![subject](/tpl/images/cats/ap.png)
Advanced Placement (AP), 07.12.2020 23:50 gsbsjshzn
The diagram is a model of one way that materials move across the cell membrane. Oxygen molecules are represented by two red circles. Carbon dioxide molecules are represented by a gray circle with two red circles attached. The left-hand side of the diagram shows the beginning concentrations of the two types of molecules. The right-hand side shows how the molecules have moved over time.
A. They move to an area with a lower oxygen concentration.
B. They become transport proteins in the cell membrane.
C. They merge with the cell membrane to form vacuoles.
D. They move to an area with a higher oxygen concentration.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Advanced Placement (AP)
![question](/tpl/images/cats/ap.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 22.06.2019 21:00
This was a series of articles written to persuade new york to ratify the constitution.
Answers: 2
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 23.06.2019 14:00
How do earth’s systems interact with each other?
Answers: 1
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 25.06.2019 06:00
Why did the strike at the pullman plant in chicago become a nationwide strike?
Answers: 1
You know the right answer?
The diagram is a model of one way that materials move across the cell membrane. Oxygen molecules are...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 06.05.2020 02:42
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42
![question](/tpl/images/cats/es.png)
Spanish, 06.05.2020 02:42
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 06.05.2020 02:42
![question](/tpl/images/cats/en.png)
English, 06.05.2020 02:42
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 02:42