Active Transport Diffusion Rate Graph Characteristics

What does the active transport diffusion rate graph look like?

a) Linear increase
b) Exponential decrease
c) Sigmoidal curve
d) Step-wise pattern

Answer:

The active transport diffusion rate graph is characterized by a sigmoidal curve.

Explanation:

The active transport diffusion rate graph is characterized by a sigmoidal curve (c). Active transport is a process that moves molecules or ions across a cell membrane against their concentration gradient, requiring energy from ATP. The graph of active transport diffusion rate shows an initial slow increase as the concentration gradient is established, followed by a rapid uptake phase, and finally, a plateau phase when the transporters are saturated.