Where do plants use their energy for??

Question

If plants photosynthesis to convert light energy into sugar, which is used to create energy for the plant, then what is that energy for? Isn't it that plants do not move(only when they move with the air) like we do??

Answer 1

To live and grow and reproduce, that's what plants need their energy for, and they don't have to "move around" to do those things.

Answer 2

Your observation is at best partially correct or incorrect.

Plant do move depends on the kind of plant.

Some move up word, drop there leaf and regenerate them, Some crawl for miles, some go down and reproduce there.

But moving only does not require energy growing itself take lots of energy.

I hope this will answer your Q?

But plant do move like us and Sir.Ramman has a noble price for discovering that phenomenon and proving that plant do respond to the surrounding.

Some examples:

Sun flower will face the sun.

Most plant will tilt towards the sun light. You can do this experiment yourself take a perfectly straight growing potted plant and put it in a corner of the dark room, with some light-tight window at night,now close the windows, then, open only one window that is away from it in the morning, few hour later observe the plant.

See what it has done.

Now at night rotate the pot 180 degrees after closing the windows, then open the same window in the morning again. Few hour later observe the plant.

Sir Ramman, played the music and made the plant dance, he stop the music and plant stop dancing.

Answer 3

Plants need lot of energy for various metabolic processes.
Now take an example of a fruit-yielding plant.Where does the fruit come from? It come from flower.The flower is budded in the tree which becomes a fruit later.
The budding of the flower is a work done by the plant. For this the plant needs energy.

Similarly in case of getting minerals or water from the earth.
The roots of the plants perform reverse osmosis.
So this reverse osmosis of the plant is simulated by the enrgy that it makes out in photosynthetic reaction.

In case of a growing tree also the enegy is needed.

So there are lot of ways with which plants utilise the energy the get in a photosythetic reaction.

Answer 4

I am not a Sc student. But I have read that it is for food.

Photosynthesis uses light energy and carbon dioxide to make triose phospates (G3P). G3P is generally considered the prime end-product of photosynthesis.
It can be used as an immediate food nutrient, or combined and rearranged to form disaccharide sugars, such as sucrose and fructose, which can be transported to other cells, or packaged for storage as insoluble polysaccharides such as starch.
...... 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 are used for synthetic reactions in photoautotrophs. The overall equation for the light-dependent reactions under the conditions of non-cyclic electron flow in green plants is:

Answer 5

How Do Plants Use Food

Answer 6

As we all know the source of plants energy is sun light so they use this in mechanical photosynthesis. They use it to break down big particles into small particles of starch and sugar

Answer 7

Photosynthesis means absorbing of energy to make the sucrose[sugar] which is the food for them, though they wont move they need food to survive so they perform photosynthesis process which inturn needs the energy ........

Answer 8

Um, no. Plants grow. Plants make oxygen that we breathe, that is their main "purpose" in life so to speak.....well, besides providing food, wood, and things like that

Answer 9

Plants need energy to sustain their life and they actually DO grow, reproduce and die.

Answer 10

Same things we do....

Growth, reproduction, respiration, absorbing water, circulation of nutrients throughout the actual organism.....

They might not move around like we do, but they still do a lot!