Biology, 10.12.2021 22:00 elijahbravo2819
In order for a muscle cell to contract, sodium ions (Na+) must be removed from
the cell and potassium ions (K+) must enter the cell. Both of these lons travel
against the cell's concentration gradient. This process is most likely achieved
througn-
A. Simole diffusion across the cell membrane using no energy
b. A channel protein using no eneray
C. A protein pump using energy
d. A channel protein using energy
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Answers: 3
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If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly
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When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?
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In order for a muscle cell to contract, sodium ions (Na+) must be removed from
the cell and potass...
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