Activity 3: Examining the Possible Role of Osmosis in Cystic Fibrosis 1. The mov

Question

Activity 3: Examining the Possible Role of Osmosis in Cystic Fibrosis 1. The movement of a (usually water) from an area of concentration to an area of concentration through a membrane is called osmosis. One possible hypothesis explaining the cause of cystic fibrosis involves a defective protein in the plasma membrane. As a result of this defective protein, chloride ions are unable to leave the epithelial cells of the respiratory and digestive tracts and water movesthe cell by osmosis. How does this movement of water affect the mucus on the surface of the epithelial cells? 2. Activity 4: Identifying the Stages of the Cell Cycle 1. Identify the stages of mitosis represented by each of the following photomicrographs. LM (1600x) LM (1600x) LM (1 LM (1600x)

Explanation / Answer

1) The movement of a solvent (usually water) from high cconcentration to low concentration through a plasma membrane is called osmosis.

2) Water moves out the cell by osmosis.

This movement of water outside the cell dehydrated mucus membrane,it obstructs airways and becomes prone for bacterial and fungal infections

3) image 1 = anaphase stage

Image 2 = metaphase stage

Image 3 = prophase stage

Image 4 = telophase stage

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.