Our main energy source is the sun. what are your options?
The answer can be pollination or cross-pollination.
What viral disease now thought to only exist inside a laboratory caused the death of many American Indians after europeans arrived in north American?
smallpox
Answer:
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.
Chemical eqn of photosynthesis is
CO₂ + H₂0 —> C₆H₁₂O₆ + O₂