2.plasma membrane

3.Selective Permeability.

4.plasma membrane

5. homeostasis

6. selective permeability

Homeostasis

(Hints in Question – “process” and “maintain”).

2. A boundary between a cell and its environment.

Plasma Membrane

(Hint in Question – “boundary”).

3. The feature of the plasma membrane that keeps some substances out.

Selective Permeability

(Hints in Question – “feature” and “keeps some substances out”).

4. Separates prokaryotic and eukaryotic cells from the watery environment in which they exist.

Plasma Membrane

(Hint in Question – “separates… cells”).

5. The quality of a plasma membrane that allows oxygen and glucose to move in.

Selective Permeability

(Hints in Question – “quality” and “move in”).

6. Maintain by the plasma membrane.

Homeostasis

(Hint in Question – “maintain”).

2. plasma membrane

3. selective permeability

4. selective permeability

5. selective permeability

6. homeostasis