why does photosynthesis occur in plants?

Answer 1

Photosynthesis occurs in order to create sugars and oxygen from water and carbon dioxide. The splitting of water into its constituent atoms is unique in the biological world.

It is able to occur because of the existence of chlorophylls (chlorophyll a and b) and associated pigments (mainly carotenoids) which are able to absorb light of the correct wavelengths from the sun. It is the radiation from the sun which provides the energy to split water. Once the hydrogen and oxygen are separated they can react with the carbon from carbon dioxide to form simple sugars which are then processed into more complex molecules.

Photosynthesis converts inorganic elements into organic molecules. When eaten by herbivores, the energy stored in plants is released; this energy is then passed up the food chain. Thus, photosynthesis powers the whole of the living world.

Most of photosynthesis occurs in plant organelles called chloroplasts where the physical structure of stacked lamellae create a large surface area for photosynthesis to occur and this is of course where chlorophyll molecules reside

Answer 2

For survival!!

Photosynthesis (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.

Answer 3

photosynthesis is the way plants make sugar from water,and carbo dioxide under the influence of light. It is because photosynthesis exists that plants exist..

Answer 4

photosynthesis is an important process by which plants make their own food. ( starts off food chain )

Carbon Dioxide + Water = Glucose + Oxygen

Chlorophyll absorbs sunlight n heat energy to quicken reaction.

Answer 5

Gather energy from the sun. This energy is later used to power a variety of different chemical reactions within the cell, including the important carbon-fixing reactions.

Answer 6

Basicly, the plant makes it's own food from the sun.

Answer 7

It allows them to make glucose and oxygen. Glucose to use as fuel, and oxygen as a byproduct. It's the opposite reaction of cellular respiration

Answer 8

in really really simple terms, it traps the energy of the sun into molecules of glucose, which are then respired to realse the energy in a usable form

Answer 9

To produce sugar for them to live, and oxygen for us to breathe.

Answer 10

That's how they get energy to grow and reproduce.