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Unit 1 Lesson 5 Vocabulary
1.
Homeostasis: the maintenance of a constant state in a changing environment. (working to stay the same even though
the environment is trying to change you)
2. Permeable: anything can pass through
3. Semi-permeable: allowing only some things to pass through
4. Passive transport: movement of particles across the cell membrane without using the cell’s energy
5. Concentration: the number of molecules of a substance in a specific volume (the number of molecules in a specific
area).
6. Diffusion: movement of molecules from an area of high concentration to an area of lower concentration
7. Osmosis: diffusion of water through a semi-permeable membrane. Type of passive transport
8. Active transport: using the cell’s energy to move particles from an area of lower concentration to an area of higher
concentration (against a concentration gradient)
9. Endocytosis: process using the cell’s energy where a cell membrane surrounds a particle and encloses the particle in a
vesicle to bring the particle into the cell
10. Exocytosis: process using the cell’s energy where the cell releases a particle by enclosing it in a vesicle that then
moves to the cell’s surface and fuses with the cell membrane
Unit 1 Lesson 5 Vocabulary
1.
Homeostasis: the maintenance of a constant state in a changing environment. (working to stay the same even though
the environment is trying to change you)
2. Permeable: anything can pass through
3. Semi-permeable: allowing only some things to pass through
4. Passive transport: movement of particles across the cell membrane without using the cell’s energy
5. Concentration: the number of molecules of a substance in a specific volume (the number of molecules in a specific
area).
6. Diffusion: movement of molecules from an area of high concentration to an area of lower concentration
7. Osmosis: diffusion of water through a semi-permeable membrane. Type of passive transport
8. Active transport: using the cell’s energy to move particles from an area of lower concentration to an area of higher
concentration (against a concentration gradient)
9. Endocytosis: process using the cell’s energy where a cell membrane surrounds a particle and encloses the particle in a
vesicle to bring the particle into the cell
10. Exocytosis: process using the cell’s energy where the cell releases a particle by enclosing it in a vesicle that then
moves to the cell’s surface and fuses with the cell membrane
Unit 1 Lesson 5 Vocabulary
1.
Homeostasis: the maintenance of a constant state in a changing environment. (working to stay the same even though
the environment is trying to change you)
2. Permeable: anything can pass through
3. Semi-permeable: allowing only some things to pass through
4. Passive transport: movement of particles across the cell membrane without using the cell’s energy
5. Concentration: the number of molecules of a substance in a specific volume (the number of molecules in a specific
area).
6. Diffusion: movement of molecules from an area of high concentration to an area of lower concentration
7. Osmosis: diffusion of water through a semi-permeable membrane. Type of passive transport
8. Active transport: using the cell’s energy to move particles from an area of lower concentration to an area of higher
concentration (against a concentration gradient)
9. Endocytosis: process using the cell’s energy where a cell membrane surrounds a particle and encloses the particle in a
vesicle to bring the particle into the cell
10. Exocytosis: process using the cell’s energy where the cell releases a particle by enclosing it in a vesicle that then
moves to the cell’s surface and fuses with the cell membrane