photosynthesis!!! aahhh!!!?

Question

ok i just need a simple answer to this...

so photosynthesis is by green plants and the clorophyll stuff blah blah blah ok. but plants go through respiration too, correct? so they go through photosynthesis and produce glucose and oxygen and water. *is the glucose stored or used as energy or both? *and do they release all the oxygen or do they use it during respiration too?

*is the light dependent reaction the same thing as respiration [like i've been told]

Answer 1

Plants do carry out respiration and photosynthesis. The only cells that can do photosynthesis are the cells in the leaves (and stems of some plants) that have chloroplasts. All non-photosynthetic cells can only get energy by respiration. Even the photosynthetic cells get energy by respiration at night.

So, some of the glucose produced by photosynthesis is stored for later use, some is transported to other cells in the plant for immediate use, and some is used by the photosynthetic cells for both immediate and later use.

The light dependent reactions (I hate that term) refers to the reactions that plants use to convert light energy into chemical energy that they use during the "dark reactions" (That term is even worse) to convert carbon dioxide into glucose.

Respiration happens by exactly the same reactions you use to convert glucose and oxygen into carbon dioxide and water.

For the most part, the oxygen is released from the plant into the air, and then oxygen is absorbed from the air by any cell needing it.

Answer 2

not really. plants dont need oxygen to survive so they excrete it. they store glucose so animals eat them thus they obtain it.

fyi, plants grow quicker under red lights.