Photosynthesis Has Greek Roots The Greek roots of photosynthesis combine to produce the basic meaning "to put together with the help of light". Examples of photosynthesis in a Sentence Recent Examples on the Web Plants are green because their leaves contain chlorophyll, a pigment that reflects the green light in the middle of the spectrum while absorbing and using for photosynthesis the blue and red wavelengths at either end of it. First Known Use of photosynthesis , in the meaning defined above. History and Etymology for photosynthesis New Latin.
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Resources for photosynthesis Time Traveler! Explore the year a word first appeared. Dictionary Entries near photosynthesis photostationary photostereograph photosynthate photosynthesis photosynthetic ratio photosystem phototactic. Time Traveler for photosynthesis The first known use of photosynthesis was in See more words from the same year.
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Biology for Kids: Photosynthesis
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Topic rooms within Cell Biology
Take the quiz Name That Thing Test your visual vocabulary with our question challenge! Play the game. Plants need food to respire, grow and reproduce. Unlike animals, plants are able to make their own food by the process of photosynthesis. Photosynthesis takes place in the part of the plant cell containing chloroplasts , these are small structures that contain chlorophyll.
For photosynthesis to take place, plants need to take in carbon dioxide from the air , water from the ground and light usually from the sun.
Here is the word equation for photosynthesis:. Here is the chemical equation for photosynthesis:. Carbon dioxide enters through the stomata on the underside of the leaf. Water is absorbed by the root hair cells and is transported to the leaf by the xylem vessels. Sunlight provides the energy needed for photosynthesis to take place.
What is photosynthesis?
In this process carbon dioxide and water are converted into oxygen a waste product that is released back into the air and glucose the source of energy for the plant. Oxygen is released through the stomata on the underside of the leaf; glucose is transported around the plant in the phloem vessels.
They are green because they contain lots of chlorophyll to absorb sunlight. They have a large surface area to maximise the amount of sunlight they can absorb.
The photosynthetic apparatus
They are thin , allowing easy diffusion of gases into and out of the leaf. They have veins xylem and phloem to allow the transport of water, mineral ions and glucose food. Find out how much you know in this quick science quiz!