![subject](/tpl/images/cats/biologiya.png)
Carbon dioxide and oxygen are molecules that can move freely across a semipermeable membrane of cells. what determines the direction that carbon dioxide and oxygen molecules move?
a. orientation of cholesterol in the plasmamembrane
b. location of receptors
c. concentration gradient across the cell membrane
d. configuration of phospholipids in the cell membrane
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 02:40
What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 07:00
Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 09:00
Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 15:50
Which individual below would be considered heterozygous? a.dd b.dd c.dd
Answers: 2
You know the right answer?
Carbon dioxide and oxygen are molecules that can move freely across a semipermeable membrane of cell...
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 01.09.2019 21:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 01.09.2019 21:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 21:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 21:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.09.2019 21:10
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.09.2019 21:10
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.09.2019 21:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 21:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.09.2019 21:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 21:10
![question](/tpl/images/cats/himiya.png)
Chemistry, 01.09.2019 21:10