Proton pumps within a cell tend to make the inside of the cell _______ acidic th

Question

Proton pumps within a cell tend to make the inside of the cell _______ acidic than the outside, and the outside of the cell _______ acidic than the inside.

Plants have multiple mechanisms for detecting and responding to touch. Which statement below is best supported by this observation?

Most plant species fold their leaves when touched.

The ability to respond to touch is evolutionarily advantageous.

Pollinators prefer those plants that have rapid movements.

Low-nitrogen soils select for those species that can move.

The ancestors of all plants were able to move.

Explanation / Answer

Proton pumps within a cell tend to make the inside of the cell LESS acidic than the outside, and the outside of the cell MORE acidic than the inside.
Proton pumps exchange intracellular H+ ions for the extracellular cations such as Na+ or K+.
Hence the pH inside the cell increases.

2. Option B is correct.

The ability to respond to touch is evolutionarily advantageous.
It may scare the predators and provide better survival rate.

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