isotonic
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neutral
,inversion
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what happens to salts when dissolved in water and what is produced?
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The salt molecules are "torn apart" by the water, and are reduced to
sodium (Na+) and chlorine (Cl-) ions.
define pinocytosis
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engulfs liquids from surrondings
anaphase
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, chromosomes separate and move to centrioles (opposite
ends0
hydrogen bond
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formed between water molecule, attraction between positive end of polar
molecule and negative end of another polar molecule
osteoblasts
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a cell that secretes the matrix for bone formation
function of nuclear envelope
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control substance in and out of nucleus
circumduction
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how does a muscle contraction happen
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Most all muscle contractions begin with a signal called an action potential
along a motor neuron that crosses the synaptic gap at the neuromuscluar
junction and then gets propogated along the sarcoplasmic reticulum and
the T-tubules inside of a muscle cell. This releases calcium so it can attach
to the actin by opening the troponin-tropomyosin attachment sites for the
myosin heads. With the help of ATP, the myosin heads form cross-bridges
to the actin myofilaments and pull the Z-lines closer together which makes
the sarcomeres shorter, thereby contracting the muscle cells
Function of Ribosomes
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synthesize protein
define reactant
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neutral
,inversion
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what happens to salts when dissolved in water and what is produced?
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The salt molecules are "torn apart" by the water, and are reduced to
sodium (Na+) and chlorine (Cl-) ions.
define pinocytosis
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engulfs liquids from surrondings
anaphase
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, chromosomes separate and move to centrioles (opposite
ends0
hydrogen bond
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formed between water molecule, attraction between positive end of polar
molecule and negative end of another polar molecule
osteoblasts
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a cell that secretes the matrix for bone formation
function of nuclear envelope
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control substance in and out of nucleus
circumduction
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how does a muscle contraction happen
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Most all muscle contractions begin with a signal called an action potential
along a motor neuron that crosses the synaptic gap at the neuromuscluar
junction and then gets propogated along the sarcoplasmic reticulum and
the T-tubules inside of a muscle cell. This releases calcium so it can attach
to the actin by opening the troponin-tropomyosin attachment sites for the
myosin heads. With the help of ATP, the myosin heads form cross-bridges
to the actin myofilaments and pull the Z-lines closer together which makes
the sarcomeres shorter, thereby contracting the muscle cells
Function of Ribosomes
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synthesize protein
define reactant
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