1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Masja [62]
3 years ago
12

When does the cell have to use active transport?

Biology
1 answer:
Natasha2012 [34]3 years ago
5 0
<span>When it needs to move molecules across the membrane against a gradient.</span>
You might be interested in
Identify the structures of the spinal cord
GarryVolchara [31]
<span>1.Gray Matter
2.</span>Central Canal
3.<span>Dorsal and Ventral Root
4.</span><span>Dorsal Root Ganglion

</span>

3 0
3 years ago
Read 2 more answers
Which is showing passive transport and which is active transport?
Neko [114]
Passive is when the channels don't need energy to do so and active is when they need energy
3 0
3 years ago
All mammals have a double circulatory system. Fig shows part of the human double circulatory
kenny6666 [7]
Pulamonary artery I think
4 0
3 years ago
Monosaccharides are generally defined by what to hydrogen to oxygen ratios?
Thepotemich [5.8K]
I believe it is a 2:1 ratio of hydrogen to oxygen, because the way i learned was that carbon hydrogen and oxygen have a ratio of 1:2:1, respectively.
6 0
3 years ago
2. What direction are the Newark Lowlands from the Allegheny Plateau?
Dovator [93]

Answer:

Las tierras bajas están sustentadas principalmente por rocas que se erosionan con ... Valle, pero han sido separadas por la sección Gettysburg-Newark Lowland. ... que divide la provincia de Ridge y Valley de la meseta de Allegheny. ... rocoso hacia el noroeste, en la dirección de los glaciares en retirada.

Explanation:

7 0
3 years ago
Other questions:
  • A membrane which surrounds the genetic material and nucleus in eukaryotes cells
    14·1 answer
  • [Quick][easy question]
    14·2 answers
  • How do water get from the ocean to your water faucet??
    15·1 answer
  • Why is UVA light considered a mutagen?
    15·2 answers
  • What will cause hemoglobin to more readily unload oxygen?
    12·1 answer
  • Homeostasis _____. occurs only at the cellular level is the maintenance of internal conditions is a process unique to eukaryotes
    12·2 answers
  • What are somethings people do that increase water erosion on beaches and on surface areas within continental interiors?
    15·2 answers
  • What are valence electrons?
    7·2 answers
  • which of the following questions will best direct an investigation on how to develop an antibiotic that inhibits protein synthes
    13·1 answer
  • Amino acids are used to make _____, which are responsible for escorting substances into and around the body as well as across ce
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!