pH levels throughout the experiment are also crucial to ensure accurate and reliable results.

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5mo ago

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The factor that a scientist changes in a controlled experiment is the what?

manipulated variable


What is an artificial situation in which a scientist deliberately makes certain changes in the world about him so that he can observe the consequences?

An artificial situation created by a scientist to observe the consequences of specific changes is called an experiment. In an experiment, the scientist manipulates variables to test hypotheses and determine the impact of those changes under controlled conditions. This method allows for the identification of cause-and-effect relationships in the natural world.


Factor in an experiment that results from or depends on changes to the independent variable?

In an experiment, a factor that results from changes to the independent variable is the dependent variable. The dependent variable is what researchers measure and observe to determine the effects of manipulating the independent variable. It is the outcome or response that is influenced by the changes in the independent variable.


What is the difference between control and experimental variables?

Control variables are kept constant throughout an experiment to ensure that any changes in the dependent variable are due to the manipulation of the independent variable. Experimental variables, on the other hand, are the factors that are deliberately changed by the researcher to observe their effect on the dependent variable.


What is the systemic changes?

Systemic changes refer to changes made across an entire system rather than focusing on isolated parts. These changes aim to address root causes of issues rather than just treating symptoms, with the goal of creating lasting and widespread impact. They often involve changing policies, practices, and behaviors at multiple levels within a system.