Okay, now I see the right side of the diagram clearly. This section shows red molecules being moved from "Inside of cell" to "Outside of cell" using a "Transport protein." Crucially, there's a large "Energy" symbol indicating that this process requires energy input. The molecules are moving against their concentration gradient, as there are more red dots inside the cell than outside. This is the classic definition of active transport. Therefore, the blank box at the top for this entire section should be filled with "Active". Now I have all the information needed to complete the boxes and describe the concentrations.
Then, review the findings:
Based on my analysis of both sides of the diagram, I can now confidently fill in all the blanks and describe the concentration gradients.
The completed diagram should read:
- The top-left box is
Passive Transport.
- The two sub-types under Passive Transport are
Simple diffusion and
Facilitated diffusion.
- The top-right box is
Active Transport.
For the concentration descriptions:
- In
Simple diffusion (blue dots), the concentration is
high outside the cell and
low inside the cell.
- In
Facilitated diffusion (green sugar), the concentration is also
high outside the cell and
low inside the cell.
- In
Active transport (red dots), the concentration is
low outside the cell and
high inside the cell, meaning the molecules are being pumped *against* the gradient.
This completes the task of filling in the boxes and describing the concentration gradients for each substance.
Parent Tip: Review the logic above to help your child master the concept of the cell in its environment worksheet answers.
