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
cricket20 [7]
3 years ago
8

What does the surface area represent in a cell

Biology
2 answers:
Tresset [83]3 years ago
7 0
The size of its membrane and the cell's ability to transport materials.
Hope this helps!
finlep [7]3 years ago
4 0
The surface area is used to get substances in or out through the cell's membrane.
You might be interested in
In addition to serving as waterproof coverings or as parts of biological membranes, lipids
Gennadij [26K]
Store energy, provide metabolic fuel and help in digestion
3 0
2 years ago
Neurons, as with other excitable cells in the body, have two major physiological properties: ____________ and ____________. A ne
mars1129 [50]

Answer:

Neurons, as with other excitable cells in the body, have two major physiological properties: irritability and conductivity. A neuron has a positive charge on the outer surface of the cell membrane due in part to the action of an active transport system called the sodium potassium pump. This system moves sodium (Na+) out of the cell and potassium (K+) into the cell. The inside of the cell membrane is negative, not only due to the active transport system but also because of intracellular proteins, which remain negative due to the intracellular pH and keep the inside of the cell membrane negative.

Explanation:

Neurons are cells with the capacity to transmit information between one another and also with other tissues in the body. This information is transmitted thanks to the release of substances called <em>neurotransmitters</em>, and this transmission is possible due to the <em>electrical properties </em>of the neurons.

For the neurons (and other excitable cells, such as cardiac muscle cells) to be capable of conducting the changes in their membranes' voltages, they need to have a<em> resting membrane potential</em>, which consists of a specific voltage that is given because of the electrical nature of both the inside and the outside of the cell. <u>The inside of the cell is negatively charged, while the outside is positively charged</u> - this is what generates the resting membrane potential. When the membrane voltage changes because the inside of the cell is becoming less negative, the neuron is being excited and - if this excitation reaches a threshold - an action potential will be fired. But how does the voltage changes? This happens because the distribution of ions in the intracellular and extracellular fluids is very dissimilar and when the sodium channels in the cell membrane are opened (because of an external stimulus), sodium enters the cell rapidly to balance out the difference in this ion concentration. The sudden influx of this positively-charged ion is what makes the inside of the neuron become less negative. This event is called <em>depolarization of the membrane</em>.

6 0
3 years ago
What is the role of tRNA? what does it do?
Dahasolnce [82]

Answer:

It shutters amino acids to ribosomes. They carry amino acids to the ribosomes so that protein synthesis can occur.

6 0
3 years ago
Which of the following statements about hormone transport and distribution is not true? a. free hormone concentration is not inf
adelina 88 [10]
E . all of the statements are true hope i’m correct
4 0
3 years ago
Answer the correct answers to this assignment.
Rufina [12.5K]
First one is 100% HH
8 0
2 years ago
Read 2 more answers
Other questions:
  • What is the term for an evolutionary change in one species that results in the evolutionary change of another species?
    12·1 answer
  • PLS HELP
    6·1 answer
  • True or false: Through the power of Tradition and the Magisterium, the Church can contradict the teachings of Jesus.
    15·2 answers
  • You visit Antarctica on a cold, breezy morning as part of an exploration mission to save the Polar bears. Your team sees a polar
    5·1 answer
  • What limitations were placed on the presidency by
    12·2 answers
  • What would most likely happen to life on Earth if the carbon cycle stopped? Life would continue unchanged. Life would cease to e
    12·2 answers
  • Tissue culture experiments with PDGF demonstrate that without this substance _____.
    12·1 answer
  • Thermal Energy occurs when you combine these two things....
    6·1 answer
  • What phase of the cell cycle does DNA synthesis occur?
    6·1 answer
  • Page No Date Sex in bacteria is deteaimined by ?<br>​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!