Recent Examples of photosynthesis from the Web
On Earth, photosynthesis is based on pigments like chlorophyll, which absorbs blue and red light and appears green to human eyes.
Additionally, capacitance jumped up and down over the 24-hour light cycles, suggesting that capacitance can also detect photosynthesis.
Today, researchers there are working on a new treatment for brain cancer, a way to boost photosynthesis to increase crop yields, and a solution to the growing problem of antibiotic resistance.
Light is essential to photosynthesis, which is how plants feed themselves.
To keep the artificial photosynthesis reaction going at low energies, the Berkeley team turned to a variety of new materials.
Ecologists believe red pigments in deciduous trees act as sunscreen, antioxidants and antifreeze so the trees can hold on to dying leaves longer while absorbing more of the nutrients produced by photosynthesis.
The smoke from the blast site could block out sunlight and hinder life forms at sea that depend on photosynthesis to survive.
Humans have to eat food to get the nutrients that keep us alive, but plants use the sun to power photosynthesis (pronounced fo-toe-SYN-thuh-sis), which turns air and water into delicious, nutritious sugar.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photosynthesis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
photosynthesis Has Greek Roots
The Greek roots of photosynthesis combine to produce the basic meaning "to put together with the help of light". Photosynthesis is what first produced oxygen in the atmosphere billions of years ago, and it's still what keeps it there. Sunlight splits the water molecules (made of hydrogen and oxygen) held in a plant's leaves and releases the oxygen in them into the air. The leftover hydrogen combines with carbon dioxide to produce carbohydrates, which the plant uses as food—as do any animals or humans who might eat the plant.
Origin and Etymology of photosynthesis
First Known Use: 1898See Words from the same year
PHOTOSYNTHESIS Defined for English Language Learners
PHOTOSYNTHESIS Defined for Kids
Definition of photosynthesis for Students
- photosynthetic activity
medical Definition of photosynthesis
Learn More about photosynthesis
Spanish Central: Translation of photosynthesis Nglish: Translation of photosynthesis for Spanish speakers Britannica.com: Encyclopedia article about photosynthesis
Seen and Heard
What made you want to look up photosynthesis? Please tell us where you read or heard it (including the quote, if possible).