Greater Depolarization of the End Foot of Certain Glial Cells

question 55

Multiple Choice

Greater depolarization of the end foot of certain glial cells in response to neuron stimulation suggests that there is a higher concentration of

• A) AQP4 channels in the end foot.
• B) of calcium channels in the end foot.
• C) potassium ions in the end foot.
• D) axons near the end foot.
• E) potassium channels in the end foot.

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Definitions:

Evolutionary Advantage

A trait that increases an organism's likelihood of survival and reproduction in a particular environment.

Haploid

Referring to a cell or nucleus containing a single set of unpaired chromosomes, as seen in gametes (sperm and egg cells) of sexually reproducing organisms.

Meiosis

is a type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell.

Chromosome Segregation

The process during cell division in which chromosomes are equally distributed into two new nuclei, ensuring each daughter cell receives an identical set of chromosomes.