Biology chapter 3 movement in and out of cells: Transmission of impulses relies on the flow of ions through the cell membranes of neurones down their concentration gradients. Active transport is responsible for maintaining the concentration gradients of ions across the membranes of neurones.
Explain how ions are moved across membranes by active transport.

Question

Transmission of impulses relies on the flow of ions through the cell membranes of neurones down their concentration gradients. Active transport is responsible for maintaining the concentration gradients of ions across the membranes of neurones.
 Explain how ions are moved across membranes by active transport.

Sueanne · Accepted Answer

involves, proteins / carriers / pumps (in neurone membrane) ;
(named) ion(s) bind to, proteins / carriers / pumps, to move ions / AW ;
move ions, against concentration gradient / from low to high
concentration ;
using energy ;
AVP ; e.g. change in shape of carrier (protein)

Biology chapter 3 movement in and out of cells

Involves, proteins / carriers / pumps (in neurone membrane) ; (named) ion(s) bind to, proteins / carriers / pumps, to move ions / AW ; move ions, against concentration gradient / from low to high concentration ; using energy ; AVP ; e.g. change in shape of carrier (protein)

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