jnLonhgonocolewis
jnLonhgonocolewis jnLonhgonocolewis
  • 10-10-2015
  • Biology
contestada

When does the cell have to use active transport ?

Respuesta :

haneul
haneul haneul
  • 10-10-2015
The cell has to use active transport when it's trying to transport material against the concentration gradient. (from low to high concentration) Or, if a molecule is too big to diffuse through the cell membrane, it must be moved through using a carrier protein.
Hope that helped you.
Answer Link

Otras preguntas

imagine you wanted to convince an uninformed person to take a political position that is the same as yours. What issue would you try to talk to this person abou
Show that the equation represents a circle by rewriting it in standard form, and find the center and radius of the circle. x2 + y2 + x = 0 standard form
What is the sides length
5−16(−x+7)=1+3(2−4x) What is the value of x?
14) A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? (Round to the nearest tenth.) [4 points]
STUDYING FOSSILS GIVES SCIENTIST CLUES FOR ALL OF THE FOLLOWING BESIDES WHAT
Papua New Guinea’s economy is based largely on _____.
7 and 1/2 divided by 1 and 1/4 help plzzzzz
Please help I am confused and it is due tomorrow!
Charismatic leaders are often _____ than transactional leaders.