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The process of converting food into a usable soluble form so that it can pass through membranes in the digestive tract and enters the body
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Digestion
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The passage of nutrient molecules through the lining of the digestive tract into the body proper. Absorbed molecules pass through cells lining the digestive tract by diffusion or active transport."
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Absorption
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The circulation of essential compounds required to nourish the tissues and the removal of waste products from the tissues
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Transport
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The consumption of oxygen by the body.Cells use oxygen to convert glucose into ATP, a ready source of energy for cellular activities.
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Respiration
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The building up of new tissues from digested food materials
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Assimilation
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The removal of waste products (such as carbon dioxide, water, and urea) produced during metabolic processes like respiration and assimilation
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Excretion
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The creation of complex molecules from simple ones (anabolism)
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Synthesis
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The control of physiological activities
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Regulation
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The body's metabolism functions to maintain its internal environment in a changing external environment, includes regulation by hormones and the nervous system.
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Homeostasis
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The ability to respond to a stimulus and is part of regulation
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Irritability
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An increase in size caused by a synthesis of new materials
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Growth
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The process by which plants converting CO2 and H2O into carbohydrates. sunlight is harnessed by chlorophyll to drive this reaction.
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Photosynthesis
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The living content of a cell
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Protoplasm
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The unit of an element
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The Atom
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The unit of a compound
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The Molecule
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