The figure shows photomicrographs of alveoli from 1 a non-smoker ( 200) and 2 a smoker (

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The figure shows photomicrographs of alveoli from 1 a non-smoker (× 200) and 2 a smoker (× 50).

a. Use the photomicrographs to describe how the lungs of this smoker diff er from the lungs of the non-smoker.

b. Smokers whose lungs contain alveoli similar to those shown in photomicrograph 2 have poor health.

i. Describe the symptoms that these people may have.

ii. Explain how the structure of the lungs is responsible for this poor health.

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Cambridge International AS And A Level Biology

ISBN: 9781107636828

4th Edition

Authors: Mary Jones, Richard Fosbery, Jennifer Gregory, Dennis Taylor

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Question Posted: Sep 01, 2021 02:01 AM

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The figure shows photomicrographs of alveoli from 1 a non-smoker ( 200) and 2 a smoker (

Question:

1

Step by Step Answer:

a lungs of a smoker 1Because of the tar breathed a smokers lungs appear black and mottled 2Due to ineffective healing mechanisms the alveolar epithelial layer is thin b lungs of a nonsmoker 1There is ...View the full answer

Cambridge International AS And A Level Biology

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