<span>Simply because fatty acids, amino acids and nucleic acids are acids that produce hydrogen +. In chemistry definitions, acids are substance that tastes sour that donates hydronium ions in a water solution. An acid is also a compound of substance that produce proton and embrace electrons. A proton according to science is something that has hydrogen but doesn't have electron. That's why when these acids are combined they increase the number of hydrogen + or (H+) in a certain substance.</span>
Receptors that are embedded on the cell membrane bind to chemicals outside of the cell and this binding process cause a chemical response on the inside of the cell.
These receptors that help in communication between the cell and the outside world are called cell surface receptors or sometimes transmembrane receptors.
A majority of chemical signals are water soluble thus unable to cross the fatty lipid bi-layer of the cell membrane. Their receptors, which are protein in nature therefore must span the membrane, detect their presence outside of the cell and transmit this information into the interior of the cell.
The movement of the eardrum causes the bones of the middle ear (the ossicles) to vibrate. These vibrations then pass into the cochlea, the organ of hearing. Within the cochlea, the hair cells on the sensory epithelium of the organ of Corti bend and cause movement of the basilar membrane.
Answer:
hypothesis is an idea or explanation that then test through study and experimentation
