Regulatory proteins control the cell cycle.
If the regulatory proteins are malfunctioning or absent, the cells may reproduce abnormally fast, causing a tumor.
Answer:
One of the characteristic feature of the phospholipid bi- layer is that like dissolve likes.Therefore,polar molecules and compounds pass though the hydrophllic heads,while non-polar lipid soluble substances pass through the hydrophobic tail,but can not diffuse across the head.
The plasma membrane is amphipathic.It is made up of the hydrophilic heads and hydrophobic tails
Cortisol is made of lipid.Therefore,it will diffuse easily across the bi layer of the plasma membrane though the tail,while LH and Epinephrine,will not diffuse across this hydrophobic barriers,since they are made up of polar molecules.
Explanation:
Am certain that the somatosensory cortex in the human brain processes information about bodily sensations. The somatosensory cortex receives all sensory input from the body. Cells that are part of the brain or nerves that extend into the body called neurons.. Neurons that sense feelings in our skin, pain, visual, or auditory stimuli, all send their information to the somatosensory cortex for processing.
Because it is catalyst which speeds up or slows down the speed of the chemical reaction without being changed or used up
the answer is Hydrocarbons
