Podcast
Questions and Answers
How can the 'rate of respiration' be determined using methylene blue?
How can the 'rate of respiration' be determined using methylene blue?
- By measuring the amount of methylene blue used
- By measuring the temperature of the solution
- By measuring the time taken for the colour to change (correct)
- By measuring the intensity of the colour change
What is the main use of the energy released during respiration in the human body?
What is the main use of the energy released during respiration in the human body?
- To fuel digestion processes
- To maintain body temperature
- To fuel muscle contraction and nerve impulse transmission (correct)
- To fuel the circulatory system
What would the graph of temperature against 'time for colour change' look like compared to the graph of 'rate of respiration' against 'time for colour change'?
What would the graph of temperature against 'time for colour change' look like compared to the graph of 'rate of respiration' against 'time for colour change'?
- The graph of temperature would look the same but with a different scale
- The two graphs would look identical
- The graph of temperature would be completely different (correct)
- The two graphs cannot be compared
What is the term for the process that converts the energy stored in organic compounds into a usable form for the body?
What is the term for the process that converts the energy stored in organic compounds into a usable form for the body?
Which of the following processes does NOT use energy released during respiration?
Which of the following processes does NOT use energy released during respiration?
The energy released during respiration is not utilized in any processes in the human body.
The energy released during respiration is not utilized in any processes in the human body.
Methylene blue can be used to determine the rate of photosynthesis in plants.
Methylene blue can be used to determine the rate of photosynthesis in plants.
A graph of temperature against 'time for colour change' will look the same as the graph used to plot 'rate of respiration' against 'time for colour change.'
A graph of temperature against 'time for colour change' will look the same as the graph used to plot 'rate of respiration' against 'time for colour change.'
The energy released during respiration is only utilized for a single process in the human body.
The energy released during respiration is only utilized for a single process in the human body.
The 'rate of respiration' can be directly determined by observing the color change of methylene blue over time.
The 'rate of respiration' can be directly determined by observing the color change of methylene blue over time.
Study Notes
Energy and Respiration
- Energy released during respiration is used to fuel many processes in the human body.
Measuring Respiration Rate
- Time taken for methylene blue to change colour can be converted into 'rate of respiration'.
- The rate of respiration can be plotted on a graph.
- A graph of temperature against 'time for colour change' will have a different shape than the graph of rate of respiration.
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Description
Test your knowledge on the measurement of respiration rate in humans using methylene blue. Learn how the energy released during respiration fuels various processes in the human body. Understand the process of converting time for colour change into 'rate of respiration' and analyzing the results through graph plotting.
