3 protein bars were tested to see which of them had the highest amount of carbohydrates. Bar A has an RQ of .65, Bar B has an RQ of 9, and Bar C has an RQ of 4.5.

a. Which bar contains more carbohydrate molecules?

b. Explain how you know.

To determine which protein bar contains more carbohydrate molecules, we need to compare the Respiratory Quotient (RQ) values of the three bars. The RQ is a ratio that compares the amount of carbon dioxide produced to the amount of oxygen consumed during metabolism.

a) To identify which bar has more carbohydrate molecules, we need to look for the bar with a higher RQ value, as a higher RQ indicates more carbohydrate utilization.

b) By comparing the given RQ values of the three protein bars, we can see that:

- Bar A: RQ = 0.65,
- Bar B: RQ = 9,
- Bar C: RQ = 4.5.

From these values, we can conclude that Bar B has the highest RQ value, and therefore, it contains the most carbohydrate molecules. The higher the RQ value, the higher the proportion of carbohydrate utilization during metabolism. In this case, Bar B has an RQ of 9, which indicates a high use of carbohydrates.