why do plants need light?

Answer 1

The chlorophyll ( green colour) absorbs the red part of the light to provide the energy to convert water and carbon dioxide into carbohydrates. The plant, or anything that eats it can then extract that energy to live on, by digesting or metabolizing the carbs.

Answer 2

Plant need light to continue their life needed process called Photosynthesis.
It lead to production of sugar compound with the help of water and Carbondioxide
In the absence of light it can not be continue

Answer 3

Have you ever heard of a process called photosynthesis? That is why plants need light. The plants absorb the light and make that into a sugary substance. This is their food and they absorb that into their leaves and grow from that substance.

Answer 4

Plants need light to perform only light reaction not whole photosynthesis.Plant take light in the form of photons with the help of chlrophyll a and b,chromatins etc.In the light reaction ADP are changed into ATP.
ADP + E-----ATP(adnosis tri phosphate)

Answer 5

To complete their fotosynthesis (photo=light, synthesis=putting together), generally, is the synthesis of sugar from light, carbon dioxide and water, with oxygen as a waste product. It is arguably the most important biochemical pathway known; nearly all life depends on it. It is an extremely complex process, comprised of many coordinated biochemical reactions. It occurs in higher plants, algae, some bacteria, and some protists, organisms collectively referred to as photoautotrophs. This article summarizes some of the major aspects of the process and provides links to more detailed articles explaining the numerous technical details, and implications, involved.
Most plants are photoautotrophs, which means that they are able to synthesize food directly from inorganic compounds using light energy -for example the sun, instead of eating other organisms or relying on nutrients derived from them. This is distinct from chemoautotrophs that do not depend on light energy, but use energy from inorganic compounds.

The energy for photosynthesis ultimately comes from absorbed photons and involves a reducing agent, which is water in the case of plants, releasing oxygen as a waste product. The light energy is converted to chemical energy (known as light-dependent reactions), in the form of ATP and NADPH, which is used for synthetic reactions in photoautotrophs. Most notably plants use the chemical energy to fix carbon dioxide into carbohydrates and other organic compounds through light-independent reactions. The overall equation for carbon fixation (sometimes referred to as carbon reduction) in green plants is

n CO2 + 2n H2O + ATP + NADPH → (CH2O)n + n H2O + n O2,

Mostly, all plants complete this, and for such, need the sun, in which includes light.

Answer 6

plants need light to carry out the light reaction of photosynthesis, which produces ATP and NADPH2 (energy currency of life) to carry on with the dark reaction of photosynthesis (c3 cycle, c4 cycle)

Answer 7

All living things are solar powered including humans.

Answer 8

I'm in college botany right now. Chlorophyll REFLECTS RED, we just did a lab on it.

Answer 9

helps them take in nutrients required to grow.photosynthesis

Answer 10

it's called photosynthesis, their way of making food.