Describe the relationship between chlorophyll and the color of plants?

Answer 1

I would but we have mixed company in the group. Besides, it's your homework question. There's still a self contained multi-media device at your fingertips. Shhhhhh, you'll put it over on everyone else in your class. It's called a text book. Don't spread it around.

Answer 2

Chlorophyll

Chlorophyll is a green pigment found in most plants, algae, and cyanobacteria. Its name is derived from Greek: chloros = green and phyllon = leaf. Chlorophyll absorbs light most strongly in the blue and red but poorly in the green portions of the electromagnetic spectrum, hence the green color of chlorophyll-containing tissues like plant leaves.

Answer 3

chlorophyll is what either changes the color of the leaves during the seasons or feeds the plant

Answer 4

chlorophyll gives plants green color

Answer 5

Makes plants green

Answer 6

Chlorophylls, the primary photosynthetic pigment class, reflect green but absorb both blue and red wavelengths that flank the 'green gap' in the absorbed spectrum. The green gap reflects most over the span between 470 & 650nm. Alpha absorbs reasonably well at a wavelength of about 450nm but absorbs most at red 675nm. Chlorophyll beta absorbs most effectively at blue 470 but also at 430 and 640 so is extends the absorption range by about 30nm into the 'green gap' of reflected light in plants with both.
The question is why evolve to reflect a portion of the light. If the natural evolution of plants had been driven by the need for high efficiency in the use of sunlight, then the leaves of all plants would have been near black. Black leaves would absorb sunlight more efficiently than leaves of any other color. Green plants convert only about 1 percent of the sunlight that falls onto them into chemical energy. Collection of solar energy with greater efficiency is possible. We have designed solar batteries that already convert sunlight into electrical energy with 15 percent efficiency then with nearly no loss in energy it could be converted to chemical energy. Obviously plant evolution was driven by other needs. It is advantageous for a plant growing in a hot climate to reflect sunlight that is not used for growth to prevent IR damage by overheating and denaturing the proteins. There is plenty of sunlight and it is less important to use it with maximum efficiency than it is to prevent UV damage to the genetic code. Below 400nm there is increasing energy of the photons to raise the spectre of photochemical damage and limit absorption to above 400. Beyond 700 nm the energy levels are insufficient to effectively drive photochemistry (except in cyanobactria with chlorophyll d at 740nm).
The specific omission of green relates to the specific bond lengths then found in the chlorophyll molecules.
The original phototrophic organisms were aquatic phototrophic bacteria, marine or fresh water species. They suspend at different depths or grow in bacterial mats on the sediment beds. Light absorption under water is best in the long penetrating red wavelengths where chlorophyll a mostly absorbs.
Chlorophyll b is a modified chlorophyll a. Chlorophyll a oxygenase (CAO) converts chlorophyll a to b by changing a methyl to a formyl side chain. This chance mutation shifted the primary absorption spectrum from red to blue creating the green gap fortuitously. It increased the absorption efficiency in shallow water and helped shield the organism from UV damage. Leaving us with green plants.
They selection to hold chlorophyll stable was was stronger than the selection to absorb in the green gap. Instead accessory pigments evolved with chlorophyll in light harvesting complexes that further defray possible damage from incident light.
Carotenoids reflect yellow, orange, or red and absorb blue light energy between 400-500 nm. In addition to light-harvesting role carotenoids photoprotect antenna complexes

Chlorophyll c has a double bond that shifts further into the green gap but reduces the absorption efficiency. Chlorophyll a/c complex, found in brown algae, diatoms, and flagellates, uses carotenoids to accept 550nm in aquatic environments and protect against damage.

Answer 7

Hey Kid,
In my day we used to do (in my case not do) our homework on our own notselves.
If you get stick from your teacher are you going to share the punishment out amongst us all?
Ever heard of The Beatles? No!
You're so young it's probably better to guide the teacher into the topic "What I did on my summer holiday". Give them this subject and they will usually drone on for hours and forget about the test.
If you really want to be nasty, towards the end steer the subject to the teacher's sex life. It never worked for me as I had priests as teachers (there's an oxymoron in there for sure) but you can try.
Let me know how it works out!

Answer 8

Sunshine somehow makes plants green.Could it be that all the right elements together in plants makes them green.Like yellow and blue paint mixed together make green.

Answer 9

it gives the plants there color!!

Answer 10

that`l be photosynthesis.look it up.there`s this new thing called the `tinternet or somethin`...