Biology, 24.07.2019 21:00 novelty3650

Identify one way in which organisms maintain concentration gradients across membranes

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Answer from: nancyo

I think the answer is by use of ion channels. The ion channels that are selective to only a certain ions, such as sodium and potassium ions. Transmembrane proteins actively push ions across the membrane and establish concentration gradients across the membrane, and ion channels allow ions to move across the membrane down those concentration gradients.

Answer from: jjjjjjjbvhnchjkj

Active transport by membrane pumps

Explanation:

Membrane pumps are the transmembrane proteins that span the membrane and are involved in the active transport of substances across the membrane against their concentration gradient using the energy. These membrane pumps have two binding regions. One binds to the substance to be transported and the other serves as a binding site for ATP. ATP serves as an energy source to trigger the conformational change in the membrane pump to facilitate the transport of the bound substance across the membrane.

For example, the sodium-potassium pump in the membrane of neurons pumps to three sodium ions out of the axon and allows entry of two potassium ions into the cell. It serves to maintain the resting membrane potential with the outside of the membrane being positive as compared to the inside which is negative.

Answer from: Quest

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.

Answer from: Quest

Where are the following

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Identify one way in which organisms maintain concentration gradients across membranes...

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