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61 Cards in this Set
- Front
- Back
carries nutrients, hormones, and other substances to and from tissues
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cardiovascular system
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regulates other structures using hormones
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endocrine system
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provides structure and support for the body
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skeletal system
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removes nitrogen containing wastes from the body
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urinary system
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breaks down food and delivers the products to the blood
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digestive system
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returns fluid leaked from the blood to the blood vessels
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lymphatic system
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supplies the tissures with oxygen and removes carbon dioxide
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respiratory system
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cushions and protects deeper tissues
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integumentary system
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body's control system; responds to stimuli
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nervous system
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produces body movements
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muscular system
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primarily to produce offspring
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reproductive system
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all the chemical reactions that occur within body cells
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metabolism
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all the activities promoted by the muscular system
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movement
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all increase in size of a body part or the organism
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growth
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the ability to sense changes in the enviroment and then to respond to them
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responsiveness
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removing wasted from the body
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excretion
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occurs at the cellular or organismal level
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reproduction
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maintaining stable internal conditions
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homeostasis
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the internal enviroment must be separate from the external enviroment
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maintaining boundaries
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is the process of breaking down ingested foodstuffs to simple molecules that can be absorbed into the blood
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digestion
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what are the levels of structural organization?
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atoms, molecules, cell, tissure, organ, organ system, organism
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matter can exist as a liquid, gas, or solid.
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true
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radiant energy travels in waves
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true
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the use and release of energy gives us life.
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true
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hydrogen bonds are extremely strong bonds.
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false
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in polar molecules electrons are shared equally
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false
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the number of electrons determines the type of element
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false
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electrical enery is stroed in food and in eventually converted into kinetic energy.
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false
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the smallest particle of an element that retains the properties of theat element is an ________
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atom
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if an atom of an element has 8 electrons in its outer shell, it is_________
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inert
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atoms of the same element with a different number of neutrons are called ________.
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isotopes
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type of energy that travels in waves
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radiant
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the average of the mass numbers of all of the isotopes of an element
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atomic weight
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an electrically charged atom or group of atoms
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isotope
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negatively charged particle, forming part of an atom
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electrons
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the beating of the heart is controlled by what type of energy?
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electrical
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pedaling a bicycle uses what type of energy?
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mechanical
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the type of energy stored in the bonds of food?
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chemical
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when two or more atoms of the same element combine a ______ is formed.
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molecule
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extremely weak bond found between water molecules.?
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hydrogen bonds
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a substance that cannot be broken down into simpler substances
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element
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anything that has mass and occupies space
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matter
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the ability to do work or put into motion
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energy
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the sum total of protons and neutrons
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atomic mass number
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bond where electrons are shared unequally
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polar molecule
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the number of protons an atom of an element contains
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atomic number
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occures whenever atoms combine with or dissociate from other atoms
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chemical reactions
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bond formed by the complete transfer of an electron to another atom
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ionic bonds
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a molecule where electrons are shared equally
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nonpolar covalent bonds
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the smallest particle of an element
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atom
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list the four elements that make up 96% of your body weight.
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-hydrogen
-oxygen -nitrogen -carbon |
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sodiuim
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Na
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calcuim
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Ca
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carbon
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C
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selium
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Se
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cobalt
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O
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zinc
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Zn
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oxygen
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O
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molybdenum
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Mo
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sulfur
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S
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hydrogen
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H
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