<span>The role of surfactant in neonate is it reduced the surface tension of lung fluids and makes alveoli more stable.</span>
In your opinion, what can we do to reduce our consumption and make the planet more sustainable.
> Being environmentally conscious is not all about plastic bags; it’s about making everyday choices that will — quite literally — determine our success or failure as a species. We can be more conscious about reducing pollution, protecting wildlife, conserving natural resources and take other actions that can help slow the rate of climate change.
> Everyone can make a difference, particularly when smart environmental choices become a habit and perhaps even begins influencing others into taking similar actions. Doing the right thing for the future of life on Earth can even have immediate personal benefits. It can tap into your creativity, can get you more engaged with your community and the world, and may contribute to a healthier lifestyle.
<h3>Things you can do to reduce our consumption and make the planet more sustainable.</h3>
- Buy only what you will use.
- Don't invest in idle equipment.
- Buy products with less packaging.
- Avoid disposable products.
- Kick the bottled water habit.
- Give new life to old electronics.
<h2>
Hope it helps!!</h2>
Answer:
<h2>Excitatory postsynaptic potential (EPSP)
</h2><h2>a) it brings the postsynaptic membrane potential closer or nearer to threshold </h2><h2>b) it depolarizes the postsynaptic membrane ; and
</h2><h2>
c) it results from the movement of Na+ ions into postsynaptic cell .
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</h2><h2>Inhibitory postsynaptic potential (IPSP): </h2><h2>a) it moves the postsynaptic membrane potential farther away from threshold .</h2><h2>
b) it hyper-polarizes the postsynaptic membrane ;
</h2><h2>
c) it results from the movement of K+ ions out of the postsynaptic cell
</h2><h2>
In both cases: it is a graded potential in both.
</h2>
Explanation:
Excitatory postsynaptic potentials are excitatory because they make the postsynaptic neuron to generate an action potential by depolarizing the membrane and bringing the membrane potential closer to threshold where new action can generate .It happens by opening ligand-gated Na+ channels in the postsynaptic membrane, which then allows Na+ ions to enter the cell.
Inhibitory postsynaptic potentials make it more difficult for the postsynaptic neuron to produce an action potential by hyper-polarizing the membrane and moving the membrane potential farther from threshold. This occurs by opening ligand-gated K+ channels, which allows K+ ions to move out of the cell.
Regardless of as they are excitatory or inhibitory, all postsynaptic potentials are graded. and by this , its magnitude decreases with distance from the synapse along with the cell body.
<h2>Alpha-helical membrane spanning segments</h2>
Explanation:
- In single-pass trans membrane proteins, the polypeptide crosses just a single time, while in multi pass trans membrane proteins, the polypeptide chain crosses on different occasions. An elective path for the peptide bonds in the lipid bilayer to fulfill their hydrogen-holding prerequisites is for different trans membrane strands of polypeptide chain to be orchestrated as a β sheet as a shut barrel This type of multi pass trans membrane structure is seen in proteins, which we examine later. The solid drive to augment hydrogen holding without water likewise implies that a polypeptide chain that enters the bilayer is probably going to go completely through it before altering course, since chain bowing requires lost ordinary hydrogen-holding communications.
- Since trans membrane proteins are famously hard to take shape, generally few have been examined completely by x-beam crystallography. The collapsed three-dimensional structures of practically the entirety of the others are dubious. DNA cloning and sequencing strategies, in any case, have uncovered the amino corrosive successions of enormous quantities of trans membrane proteins, and it is frequently conceivable to foresee from an investigation of the protein's arrangement which parts of the polypeptide chain reach out over the lipid bilayer.