求光合作用全过程,要英文版的!

求光合作用全过程,要英文版的!
求光合作用全过程,要英文版的!

求光合作用全过程,要英文版的!
Sunlight plays a much larger role in our sustenance than we may expect: all the food we eat and all the fossil fuel we use is a product of photosynthesis, which is the process that converts energy in sunlight to chemical forms of energy that can be used by biological systems. Photosynthesis is carried out by many different organisms, ranging from plants to bacteria (Figure 1). The best known form of photosynthesis is the one carried out by higher plants and algae, as well as by cyanobacteria and their relatives, which are responsible for a major part of photosynthesis in oceans. All these organisms convert CO2 (carbon dioxide) to organic material by reducing this gas to carbohydrates in a rather complex set of reactions. Electrons for this reduction reaction ultimately come from water, which is then converted to oxygen and protons. Energy for this process is provided by light, which is absorbed by pigments (primarily chlorophylls and carotenoids). Chlorophylls absorb blue and red light and carotenoids absorb blue-green light (Figure 2), but green and yellow light are not effectively absorbed by photosynthetic pigments in plants; therefore, light of these colors is either reflected by leaves or passes through the leaves. This is why plants are green.

FOR THE PROCESS OF PHOTOSYNTHESIS YOU NEED A GREEN PLANT OR A PROTOCTISTA OR A PROKARYOTE. YOU ALSO NEED SUNLIGHT AND WATER .

IN PLANTS, THE PROCESS BEGINS WHEN IT RAINS AND WHEN YOU BREATH ...

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FOR THE PROCESS OF PHOTOSYNTHESIS YOU NEED A GREEN PLANT OR A PROTOCTISTA OR A PROKARYOTE. YOU ALSO NEED SUNLIGHT AND WATER .

IN PLANTS, THE PROCESS BEGINS WHEN IT RAINS AND WHEN YOU BREATH OUT CARBON DIOXIDE. IT TAKES THE CARBON DIOXIDE THROUGH THE LEAVES AND THE WATER THROUGH THE ROOTS OF THE PLANT. THEY THEN MIX TOGETHER IN THE CHLOROPLAST WHERE THE LIGHT IS TRAPPED.

THE MIXTURE OF THE TWO MAKE A SUBSTANCE CALLED GLUCOSE, A SIMPLE SUGAR, AND GIVE OFF OXYGEN SO THINGS CAN BREATH. THEN IT TAKES THE CARBON DIXIODE IN RETURN AND TAKES IN WATER SO THE PROCESS CAN CONTINUE .

PHOTOSYNTHESIS- MEANS PUTTING TOGETHER WITH LIGHT . GREEN PLANTS USE ENERGY FROM LIGHT TO COMBINE CARBON DIOXIDE AND WATER TO MAKE FOOD. LIGHT ENERGY IS CONVERTED TO CHEMICAL ENERGY AND IS STORED IN THE FOOD MADE BY GREEN PLANTS. THE LIGHT USED IN PHOTOSYNTHESIS IS ABSORBED BY A GREEN PIGMENT CALLED CHLOROPHYLL.

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