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
IrinaVladis [17]
3 years ago
9

When the facilitated diffusion necessary

Biology
2 answers:
Vlad1618 [11]3 years ago
8 0

Answer:

When the molecules size are large, and they are insoluble in lipids, at this time facilitated diffusion is necessary to transport such molecules across the plasma membrane.

Explanation:

Facilitated diffusion is one type of passive transport. It occurs from higher concentration to lower concentration. This diffusion depends on the size of the particle, the solubility of the membrane. The smaller size particles can move faster across the membrane but the bigger particles can't pass the plasma membrane. Another fact is the entire plasma membrane is made up of lipids. It can't allow the lipid insoluble particles to the membrane. For this, there is a special facility to carry such polar molecules like water, such as channels, carrier proteins, porins. These channels facilitate the bigger polar molecules to enter into the membrane and cross the membrane. The enzymes like permease act as channel proteins that bind with the bigger particles and carry them through the channels. This type of diffusion also needs ATP like passive diffusion.

andrey2020 [161]3 years ago
7 0

In biology, diffusion is the movement of substances with the concentration gradient, which means they move from an area of high concentration to an area of low concentration. Facilitated diffusion is diffusion that is performed with the help of a carrier protein that can move particles of the substance.

You might be interested in
Which of the following steps is an important part of the process by which ecology guides humans to a sustainable future
Fynjy0 [20]
The answer would be "Behavior is modified as a cause"
7 0
3 years ago
In both plant and animal cells, the cell membrane...?
prohojiy [21]
Both plant and animal cells have a nucleus and mitochondria
7 0
2 years ago
Read 2 more answers
___ are categorized by structure and function; ___ are categorized by their support roles.
OlgaM077 [116]

Answer:

Neurons; glia

Explanation: i took the test!

8 0
2 years ago
Which is the most common threat to the human body from an invading virus?
Mice21 [21]
Choice C is most likely to be the right answer!
7 0
3 years ago
How are asteroids and planets similar?
Anna [14]
Yxhcjcjvjcjfjcjccjcjvjcjccjcjxjxjcjxjxjxjcjxhxjxxhjx
3 0
2 years ago
Other questions:
  • Daphnia are freshwater organisms sometimes referred to as “water fleas.” Design an experiment that
    10·2 answers
  • 10]Which of the following correctly states the relationship between hippos and whales? (1 point)
    10·1 answer
  • Why did Gregor Mendel conclude that the genes for flower and seed color in pea plants independently assorted even though both tr
    15·1 answer
  • Which organ contain lots of vessicle?​
    12·1 answer
  • Which of the following pairs of structures share the function of rewarding water into the body
    14·2 answers
  • This type of plastid contains orange pigment
    5·2 answers
  • Outer hair cells near the center of the basilar membrane will
    13·1 answer
  • I NEED AN HONEST ANSWER, PLS HELP!
    6·1 answer
  • Where do the products of photosynthesis come from? a. we exhale them b. plants c. we inhale them d. animals e. a chemical reacti
    7·1 answer
  • Ack I need help please :> its in science
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!