Benedict's Reagent Is a Chemical That Is Used as a Test

question 57

Multiple Choice

Benedict's reagent is a chemical that is used as a test for the presence of a free aldehyde functional group on glucose.The aldehyde is used when glucose and fructose bind together to form sucrose, and the Benedict's test is negative.Starch contains a great deal of glucose but gives a negative Benedict's test because:

• A)all of the aldehyde groups on the starch are oxidized and cannot react with the Benedict's reagent.
• B)glucose in starch has lost a carbon atom and cannot react with Benedict's reagent.
• C)only the glucose at the end of a chain of starch will have an exposed aldehyde functional group to react with Benedict's reagent.
• D)starch is not soluble in water and cannot react with Benedict's reagent.

Understand how to effectively measure and interpret cardiorespiratory fitness and performance.

Understand the energy systems used for different intensity levels of physical activity.

Recognize the role of ATP in muscle contraction and energy provision.

Comprehend the basics of glycolysis and the anaerobic nature of ATP production.

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