1) receptor proteins need to b on the outside of a cell so the cell can absorb the nutrients it needs. receptors have a specific job, membranes are semi-permeable meaning it doesn't absorb nutrients that are not needed 4 a cell to function in a healthy individual.
2) water and glucose are what most cells need to produce energy to function and produce ATP, which allows the bloodstream to deliver nutrients to the entire body.
It basically means a superficial wound :)
<span>Osteomalacia is the disease known for softening of bones in adults. This is often caused by a vitamin D deficiency. This disease in children is known as Rickets which is more severe. Some symptoms to look out for are muscle weakness, body pains, and fragile bones. This deficiency is sometimes caused by a lack of sunlight or in some cases, diet.</span>
Translation involves the synthesis of <u>proteins</u> and occurs in the <u>ribosome.</u>
Where did the first cell on earth come from?
