Industrial Bacteria Growth Temperature Quiz

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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?

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?

Remains constant

Fluctuates randomly

Increases and then levels off (correct)

Decreases continuously

What is the significance of supplies of more oxygen during muscle contraction?

Enhanced respiration rates Signup and view all the answers

How does the increased release of energy during muscle contraction impact muscle function?

Enhances muscle contraction Signup and view all the answers

What is decreased by 60% in the given treatment?

Amount of dead pathogens Signup and view all the answers

Which of the following is true about antibiotics based on the text?

Antibiotics are always used to completion Signup and view all the answers

What is one reason antibiotics may not kill certain bacteria?

Bacteria are resistant Signup and view all the answers

Which disease type is mentioned as not caused by bacteria or treatable with antibiotics?

'Lifestyle' diseases Signup and view all the answers

At what temperature do pathogens grow faster?

$12^ ext{o}C$ Signup and view all the answers

What temperature is most suitable for growing bacteria in industrial conditions?

40 °C Signup and view all the answers

What is the advantage of using a higher temperature for growing bacteria?

Increased enzyme activity Signup and view all the answers

What does 'anaerobic' mean in the context of lactic acid production during respiration?

Without oxygen Signup and view all the answers

Based on Figure 1, how can you tell that the athlete respired anaerobically during the run?

Increase in lactic acid concentration Signup and view all the answers

For how many minutes did the athlete run based on the data provided?

60 minutes Signup and view all the answers

What is the purpose of the MMR vaccine?

Protect against viral infections Signup and view all the answers

At what ages are MMR vaccinations typically given?

1 year and 4 years Signup and view all the answers

How effective are the MMR vaccinations in protecting against measles?

90% effective Signup and view all the answers

What type of disease is measles?

Viral infection Signup and view all the answers

Apart from measles, which two diseases does the MMR vaccine protect against?

Mumps and Rubella Signup and view all the answers

Why is a change in blood flow to an athlete's muscles important for running?

To improve muscle performance Signup and view all the answers

What is the effect of salt concentration on the percentage of open stomata?

The percentage of open stomata decreases as salt concentration increases. Signup and view all the answers

What is the correct range of mean salt concentration in guard cells?

0.3 - 0.4 mol/dm^3 Signup and view all the answers

If the answer to a calculation involving π × 0.18752 is 36, how many marks would be scored?

3 marks Signup and view all the answers

What effect do potassium ions have on the solution inside guard cells?

They decrease the concentration of the solution. Signup and view all the answers

How does water enter the guard cell?

By osmosis Signup and view all the answers

Why does a guard cell swell unevenly leading to stoma opening?

As the inner wall is less flexible than the outer wall Signup and view all the answers