Question

put those that are permable on one side and impermeable on the other

1. urea
2. carbon dioxide
3. oxygen molecules
4. proteins
5. small polar molecules
6. ions
7. phosphates
8. large polar molecules

Answer 1

Certainly! Here is the separation of the substances you provided into permeable and impermeable categories:

**Permeable (can pass through a membrane)**:
1. Urea
2. Carbon dioxide
3. Oxygen molecules
4. Small polar molecules (e.g., water, ethanol)

**Impermeable (cannot easily pass through a membrane)**:
1. Proteins
2. Ions
3. Phosphates
4. Large polar molecules

Note that permeability can depend on the specific membrane and conditions, but this classification is generally applicable in biological contexts, such as cell membranes.