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Respiration Rate of Sugars Study

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Questions and Answers

What is the primary reason for the increased reaction rate of lactase + lactose compared to lactose alone?

The concentration of lactose decreases during the reaction.

Lactase increases the temperature of the reaction.

Lactase is a more efficient sugar than glucose.

Lactase breaks down lactose into simpler sugars. (correct)

Which sugar showed the fastest conversion to ATP in the provided data?

Fructose

Sucrose

Glucose (correct)

Lactose

What does the graph indicate about the respiration rate of different sugars over ten minute intervals?

All sugars are processed at the same rate.

There is significant variability in reaction rates among the sugars. (correct)

Lactose is consistently more efficient than glucose.

Sugars do not affect the respiration rate at all.

Why is glucose converted to ATP more efficiently than lactose?

<p>Glucose is a simple sugar that requires fewer steps for ATP production.</p> Signup and view all the answers

What does the term 'cellular respiration rate' refer to in the context of the sugars tested?

<p>The rate at which ATP is produced from those sugars.</p> Signup and view all the answers

Study Notes

Respiration Rate of Different Sugars

Figure 1 graph displays respiration rates of glucose, sucrose, lactose, and lactose + lactase over ten-minute intervals. Data points are averaged.
Significant differences exist in reaction rates between sugars.
Lactose and lactose + lactase show slower respiration rates than glucose and sucrose.
The lactase enzyme breaks down lactose molecules into simpler sugars, converting them to ATP more rapidly than other sugars.
Glucose's rapid conversion efficiency to ATP is due to its simple sugar structure.

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Description

This quiz examines the respiration rates of different sugars, including glucose, sucrose, and lactose, over a ten-minute interval. It highlights the significant differences in reaction rates and the role of the lactase enzyme in breaking down lactose. Test your understanding of anaerobic respiration and enzyme activity in sugar metabolism.