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Chapter 11 Vocabulary

auxin plant hormone that causes plant leaves and stems to exhibit positive phototropisms
chlorophyll green, light-trapping pigment in plant chloroplasts that is important in photosyntheis
day-neutral plant plant that doesn't require a specific photoperiod and can begin the flowering process over a range of night lengths
long-day plant plant that generally requires short nights-less than 10-12 hours of darkness-to begin the flowering process
photoperiodism a plant's response to the lengths of daylight and darkness each day
photosynthesis process by which plants and many other producers use light energy to produce a simple sugar from carbon dioxide and water and give off oxygen
respiration process by which producers and consumers release stored energy from food molecules; series of chemical reactions used to release energy stored in food molecules
short-day plant plant that generally requires long nights-12 or more hours of darkness-to begin the flowering process
stomata tiny openings in a plant's epidermis through which carbon dioxide, water vapor, and oxygen enter and exit
tropism positive or negative plant response to an external stimulus such as touch, light, or graviity
Created by: jrobertson1