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bulgar [2K]
3 years ago
5

What is the purpose of a watery fluid in the lungs that contains a surfactant, which is a detergent-like substance composed of p

roteins and lipids?
Biology
1 answer:
vovangra [49]3 years ago
6 0
The watery fluid of the lungs is a surfactant produced by type II alveolar cells which is mainly composed of lipids such as lecithin and sphingomyelin and proteins. The main function of the surfactant is to reduce the surface tension in the alveoli to prevent spontaneous collapse or atelectasis. 

<em>The clinical significance of this is that premature babies are not born with enough surfactant therefore their lungs collapse and they develop a disease called respiratory distress syndrome. </em>
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How does the shape of a protein relate to its function? Refer to specific details about this case and sickle cell anemia.
Serggg [28]

Answer: A protein's specific shape determines its function.

Explanation: If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected.

5 0
2 years ago
PLEASE SHORTEN SAMPLE ANSWER, PLS I RLLY NEED THIS
GaryK [48]

Answer:

here is the answer

Explanation:

Scarlet king snakes cannot camouflage and so instead they mimic a dangerous neighbor. Scarlet king snakes have evolved over the years to look like coral snakes so that they could scare away other predators that may be dangerous and would want to hurt them

this is the reason

----- now the simplified answer

the scarlet snake has a very random ( rare ) genetic variation , it mimcs or

( behaves a like or looks like  coral snake ) , it turns out that this trait  helps the snake high chance of survival, snake with this kind of trait are often likely to reproduce and pass their traits to their children

now most of the scarlet snakes have this trait

trait ;  a distinguishing quality or characteristic, typically one belonging to a person.

thank you

4 0
3 years ago
Read 2 more answers
When a motor neuron and the skeletal muscle cell it innervates are at rest:?
Nuetrik [128]

<span>Particularly the skeletal muscles at rest gain most of their energy from the aerobic respiration of fatty acids. Hence fatty acids provide the majority of the energy for muscle metabolism when a person is exercising at 25% of VO2max. However, the motor neuron is at rest when a neuron is not receiving any input there will be a potential difference. Thus, the potential difference measured when the neuron is inactive and it is caled the resting membrane potential. </span>

3 0
3 years ago
Evaluate whether a sea beeze could occur night
Natalija [7]

Answer:

During the night the water releases it's heat much slower causing the air over the water to be warmer than the air over the land. This ends up working the same as the sea breeze only this time the lower pressure is over the sea and the air then moves from the land.

5 0
2 years ago
Read 2 more answers
Which nation would be CLOSEST to the command side on this economic
Alina [70]

Answer: D) North Korea

==============================================================

Explanation:

The United States, the United Kingdom, and France are all countries that have capitalistic economies. This means that (for the most part) private industry and the market determines what products are produced and who gets those products. I said "for the most part" because these countries don't follow a purely capitalistic structure. There are some elements of government regulation to ensure that no breakdowns occur. The regulations are also to ensure some level of fairness as well, in addition to preventing things like fraud.

On the other hand, countries like North Korea are known as command economies because the government determines what products are to be made and they determine who gets the products. This means that they set the prices as well to whatever they feel is correct (even if the market may disagree otherwise). The term "communism" is often strongly connected to the term "command economy".

7 0
2 years ago
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