cieancheleeselio cieancheleeselio
  • 23-11-2015
  • Biology
contestada

When does the cell have to use active transport?

Respuesta :

leo22
leo22 leo22
  • 23-11-2015
When it needs to move molecules across the membrane against a gradient.
Answer Link

Otras preguntas

how many times does 3 go into 31
What type of heat transfer is used in a restaurant that uses ovens with fans inside?
Using the periodic table, determine which material is most likely to be a good insulator. magnesium silver aluminum sulfur
This term means of or from the people. a. democracy c. grass-roots b. republic d. boot-straps
.51 as a fraction in simplest form
taylor cuts 1/5 sheet of construction paper for an arts and craft project.write 1/5 as an equivalent fraction with the denominators shown
How much money does the founder of Google make a year?
Who explored North America and the Arctic? Henry Hudson James Cook Robert de La Salle Samuel de Champlain
The greenhouse effect A. is caused by pollution released into the atmosphere B. does not occur naturally C. is a naturally occurring process D. needs to
Many who have attempted to climb Mount Everest have sacrificed their most valuable possession to the mountain their lives. Which punctuation mark should be plac