Unit 3: Cell Transport & Cellular Processes

Molecular movement through the cell membrane against

the concentration gradient using ATP.

• Active Transport

• Passive Transport

• Diffusion

• Facilitated Diffusion

Normal random movement of molecules due to diffusion from high to low concentration.

• Active Gradient

• Concentration Gradient

• Facilitated Gradient

• Transportation

Active Transport of molecules (often waste products)

out of a cell using ATP.

• Exocytosis

• Endocytosis

• Passive Transport

• Facilitated Diffusion

Diffusion (passive transport) of molecules using

protein channels (tunnels) through the cell membrane without using energy.

• Active Transport

• Endocytosis

• Exocytosis

• Facilitated Diffusion

Steady state: The maintenance of a balanced, safe, internal environment inside of a cell, regulated by the cell membrane.

• Cellular Metabolism

• Homeostasis

• Active Transport

• Facilitate Diffusion

Tags

NGSS.HS-LS1-3

Higher concentration of solute (usually salt or sugar) outside a cell than inside a cell so that water moves out of the cell causing it to implode or be crushed.

• Hypertonic Solution

• Homeostatic Solution

• Hypotonic Solution

• Endocytosis

Tags

NGSS.HS-LS1-3

Lower concentration of solute (usually salt or sugar) outside a cell than inside a cell so that water moves into the cell causing it to swell or explode.

• Hypertonic Solution

• Hypotonic Solution

• Isotonic Solution

• Homeostatic Solution

Tags

NGSS.HS-LS1-3

Concentrations inside and outside the cell are relatively equal with no concentration gradient.

• Hypertonic Solution

• Hypotonic Solution

• Isotonic Solution

• Active Transport

The molecule used directly by cells for energy

in cellular processes.

• ATP

• Mitochondria

• Protein

• Glycoprotein

Tags

NGSS.HS-LS1-7

Diffusion of water through a semi-permeable membrane with the concentration gradient.

• Protein Synthesis

• Metabolism

• Active Transport

• Osmosis