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anatomy/physiology > characteristics of life > Flashcards

characteristics of life Flashcards

0
Q

responsiveness

A

reaction to change inside or out of the body

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1
Q

movement

A

change in position of the body or a body part

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2
Q

growth

A

increase in body size without change in shape

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3
Q

reproduction

A

production of new organisms and new cells

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4
Q

respiration

A

obtaining oxygen, removing carbon dioxide, releasing energy from food

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5
Q

digestion

A

breakdown of food substances into simpler forms that can be absorbed and used

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6
Q

absorption

A

passage of substances through membranes and into body fluids

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7
Q

circulation

A

movement of substances into body fluids

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8
Q

assimilation

A

changing absorbed substances into chemically different forms

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9
Q

excretion

A

removal of wastes produced by metabolic reactions

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10
Q

water

A

most abundant chemical in the body, transports substances, regulates body temperature

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11
Q

foods

A

provide the body with necessary nutrients. used as energy sources, raw material,

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12
Q

oxygen

A

release energy from food substances, and that energy drives metabolic processes

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13
Q

heat

A

form of energy,product of metabolic reactions, amt of heat determines at what rate they occur

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14
Q

pressure

A

application of force to something

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15
Q

metabolism

A

the sum total of all of the chemical reactions in the body that break substances down and build them up

16
Q

homeostasis

A

stable internal environment

17
Q

homeostatic mechanisms

A

1) receptors- provide info about specific conditions
2) set point- what a particular value should be
3) effectors- cause responses to alter conditions in the internal environment

18
Q

negative feedback

A

effectors that return the set point back to normal

19
Q

positive feedback

A

process that moves conditions away from the set point

anatomy/physiology (8 decks)

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