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Plant Processes

Plant Processes and Tropisms

TermDefinition
chlorophyll a green pigment found in the chloroplasts that absorbs light energy.
chloroplasts organelles in plant cells that carry out photosynthesis.
dormancy a period of time when the growth or activity of a plant or seed stops due to changes in temperature or amount of water.
Gravitropism the way a plant grows or moves in response to gravity; also called geotropism.
guard cells cells located on the undersides of leaves that control when stomata open and close.
hydrotopism the way a plant grows or moves in response to water.
photosynthesis the process by which plants capture light energy and use it to make their own food.
phototropism the way a plant grows or moves in response to light.
mitchondria organelles in plant and animal cells that carry out respiration.
respiration the process by which plants and animals break down sugar to obtain energy.
stomata small openings on the underside of most leaves through which oxygen and carbon dioxide can move.
thigmotropism the way a plant grows or moves in response to touch.
transpiration the process by which plants lose water through their leaves.
tropism a plant’s response to changes in its environment.
Created by: crunchyteacher
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