Podcast
Questions and Answers
What happens when there is not enough oxygen available during muscle contraction?
What happens when there is not enough oxygen available during muscle contraction?
- Decreased energy release
- Increased glucose production
- Increased lactic acid production (correct)
- Decreased lactic acid production
What effect does the increase in lactic acid have at the end of exercise?
What effect does the increase in lactic acid have at the end of exercise?
- Decreased glucose levels
- High lactic acid levels (correct)
- Low lactic acid levels
- Increased oxygen levels
What does the graph show about the rate of respiration initially?
What does the graph show about the rate of respiration initially?
- Remains constant
- Fluctuates randomly
- Increases and then levels off (correct)
- Decreases continuously
What is the significance of supplies of more oxygen during muscle contraction?
What is the significance of supplies of more oxygen during muscle contraction?
How does the increased release of energy during muscle contraction impact muscle function?
How does the increased release of energy during muscle contraction impact muscle function?
What is decreased by 60% in the given treatment?
What is decreased by 60% in the given treatment?
Which of the following is true about antibiotics based on the text?
Which of the following is true about antibiotics based on the text?
What is one reason antibiotics may not kill certain bacteria?
What is one reason antibiotics may not kill certain bacteria?
Which disease type is mentioned as not caused by bacteria or treatable with antibiotics?
Which disease type is mentioned as not caused by bacteria or treatable with antibiotics?
At what temperature do pathogens grow faster?
At what temperature do pathogens grow faster?
What temperature is most suitable for growing bacteria in industrial conditions?
What temperature is most suitable for growing bacteria in industrial conditions?
What is the advantage of using a higher temperature for growing bacteria?
What is the advantage of using a higher temperature for growing bacteria?
What does 'anaerobic' mean in the context of lactic acid production during respiration?
What does 'anaerobic' mean in the context of lactic acid production during respiration?
Based on Figure 1, how can you tell that the athlete respired anaerobically during the run?
Based on Figure 1, how can you tell that the athlete respired anaerobically during the run?
For how many minutes did the athlete run based on the data provided?
For how many minutes did the athlete run based on the data provided?
What is the purpose of the MMR vaccine?
What is the purpose of the MMR vaccine?
At what ages are MMR vaccinations typically given?
At what ages are MMR vaccinations typically given?
How effective are the MMR vaccinations in protecting against measles?
How effective are the MMR vaccinations in protecting against measles?
What type of disease is measles?
What type of disease is measles?
Apart from measles, which two diseases does the MMR vaccine protect against?
Apart from measles, which two diseases does the MMR vaccine protect against?
Why is a change in blood flow to an athlete's muscles important for running?
Why is a change in blood flow to an athlete's muscles important for running?
What is the effect of salt concentration on the percentage of open stomata?
What is the effect of salt concentration on the percentage of open stomata?
What is the correct range of mean salt concentration in guard cells?
What is the correct range of mean salt concentration in guard cells?
If the answer to a calculation involving π × 0.18752 is 36, how many marks would be scored?
If the answer to a calculation involving π × 0.18752 is 36, how many marks would be scored?
What effect do potassium ions have on the solution inside guard cells?
What effect do potassium ions have on the solution inside guard cells?
How does water enter the guard cell?
How does water enter the guard cell?
Why does a guard cell swell unevenly leading to stoma opening?
Why does a guard cell swell unevenly leading to stoma opening?
