can u help me please..??? its an URGENT!!!?

Question

1. what do plants need for photosynthesis? explain how plants are structurally design so they can obtan their needs?
2. cite specific processes in photosynthesis that can illustrate the first law of thermodynamics that " energy can neither created nor destroyed, it can only be converted from one another...

pls.. help me its an urgent... ty

Answer 1

In plants cells there is a large molecule called chlorophyll which has a specific structure so that if a photon(a single ray of light) hits it then it gives off an electron.This molecule takes a new electron from a water molecule thus dissociating it to O2 and H+.From this process there will be a lot of protons(H+) on one side of the chloroplast membrane and when they finally get out of there a new energy -carrier molecule the ATP is formed.This molecule gives energy to form molecules like glucose.The excess O2 goes out of the plant which is why we can breath.Of course this is a very short and unaccurate descreption of photosynthesis but it shows that the process is started by light which kicks the system into action.

Answer 2

Sunlight & carbon dioxide. Chlorophyl within a plant's cells uses the energy from sunlight to break down CO2 and expel O2 (opposite of humans, who inhale O2 and exhale CO2). They also need water and nutrients that they absorb through their roots in the soil.

Then again, I haven't taken science since high school, so this could be a little rusty... :P

Answer 3

1.sun and water,see it trougth microscopic glass dear

2.by money

Answer 4

see above