neuron signals are turned off by...
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acetylcholine leaving receptors, or enzyme take acetylcholine away
nonpolar covalent bond
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electrons are shared equally between two atoms (no charge). when
eletronegativity difference in <.5
Smooth ER
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Makes lipids and breaks down toxins
Quaternary Structure
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The (sometimes) fourth level of protein structure; the shape resulting from
the association of two or more polypeptides/tertiary structures
carbon's valence electrons
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4, needs 4 more
functional group
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atoms or group of atoms that are covalently bonded to the carbon
backbone
lipid bilayer
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forms a barrier to most molecules (ions, polar) except non-
polar things and small things (like water). driven by the need
for water to form h-bonds
Cytoplasm
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fluid (cytosol) and organelles within plasma membrane, contains
cytoskeleton, many proteins and molecules
Voltage-gated channel
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an ion channel that can be opened or closed by voltage CHANGE, ions
don't bind to the channel
Isotonic solution
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, when the cell has an equal concentration of solutes as its surrounding
solution (= water), normal for animal cells
Exergonic Reactions
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Chemical reactions that release energy (energy exits), delta
g is +
Ribosomes
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in cytoplasm, read mRNA (messenger RNA), instruct and synthesize
proteins
resting membrane potential
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charge difference across the plasma membrane, inside vs outside
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acetylcholine leaving receptors, or enzyme take acetylcholine away
nonpolar covalent bond
Give this one a try later!
electrons are shared equally between two atoms (no charge). when
eletronegativity difference in <.5
Smooth ER
,Give this one a try later!
Makes lipids and breaks down toxins
Quaternary Structure
Give this one a try later!
The (sometimes) fourth level of protein structure; the shape resulting from
the association of two or more polypeptides/tertiary structures
carbon's valence electrons
Give this one a try later!
4, needs 4 more
functional group
Give this one a try later!
atoms or group of atoms that are covalently bonded to the carbon
backbone
lipid bilayer
,Give this one a try later!
forms a barrier to most molecules (ions, polar) except non-
polar things and small things (like water). driven by the need
for water to form h-bonds
Cytoplasm
Give this one a try later!
fluid (cytosol) and organelles within plasma membrane, contains
cytoskeleton, many proteins and molecules
Voltage-gated channel
Give this one a try later!
an ion channel that can be opened or closed by voltage CHANGE, ions
don't bind to the channel
Isotonic solution
Give this one a try later!
, when the cell has an equal concentration of solutes as its surrounding
solution (= water), normal for animal cells
Exergonic Reactions
Give this one a try later!
Chemical reactions that release energy (energy exits), delta
g is +
Ribosomes
Give this one a try later!
in cytoplasm, read mRNA (messenger RNA), instruct and synthesize
proteins
resting membrane potential
Give this one a try later!
charge difference across the plasma membrane, inside vs outside
