algae
Plural Noun

(singular: alga) diverse group of aquatic organisms, the largest of which are seaweeds.

ATP
Noun

(adenosine triphosphate) chemical found in most living cells and used for energy.

Plural Noun

(singular: bacterium) single-celled organisms found in every ecosystem on Earth.

Calvin cycle
Noun

series of reactions that take place during photosynthesis, where carbon dioxide and water from the atmosphere are converted into sugar.

carbon dioxide
Noun

greenhouse gas produced by animals during respiration and used by plants during photosynthesis. Carbon dioxide is also the byproduct of burning fossil fuels.

cell
Noun

smallest working part of a living organism.

chloroplast
Noun

part of the cell in plants and other autotrophs that carries out the process of photosynthesis.

electron
Noun

negatively charged subatomic particle.

glucose
Noun

"simple sugar" chemical produced by many plants during photosynthesis.

molecule
Noun

smallest physical unit of a substance, consisting of two or more atoms linked together.

oxygen
Noun

chemical element with the symbol O, whose gas form is 21% of the Earth's atmosphere.

Noun

process by which plants turn water, sunlight, and carbon dioxide into water, oxygen, and simple sugars.

plant
Noun

organism that produces its own food through photosynthesis and whose cells have walls.