Describe active transport as the movement of substances from a more dilute solution to a more concentrated solution, actively working against a concentration gradient.
Understand that active transport fundamentally requires energy released from cellular respiration.
Explain the importance of active transport in plants, specifically allowing root hairs to absorb essential mineral ions from very dilute soil solutions for healthy growth.
Explain the critical role of active transport in human digestion, enabling the absorption of sugar molecules from lower concentrations in the gut into the higher sugar concentration of the blood for use in cellular respiration.
Compare, contrast, and explain the differences between the processes of diffusion, osmosis, and active transport in moving substances into and out of cells.