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Biology

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photosynthesis
the process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches.
cellular respiration
the process by which cells use oxygen gas to break down carbohydrates, releasing chemical energy that the cell can use
autotroph
organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer
heterotroph
organism that obtains energy from the foods it consumes; also called a consumer
glucose
the form of sugar that circulates in the blood and provides the major source of energy for body tissues
C6H12O6
the chemical formula for glucose
stomata
the small openings on the undersides of most leaves through which oxygen and carbon dioxide can move
chloroplast
organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy
chlorophyll
green pigment in plants that absorbs light energy used to carry out photosynthesis
mitochondria
the cells powerhouse, turning food into energy; the organelle where cellular respiration takes place.
pigment
a colored chemical compound that absorbs light
fermentation
the process by which cells break down carbohydrates to release energy without using oxygen
lactic acid
waste product produced by fermentation; causes muscles to be sore