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
rusak2 [61]
3 years ago
7

Which statements accurately reflect the permeability of the cell membrane? Choose all that apply. The hydrophilic part of the ce

ll membrane is A, the phosphate head. The lipid tails are hydrophobic and will only allow molecules which are small and polar to pass through. Molecules that are large or charged must use a channel protein, such as D, to cross the cell membrane. Molecules using membrane proteins, such as E, for transport require energy. Charged molecules, such as K+ or Ca++ are unable to pass through the lipid bilayer because of their charge and must use a membrane protein to cross the cell membrane. C, the lipid tails, are hydrophobic and repel water.
Biology
1 answer:
Nostrana [21]3 years ago
6 0

Explanation:

  • The hydrophilic part of the cell membrane is A, the phosphate head.
  • Molecules that are large or charged must use a channel protein, such as D, to cross the cell membrane.
  • Molecules using membrane proteins, such as E, for transport require energy.
  • Charged molecules, such as K+ or Ca++ are unable to pass through the lipid bilayer because of their charge and must use a membrane protein to cross the cell membrane. C, the lipid tails, are hydrophobic and repel water.

Further Explanation:

Arranged in a phospholipid bilayer, the cell membrane is semi-permeable; allowing entry into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds. The hydrophilic heads of the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing small molecules of water and hydrophilic uncharged molecules to move across the membrane along the concentration gradient.

Transport proteins spanning the plasma membrane facilitate the movement of ions and other complex, polar molecules which are typically prevented from moving across the membrane.

There are two types:

  • Carrier proteins bind specifically bind to molecules and move them down concentration gradients. Along with using facilitated diffusion, carrier proteins also use energy in the form of ATP and modifiy solute-specific regions, that aid in regulating ion exchange (K+ and Ca2+), through the hydrophobic layer of the plasma membrane.
  • Channel proteins which are pores filled with water versus enabling charged molecules to diffuse across the membrane, from regions of high concentration to regions of lower concentration. This is a passive part of facilitated diffusion.

Learn more about cellular life at brainly.com/question/11259903

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

You might be interested in
Describe how pangaea and continental drift are related
MrRa [10]
Pillow Talkin by Lil Dicky explains it all
3 0
3 years ago
Oswald Avery helped build our understanding of genetics by showing that:
ivanzaharov [21]
B is the correct answer
3 0
2 years ago
What are some ways humans are abiotic organisms
Kitty [74]

Answer:

Abiotic factors play a large role in determining the types and traits of organisms that inhabit a given ecosystem. For example, air temperature, soil pH and type, the availability of fresh water, and the amount of sunlight all interact to influence what types of vegetation can thrive in a terrestrial habitat.

Explanation:

mark me brainliest!!

4 0
2 years ago
Read 2 more answers
Which is not a physical change in the digestive system?
bulgar [2K]

Answer:

C

Explanation:

it is chemical, not physical

6 0
2 years ago
Which reproductive cycle allows viruses to use the host cell to make copies of the virus check all that apply
lys-0071 [83]
Your answer is B.
The Lytic Cycle.
7 0
3 years ago
Other questions:
  • A type of blood cell that can kill cancer cells is called (<br> a. ________.
    15·1 answer
  • Do humans perceive temperature or heat-flux? (or both?)
    12·1 answer
  • Kangaroos that nurse their young in a pouch are what type of mammal?
    8·1 answer
  • 7. Potential energy is stored in ____________ __________.
    9·1 answer
  • When a____ air mass moves toward a warmer air mass, it causes a cold front. The ____ air rises, leaving ____ temperatures in the
    14·2 answers
  • According to Darwin’s theory of natural selection, individuals who survive are the ones best adapted for their environment. Thei
    13·2 answers
  • What process takes place inside chloroplasts
    10·1 answer
  • Name the newly and recent discovered ocean? comment​
    5·2 answers
  • :-) :-) :-) :-) :-) :-) :-) :-) :-)
    7·1 answer
  • Help i think this should b easy for yall ahah
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!