Bio Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| covalent bond | electrons being shared between two atoms to form a molecule
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| hydrogen bond | when a hydrogen atom is part of a polar covalent bond it's partial positive charge allows it to share attractions with other electronegative atoms, such as oxygen or nitrogen. pg. 24
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| cohesion/ cohesive | the sticking together of particles of the same substance. ex: when water sticks to water
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| adhesion/ adhesive | the action or process of sticking to a surface or object. ex: when tape sticks to paper
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| polar | uneven sharing of electrons that causes partial charges
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| hydrophilic | having a tendency to mix with, dissolve in, or be wetted by water
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| hydrophobic | tending to repel or fail to mix with water.
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| non polar | even sharing of electrons to produce neutral (no charge) molecules
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| the six key elements that make up the majority of living tissues | (CHNOPS) carbon, hydrogen, nitrogen, oxygen, phosphorous, sulfur
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| the four major macromolecules found in cells | proteins, nucleic acids, lipids, carbohydrates
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| proteins | "the work horse of the body"
jobs: transportation, movement, structure, immunity
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| nucleic acids | contain the genetic code (DNA)
are passed down to offspring via reproduction
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| lipids | long term energy storage
used to keep bodies warm and are major parts of the cell membrane
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| carbohydrates | short term/ immediate energy source
made by plants and other organisms through photosynthesis
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| biology | the study of life
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| science | the study of the natural world
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| skills of a scientist | 1. observation
2. gather and organize data
3. communicate what you've learned
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| characteristics of life (there are 6) | 1. made of one or more cells
2. reproduce
3. requires energy
4. change, adapt, evolve w/ genetic code (DNA)
5. grow and develop
6. responds to stimuli
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| atom | the smallest bit of matter that retains the properties of an element
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| molecule | a group of two or more atoms held together by covalent bonds
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| bond | an attraction between two atoms resulting from the sharing of outer-shell electrons or the presence of opposite charges on the atoms.
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| macromolecule | a molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer
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| electron | a subatomic particle with a single negative electrical charge
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| proton | a subatomic particle with a single positive charge
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| neutron | a particle that is electrically neutral ( has no electrical charge)
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| property | quality of an element
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| polarity | charged
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| subatomic particle | a particle smaller than an atom
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| solution= | solvent + solute
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| monomer | a molecule that can be bonded to other identical molecules to form a polymer
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| polymer | a substance that has a molecular structure consisting mostly or entirely of a large number of similar units bonded together
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| dehydration reaction | a chemical reaction that involves the loss of a water molecule from the reacting molecule
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| atomic nucleus | the region where the protons and neutrons are
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| if an atom is hydrophobic, why won't it mix with water? | The electrons in the atom are shared evenly making them neutral and unable to mix with water
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| atomic number | is the number of protons
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| number of neutrons= | mass-atomic number
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