Experimental Design in Yeast Respiration

Easy Research Summaries Experimental Design

A group of scientists is examining how varying concentrations of a sugar solution influence the rate of cellular respiration in yeast cells. In their experiment, they prepared five different solutions with concentrations of 0%, 5%, 10%, 15%, and 20%. The yeast was then added to each solution, and the scientists measured the rate of carbon dioxide production over a 30-minute period. They recorded the average rate of carbon dioxide produced as the main data point.

Based on this experimental design, which of the following statements best identifies a key element of the experimental setup?

Only one type of yeast was used throughout the experiment.

The experiment tested five different temperatures.

Carbon dioxide was produced by the solutions themselves.

Several types of sugar were used to examine their effects.

Hint

Submitted5.6K

Correct5.1K

% Correct91%