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suppose you are studying the transport of a certain polar molecule across the plasma membrane of cells in a lab. over a period of time, you measure the concentration of a polar molecule inside and outside of the cells. you find that the concentration of the molecule is higher in the cell and is gradually increasing. you also measure the atp concentration inside the cell and find that it is decreasing. which of the following is probably responsible for the transport of this polar substance into the cell?

Respuesta :

Polar molecules are those that have one end that is a little bit positive and one end that is a little bit negative. When it comes to polar molecules, the covalent bond's electron distribution is uneven.

Therefore, polar and charged molecules including ions, amino acids, nucleosides, and carbohydrates can traverse the plasma membrane due to facilitated diffusion. Carrier proteins and channel proteins are the two main groups of proteins that mediate assisted diffusion.

Both active and passive transport mechanisms are used to move molecules across the membrane. In active transport, molecules go across the membrane in opposition to the concentration gradient, which is a change from one concentration to another.

Both active and passive transport is used to move the polar molecules across the membrane. Only polar proteins can the polar molecule connect to. The polar character of the channel proteins found in the cell membrane aids in the movement of polar molecules across the membrane. Depending on the chemicals they need to convey, these channel proteins alter their form. The polar molecules control the gated system, which the channel proteins employed to open and close.

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