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Nana76 [90]
2 years ago
11

What are a type of filament system in eukaryotes that form non-polar paired filaments and bind GTP?

Biology
1 answer:
irga5000 [103]2 years ago
7 0
Microtubules.

These filaments consist of tubulin dimers (consisting of one a-tubulin and one B-tubulin subunit) When GTP binds to the B subunit of the dimer it changes the conformation of the dimer and allows for polymerization to form a microtubule filament. The B-subunit will eventually hydrolyze the GTP to GDP, at which point the conformation of the dimer will change again such that the dimers will depolymerize and the microtubule will dissolve into the cytoplasm.
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1. Under the broken rock are layers of mostly solid rock
kozerog [31]

the broken rock layers of mostly solid rock is true

3 0
3 years ago
In response to a state of shock, what mechanisms does the sympathetic nervous system utilize in the four distinct stages to help
svetlana [45]

Answer:

Increase in heart rate.

Increase in respiratory rate.

<h2>What is a sympathetic nervous system?</h2>

The peripheral nervous system and the central nervous system are the two primary divisions of the human nervous system, as shown in the image below.

Two additional parts make up the peripheral nervous system. Skeletal muscle movement that is voluntary is controlled by the somatic nervous system. The somatic nervous system is at action when you choose to bring your coffee cup to your lips; it is doing so by engaging the necessary muscles. The autonomic nervous system, which regulates functions outside of our conscious awareness, is the second part of the PNS.

The parasympathetic nervous system and the sympathetic nervous system are additional divisions of the autonomic nervous system (which you are interested in). They have negative consequences on one another, to put it very broadly. While the parasympathetic neural system largely works to calm the body, the sympathetic nervous system often stimulates the body. Although this is a streamlined perspective, it might be helpful to think about it this way.

The sympathetic branch of the autonomic nervous system speeds up heartbeat, slows down digestion, opens up airways in the lungs to allow for greater airflow, triggers the liver to release glucose, and relaxes the bladder. All of this wakes up the body and gets it ready to "fight."

The parasympathetic division, in contrast, slows the heart rate, tightens the bronchi in the lungs, and boosts blood flow to the digestive system. The phrase "relax and digest" has been used to describe it.

The parasympathetic nervous system's nerves originate from the brainstem and spinal cord, as shown in the diagram. The "ganglia" (collections of cell bodies) of the sympathetic nervous system, however, exist beyond the spinal cord.

It's interesting to note that whereas the sympathetic nervous system activates the body using both acetylcholine (ACh) and norepinephrine (NE), the parasympathetic nervous system solely needs ACh to affect organs.

The sympathetic and parasympathetic nerve systems are autonomic, which means we typically have minimal control over them.

7 0
2 years ago
Use a Punnett square diagram to show why, for each pregnancy, the chances of giving birth to either a boy or a girl are 50-50. E
ikadub [295]

Answer:

Because the offspring of a male and female are always going to be xx, xx, xy, or xy.

Explanation:

Remember that men have different reproductive chromesomes than women. Women have 2 x chromesomes(xx) while men have 1 x and 1 y(xy). These are given down to their offspring.

So we can write the this out in a punnet square as(link down below).

After you see the visual, you will find that the genotypes are xx, xx, xy, xy.

As I said above, women have sex chromesomes xx, while men have sex chromesomes xy. When you match the genotypes on the punnet square with the ones we know from men and women, we find that two of them match with men and two match with female.

So with this, we can conclude that 2/4 of offspring will always be male and 2 will be female. And as you well know 2/4 is 1/2 which is 50%.

3 0
2 years ago
In the 1980s, British researchers demonstrated that a human gene could be inserted
GuDViN [60]
O The yeast cell mutated the gene to it compatible.
3 0
3 years ago
Lungs, Trachea, Diaphragm, Nose: Which organ system do these belong to?
Kitty [74]

Answer:

Respiratory

Explanation:

they all come together and help with breathing and oxygen :)

4 0
2 years ago
Read 2 more answers
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