Question

if 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.
image of a micelle with labels hydrophilic head and hydrophobic tail
explain why phospholipids dropped in water form a micelle. complete the paragraph.
the phospholipid heads face dropdown the water because they are dropdown.
the phospholipid tails face dropdown the water because they are dropdown.

Explanation:

1. Phospholipid heads are hydrophilic (water - attracting) due to their polar nature, so they orient toward water.
2. Phospholipid tails are hydrophobic (water - repelling) due to their non - polar nature, so they orient away from water. This arrangement minimizes repulsion between tails and water, forming a micelle.

Answer:

The phospholipid heads face \(\boldsymbol{\text{toward}}\) the water because they are \(\boldsymbol{\text{hydrophilic}}\).
The phospholipid tails face \(\boldsymbol{\text{away from}}\) the water because they are \(\boldsymbol{\text{hydrophobic}}\).