Comparing the structures of the carotenes to the chlorophylls, which (the carotenes or the chlorophylls) are more polar? Which (the carotenes or the chlorophylls) should you expect to elute off your column first? Is your prediction consistent with your experimental results?

Carotenes are less polar and would elute first.

Explanation:

Carotenes are organic compounds like chlorophyll, they are responsible for the orange color in carrot. So, while chlorophyll is green, carotene is orange in color.

In terms of structure, carotene is a hydrocarbon (made up of carbon and hydrogen chains), making it non-polar. On the other hand, chlorophyll (made up of carbon, hydrogen, oxygen, nitrogen, magnesium) is more polar.

Chromatography is a separation technique used to separate two or more mixtures. The working principle is based on how fast each solute travels. So in column chromatography, the components of the mixture travel through a column (e.g a burette) at different speed. The less polar component travels faster.

So far a mixture of carotene and chlorophyll, the less polar carotene will travel faster than the more polar chlorophyll. Therefore, carotene will elute first.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

my teacher would say no s