Question

phospholipids are dropped in water, they can form a ball - shaped structure called a micelle. the model shows the cross section of a micelle formed by phospholipids. the micelle is surrounded by water. explain why phospholipids dropped in water form a micelle. complete the paragraph. the phospholipid tails face away from the water because they are dropdown. the phospholipid dropdown face toward the water because they are dropdown with options: polar, nonpolar.

Explanation:

1. For the first blank after "because they are": Phospholipid tails are non - polar, and non - polar substances do not interact favorably with polar water molecules, so they face away from water. So we choose "nonpolar".
2. For the second dropdown (the part after "The phospholipid"): The part of the phospholipid that faces water is the hydrophilic head.
3. For the last blank: Hydrophilic heads are polar, and polar substances interact favorably with polar water molecules, so they face toward water. So we choose "polar".

Answer:

The phospholipid tails face away from the water because they are nonpolar.
The phospholipid heads face toward the water because they are polar.