2006-10-01 04:36:16 · 14 answers · asked by tripudjo 2 in Science & Mathematics ➔ Botany
The red pigments (carotenoids) in chromoplasts.
2006-10-01 10:23:42 · answer #1 · answered by Sammyleggs222 6 · 0⤊ 0⤋
The colour of Tomato depends on the Chromoplast pigments present in the Tomato Cells, When the Tomato fruit is unripe it is green due to presence of Green Coloured Chloroplast alongwith Colourless Chromoplast ,as the Tomatoes undergo the phase of ripening the colourless chromoplasts are converted to red coloured chromoplasts and the green coloured Chloroplasts are degenerated. In case of Tomato the name of the chromoplast is 'Lycopene'.
2006-10-02 03:38:38 · answer #2 · answered by deekay s 2 · 0⤊ 0⤋
Tomatoes are "RED" because it contains a carrotenoid known as "Lycopene". Lycopene is a terpene assembled from 8 isoprene units. The color of lycopene is due to its many conjugated carbon double bonds. Each double bond reduces the energy required for electrons to transition to higher energy states, allowing the molecule to absorb visible light of progressively longer wavelengths. Lycopene absorbs most of the visible spectrum, so it appears red.
In 2005 the ingredient was classified as GRAS (Generally regarded as safe) by the FDA.
Many recent studies clearly document the utility of this carotenoid as a potential treatment of many forms of cancer, especially, prostate.
2006-10-01 11:57:16 · answer #3 · answered by Yadu M 3 · 1⤊ 0⤋
Sunlight seems to be colourlless or white.But really it is made up of several colours mixed together.Things are different colours.This is because they soak up some of the colours from light and let others bounce off them.A tomato soaks up all colours except red , which bounces back off it,into our eyes.So we see a red tomato.
2006-10-01 13:33:41 · answer #4 · answered by adi 1 · 0⤊ 0⤋
not all tomatoes are red there are also green and yellow ones
2006-10-01 11:40:18 · answer #5 · answered by grandmaginnys 2 · 0⤊ 1⤋
Due to the pigment Lycopene.
2006-10-01 13:41:42 · answer #6 · answered by ~tn~ 4 · 0⤊ 0⤋
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2006-10-01 11:46:51 · answer #7 · answered by BAZ 2 · 0⤊ 1⤋
due to the presence of lycopene that is a caretenoid pigment present in chromoplastids..
2006-10-01 14:15:34 · answer #8 · answered by Anonymous · 0⤊ 0⤋
you ever heard of "fried green tomatoes"?
2006-10-01 11:44:04 · answer #9 · answered by michelle b 3 · 0⤊ 1⤋
The grand design... but some are green or yellow even..
2006-10-01 11:44:06 · answer #10 · answered by limgrn_maria 4 · 0⤊ 1⤋