Let's say you have a mixture for which you want to check the composition. Unfortunately, after quite a while, and several TLC analyses using our system, no spots have moved up the plate. What change could you make in the TLC system to try to get at least one compound in the original mixture to move up the plate?
1- try a more polar solvent
2- try a less polar solvent
3- try a more polar adsorbent

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.