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Calculate the percentage decrease in glucose concentration between location P and location Q - Edexcel - GCSE Biology - Question 2 - 2016 - Paper 1

Question 2

Calculate the percentage decrease in glucose concentration between location P and location Q. Location P has a glucose concentration of 170 mg/100 cm³. Location Q h... show full transcript

Worked Solution & Example Answer:Calculate the percentage decrease in glucose concentration between location P and location Q - Edexcel - GCSE Biology - Question 2 - 2016 - Paper 1

Step 1

Calculate the decrease in glucose concentration

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Answer

To find the decrease in glucose concentration, subtract the glucose concentration at location Q from that at location P:

$ext{Decrease} = P - Q = 170 ext{ mg/100 cm}^3 - 80 ext{ mg/100 cm}^3 = 90 ext{ mg/100 cm}^3$

Step 2

Calculate the percentage decrease

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Answer

The percentage decrease can be calculated using the formula:

$ext{Percentage Decrease} = rac{ ext{Decrease}}{ ext{Original Value}} imes 100$

Here, the original value is the glucose concentration at location P:

$ext{Percentage Decrease} = rac{90}{170} imes 100 \\ = 52.94\%$

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