Answer:
<u>d. Transport proteins within the membrane serve as a tunnel for molecules to enter the cell.
</u>
<u />
Explanation:
Solutes are typically moved across the cell through either passive or active transport. The cells, surrounded by a bilipid layer or plasma membrane is amphiphlic- its polar, hydrophilic lipid heads face outwards, while their non-polar hydrophobic lipid tails face inwards towards each other.
While lipid-soluble molecules move across the layer easily, it is also difficult for charged and also large molecules to move across its surface, into the cell. Transmembrane channels, <u>embedded within the membrane</u>, help to maintain selective permeability as transport proteins, pores and gated channels. Simple diffusion happens as a method of passive transport in cells through plasma membranes.
The solutes travel through the plasma membrane in the process of diffusion from regions of high concentration to regions of low concentration; this occurs without the use of energy. <u>Molecules moving against their concentration require active transport mechanism to cross the membrane</u>.
Answer:
The right answer to this question is: 310k
Explanation:
There's a very good formula that can help us to find this answer, but first, we need to know the temperature scale in Celsius and Kelvin, there's an image below that will help us gather information.
The formula is quite simple, check it below:
C/5 = K-273/5
putting the values we already have in the formula it would be like this:
37/5 = K-273/5
Cutting out the fives, we can have the final result
37= K-273
37+273 = K
K= 310.
Each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend, opening K+ gates.
Answer:
It becomes something like that
It becomes firm/turgid if it were an animal cell it would've burst but the cell wall prevents it from doing so.
