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Force/Motion/Homeost

7.7B/7.13AB Homeostasis+Organism Force/Motio

TermDefinition
STIMULUS Action or condition that provokes a response.
RESPONSE Change in a system resulting from a stimulus.
HOMEOSTASIS Tendency of an organism or cell to maintain a balanced state so as to maintain health and function.
PATHOGEN Microorganism or virus that can cause disease.
FIGHT-OR-FLIGHT Short-term physiological changes in response to stress that prepare the body for intense activity to avoid harm.
TROPISM Turning or bending movement of living organisms toward or away from an external stimulus, such as light, gravity, touch, water, etc.
PHOTOTROPISM Response of a plant to grow toward or away from light.
GRAVITROPISM/ GEOTROPISM Plant’s growth in response to the force exerted upon it by gravity.
FORCE Push or pull that can change the motion of an object.
MOTION Change in an object's position with respect to time & in comparison to the position of other objects used as reference points.
GERMINATION Process by which a plant grows from a seed, a.k.a. seedling emergence.
VACUOLE Organelle in cell cytoplasm; functions to store water, nutrients, & wastes; 1 large central unit in plant cells, several small units in animal cells.
TURGOR PRESSURE Force of water molecules against the cell wall that allows plants to stand up straight; "turg = swollen."
TROPISM Turning of all or part of an organism in a particular direction in response to an external stimulus, e.g. gravity, light, water, touch, heat, etc.
PHOTOTROPISM Orientation of a plant or other organism in response to light, either toward or away from the source of light; "photo = light."
HYDROTROPISM Growth or turning of plant roots toward or away from moisture; "hydro = water."
GEOTROPISM/ GRAVITROPISM Plant’s growth in response to the force exerted upon it by gravity; "geo = earth" & "gravi = gravity."
WILT Become limp or droopy due to heat, loss of water, or disease.
TURGID State of plant cells when their vacuoles are filled with water, causing the plant leaves to stand upright; "turg = swollen."
BLOOD Liquid that circulates through the body carrying nutrients, oxygen, & waste products.
HEART Muscular organ that pumps blood through the circulatory system.
BLOOD VESSELS Structures that carry blood through the tissues & organs in a body; veins & arteries.
CIRCULATION Movement around something, especially that of fluid in a closed system; "circ = ring."
BLOOD PRESSURE Pressure of blood in the circulatory system; measured for diagnosis due to close relation to the force & rate of the heartbeat.
Created by: trauberk
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