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Questions and Answers
What is the primary reason for the increased reaction rate of lactase + lactose compared to lactose alone?
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?
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?
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?
Why is glucose converted to ATP more efficiently than lactose?
What does the term 'cellular respiration rate' refer to in the context of the sugars tested?
What does the term 'cellular respiration rate' refer to in the context of the sugars tested?
Flashcards
Respiration Rate
Respiration Rate
The speed at which a cell breaks down sugar to produce energy (ATP).
Lactose Breakdown
Lactose Breakdown
The process of breaking down lactose (milk sugar) into simpler sugars using the enzyme lactase.
Cellular Respiration Rate
Cellular Respiration Rate
The overall rate of energy production in a cell, measured by how quickly sugar is broken down.
Glucose vs. Lactose
Glucose vs. Lactose
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Effect of Lactase on Respiration
Effect of Lactase on Respiration
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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.
