What is the function of the a transport protein?

Transport proteins act as doors to the cell, helping certain molecules pass back and forth across the plasma membrane, which surrounds every living cell. In passive transport molecules move from an area of high concentration to an area of low concentration.

Explanation:

The mixture has the intended volume and has the intended percent of butterfat.

Step-by-step explanation:

Point K is on line b, so it represents a scenario where the mixture has a volume of 500ml, start text, m, L, end text. Point K is on line a, so it represents a scenario where the mixture has 12, percent butterfat.So that would be the answer period