The Flow of K⁺ and Cl^- into Guard Cells Is

question 89

Multiple Choice

The flow of K⁺ and Cl^- into guard cells is facilitated by

• A) the absence of light.
• B) the outflow of protons from the guard cells.
• C) osmosis.
• D) negative water potential.
• E) the availability of CO₂.

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Definitions:

Synaptic Vesicles

Synaptic vesicles are small sacs in neurons that store neurotransmitters, which are chemical messengers released during synaptic transmission.

Synapse

The junction between two neurons or between a neuron and a muscle or gland, through which nerve impulses pass.

Axon

A thin, elongated extension of a neuron, or nerve cell, that usually transmits electrical signals from the cell body of the neuron.

Neurotransmitter

Chemical substances in the brain that transmit signals from one neuron to another, influencing various functions such as mood, memory, and movement.