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Valentin [98]
4 years ago
12

In _____, the alveolar walls break down, adjacent alveoli fuse, and the lungs lose their elasticity.

Biology
1 answer:
Molodets [167]4 years ago
3 0
In Emphysema, one form of chronic obstructive pulmonary disease (COPD), alveolar walls breakdown, alveoli fuse creating more open spaces, and the lungs lose their elasticity. The result is "trapped air" which becomes difficult to expel upon expiration, thus an expiratory condition.
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The correct answer is "5-1-3-2-4".

Explanation:

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1) A combination of cholesterol and apolipoprotein binds to LDL receptors and becomes internalized as endocytotic vesicles. Once the receptors are in the proper cell membrane region, cholesterol and apolipoprotein are bound and internalized.

3) Several endocytotic vesicles fuse to form an endosome.

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4) The LDL particle is degraded by the lysosome. This takes place after endocytosis, when LDL particles are transported into lysosomes once they are fused, cleaving the cholesterol esters into cholesterol and fatty acids.

6 0
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lana [24]

Answer:

D. They both decrease genetic variation.

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6 0
3 years ago
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