Photosynthesis

The source of oxygen in photosynthesis in plants is water. During the light-dependent reactions of photosynthesis, water molecules are split into oxygen, protons, and electrons. The oxygen is released into the atmosphere as a byproduct of this process.

In photosynthesis, the the electron transport chain is part of the light dependent reactions. The "light independent reactions" are the Calvin-Benson cycle and do not include an electron transport chain, but the Calvin Cycle cannot proceed without the ATP and NADPH produced during the light reactions.

Photosynthesis is the only process in the earth by which all the living organisms in the earth make their living possible by consuming oxygen from the plants through which they produce food by this process.

Violet-blue and red light are most useful for the photosynthesis because The chlorophyll molecules of chloroplasts absorb Violet-blue and red light ( the color most effective in driving photosynthesis) and reflect or transmit green light. This is why leaves appear green. Source: Biology 141

A reactant exists at the beginning of a chemical reaction whilst a product exists at the end. They are alike in the fact that to get to a product you need to have a ready supply of the reactants. An example of a simple reactant/product reaction is shown below.

Magnesium + Oxygen --> Magnesium Oxide

Reactant + Reactant --> Products

Hope this helps

No. Photosystems I and II are where light-dependent reactions occur, while the Calvin Cycle is where light-independent reactions occur. Photosynthesis begins with Photosystem II, then Photosystem I, then the products from there go to the Calvin Cycle. (yes photosystem II comes before photosystem I)

Oxygen.

ATP and NADPH2 are used to reduce CO2 to carbohydrates, fixing the energy of light (used to produce the ATP and NADPH2 in the light reactions) into a chemical form that then the plant, and the animals eating the plant, can use. There are several intermediary molecules used in the process, actually regenerating the first one used in the process (Ribulose-1,5-biphosphate),hence the "cycle" part in the name.

The two reactions which occur during photosynthesis are light reaction and dark reaction. Light reaction takes place only in the presence of light. Dark reaction can occur with or without light.

Water (yes it is an inorganic material). Don't get it confused with carbon dioxide because that's for dark reactions.

ATP and NADPH

dark reaction:

-enzymes like Rubisco, phosphoglycerate kinase, Glyceraldehyde 3-phosphate,Triose phosphate isomerase, Aldolase and Fructose-1,6-bisphosphatase etc

-Ribulose-1,5-bisphosphate (RuBP) a 5 carbon suger which must be recycled

-CO2

-materials made in light reactions like NADPH and ATP

And of course chloroplast

Photosynthetic reactions remove the oxygen atoms from water (H20) and turn them into free oxygen gas (02). So yes, photosynthesis produces oxygen as a (waste) product, its primary product is glucose to provide "food" for the plant. Yes.

Photosynthesis is one of the processes that plants use to obtain energy in a usable form. It is an example, and a good one at that, of a chemical reaction simply because it involves multiple chemical, certain conditions and definite products. The reaction for photosynthesis is thus:

6CO2 + 6H2O --(Light)--> C6H12O6 + 6O2

This process is useful as it enables plants to turn light energy, usually given from the sun, into chemical energy in the form of glucose (C6H12O6) and oxygen (O2), which can be used for the plant's biochemical activities.

The kingdom that contains photosynthetic multicellular organisms that live on land is Plantae. Plants in this kingdom use sunlight to produce their own food through the process of photosynthesis. They are an essential part of terrestrial ecosystems and play a crucial role in maintaining life on Earth.

Light breaks down water into hydrogen and oxygen, the oxygen is then released. Next the hydrogen and its electron separate so that they are H+ and e-. The electrons are dragged across which creates massive energy.

The endosperm part of seeds contains energy in the form of starch.

The Calvin cycle takes place in the stroma of chloroplasts.

Photosynthesis is the process plants and other organisms use to convert light energy into chemical energy to later be released to fuel the organisms' functions. The equation for photosynthesis is 6CO2 + 6H20 ---> C6H12O6 = 6O2.

ATP and NADH

If by "need for survival" you mean energy or ATP, yes; the chloroplast in plant cells are able to turn the light energy from the sun into energy. Most people know that a plant cell usescarbon dioxide but many don't realize that it uses oxygen to to create energy over 66% more efficiently. Back to your original question though, the needs of human cells are very different than that of a plant and I quite possibly misunderstood your question but it was the best I could think of.

Palisade Mesophyll and Spongy Mesophyll layers have cells that contain a lot of choloroplasts, but in these cholorplasts are thylakoids, sort of like mitochondria in animal cells, and in the thylakoid membranes you find photosystems one and two which absorb light through accessory pigments in the antenna complex which passes down to the chlorophyll A in the reaction centre of this photosystem.

water donates the electrons when H2O is separated into 2 hydrogen and one oxygen by the water-splitting enzyme in photosystem II. The electrons then enter the electron transport chain, entering a hydrogen pump which uses energy to push hydrogen into the thylocoid. Electrons get recharged in the next chlorophyll almost like a battery, finally they combine with NADP+ and a hydrogen to create NADPH.

btw, two electrons are donated per H2O molecule

Tropism is when a plant changes its direction of growth in response to the environment.

Hope this helps you. Also if you go to Scott Forestmens book of science on page 110 is the lesson about that.

Photosynthesis primarily takes place in the euphotic zone of the ocean. This is the upper layer of the ocean where sunlight penetrates, allowing plants and algae to produce energy through photosynthesis.