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
bija089 [108]
3 years ago
8

Which molecules help control movement of substances through cell membranes? A. carbohydrates B. ATP C. DNA D. proteins

Biology
2 answers:
erik [133]3 years ago
5 0

Answer:

D. proteins

Explanation:

The plasma membrane is formed mainly by lipids and proteins. Lipids act by guaranteeing the membrane structure, while proteins are related to the main functions performed by this cell structure.

The proteins present in the plasma membrane are embedded in the bilayer. These proteins may be inserted totally or only partially into the membrane. It is worth mentioning that some act as true channels for the passage of substances. That is, we can say that membrane proteins are the molecules responsible for helping to control the movement of substances across cell membranes.

krek1111 [17]3 years ago
4 0
D. Proteins help control substances by making trans-membrane channels.
You might be interested in
___________ is the attraction of water molecules to one another, while _________ is the attraction of water molecules to other p
taurus [48]
Answer B is the right answer...
5 0
3 years ago
Read 2 more answers
This is a scaffolding of protein fibers that help a cell keep its shape, and assist cell division and cell movement.
Schach [20]
The answer is tissue. Hope this helped!
6 0
3 years ago
Read 2 more answers
A trait exhibits 100% concordance for both monozygotic and dizygotic twins. what conclusion can you draw about the role of genet
Travka [436]
C. Genetic factors are unimportant
3 0
3 years ago
Explain why facilitated diffusion may need to occur and in what direction the particles diffuse in. Identify the molecules that
Goryan [66]

Answer:

Sometimes molecules cannot move through the cell membrane on their own. These molecules need special transport proteins to help them move across the membrane. Facilitated diffusion is the diffusion of substances with the help of transport proteins in the plasma membrane. These special proteins are called channel proteins or carrier proteins, and they are attached to the cell membrane. In fact, they go through the cell membrane, from the inside of the cell to the outside. Facilitated diffusion is used for molecules that cannot diffuse rapidly through cell membranes on their own, even when the molecules are moving from high to low concentration areas. An example is the sugar plants and animals use for energy, called glucose. Even though facilitated diffusion involves transport proteins, it is still passive transport because the solute is moving down the concentration gradient so it does not require the use of cellular energy.

6 0
2 years ago
Can u help me with this please
sesenic [268]
This is only explanation. What are the questions for it?
7 0
3 years ago
Other questions:
  • In a human karyotype, chromosomes are arranged in 23 pairs. If we choose one of these pairs, such as pair 14, what do the two ch
    11·1 answer
  • What species concepts is not very useful in defining plant species because some plant groups readily hybridize with other plant
    6·1 answer
  • The continents of Africa and South America used to “fit together” like puzzle pieces. About how far back in time would you have
    5·1 answer
  • What are the four nucleotide bases and what do they pair up with? pbs?
    14·1 answer
  • I can't figure out the answer
    14·1 answer
  • Why do some investigations require a control
    6·2 answers
  • This type of asexual reproduction occurs when a single celled organism divides into two organisms.
    11·2 answers
  • Briefly describe the life, successes, and failures of Emperor Justinian.
    11·1 answer
  • Roots:
    9·1 answer
  • In what parts of the body would you expect oxyhaemoglobin to be breaking down to oxygen and haemoglobin ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!