The cell membrane is made of phospholipids and is selectively permeable , or semipermeable. which major theme in biology does this statement represent

Popped your question into Google and it appears to be a multiple choice question with the most reasonable answer being "structure relates to function."

I know of one example from an anatomical standpoint that can serve as an explanation. The cell membrane being made of phospholipids allows for steroid hormones (most likely triggered by your endocrine system, primarily composed of cholesterol) to be able to diffuse into (and or out of) the cell and act directly upon receptors within it, compared to proteins which must act on the cell's surface. In this example, the structure of the cell membrane (being selectively permeable to fatty molecules) allowed for function (diffusion of steroid hormones) to occur.

Want a more tangible, large-scale example of structure relating to function. Look down at your hand. Your palm contains no sweat glands or hairs and your thumb is opposable (both are structure) to allow you to grip things (function).

this protocol provides a detailed procedure for total protein extraction for western blot analysis from achieved samples following trizol isolation of rna.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.