I need help with these questions please Thank you so much P

Preparative Chromatography 1. How do a-carotene and Y carotene differ from B-carotene? 2. How is B-carotene used in humans? 3. Calculate the degrees of unsaturation of B-carotene and chlorophyll. 4. Why are these pigments (B-carotene and chlorophyll) unstable in the presence of light and heat energy 5. Which of the two pigments is more nonpolar and why? 6. Would you classify B-carotene as an alkane, an alkene, or an alkyne? Why?

Solution

Qu-1:

These three types of carotenes are primary isomers and -carotene and -carotene have associated with “one retinyl group in their -ionone ring” whereas -Carotene has a double bond with two retinyl groups

Que-2

The two retinyl groups of beta carotene is useful to promote the synthesis of vitamin so that retinal function is easier for good eye sight