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11 terms

Ch. 12 Plant Processes

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auxin
An ____________ is a plant hormone that causes plant stems and leaves to grow or bend toward light.
Biotechnology
__________________ is a method of improving crops by moving DNA directly from one organism to another.
day-neutral plant
A _______________ _____________ is a plant that isn't very sensitive to the number of hours of darkness and thus can flower over a wide range of night lengths.
long-day plant
A ____________ _______________ is a plant that requires short nights to flower.
Photoperiodism
________________________ is the flowering response of a plant to changes in the length of day and night.
Photosynthesis
___________________ is the chemical reaction used by producers, such as green plants, to produce food.
Respiration
_____________ is the process by which organisms break down food to release energy.
short-day plant
A ____________ ________________is a plant that requires long nights to flower.
transgenic crop
A ____________________ _________ is a crop of plants that has new DNA inserted into it to improve yield, disease resistance, and so on.
transpiration
___________________ is the loss of water vapor through th estomata of a leaf.
tropism
_______________ is the response of a plant to a stimulus.