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Figure 2 shows alveoli from a healthy lung - Edexcel - GCSE Biology Combined Science - Question 2 - 2018 - Paper 1

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Figure 2 shows alveoli from a healthy lung. Smoking can cause a condition called emphysema. Figure 3 shows alveoli from a person with emphysema. Use words from th... show full transcript

Worked Solution & Example Answer:Figure 2 shows alveoli from a healthy lung - Edexcel - GCSE Biology Combined Science - Question 2 - 2018 - Paper 1

Step 1

The alveoli from the person with emphysema have a ________________ surface area than the alveoli from a healthy lung.

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Answer

smaller

Step 2

The surface area of the alveoli will affect how much oxygen moves into the blood by the process of ________________.

99%

104 rated

Answer

diffusion

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