Yeah yeah so :D,
Large polar molecules can only cross the membrane with the help of protein named channel protein and carrier protein.
So, this both proteins act like a gate, the large molecules enter the protein and the protein let the large molecules in to the membrane. (see the picture so that you can understand more, its carrier protein)
the only difference between channel protein and carrier protein is, channel proteins has fixed shape while carrier protein can flip.
Energy<span> cannot be created or destroyed, but it </span>can be saved<span> in various forms.
</span>The term that denotes <span> the capture of energy produced at one time for use at a later time is energy storage.
Thermal energy might be saved up for future use.
</span>Thermal storage is used for electricity generation<span> by using power from the sun, even when the sun is not shining</span>
More hydrogen ions means more acidic, more hydroxide ions means more basic
2. High birth rate, zero death rate, high immigration, zero emigration
This is because birth rate and immigration increase population size, and death rate and emigration decrease population size, so maximizing the former and minimizing the latter are ideal
Antagonists muscles (e.g. biceps and triceps brachii)
