How Were Extracellular Ion Concentrations Manipulated in the Experiments Supporting

question 49

Multiple Choice

How were extracellular ion concentrations manipulated in the experiments supporting the theory of quantal release of neurotransmitters?

• A) Ca²⁺ was increased in the extracellular fluid so that action potentials would release many vesicles.
• B) Ca²⁺ was absent in the extracellular fluid so that action potentials would release no vesicles.
• C) Mg²⁺ replaced Ca²⁺ in the extracellular fluid so that action potentials would release few vesicles.
• D) Mg²⁺ replaced Ca²⁺ in the extracellular fluid so that action potentials would release many vesicles.

Discern the influence of genetics and environmental factors on physical and cognitive development.

Understand the relationship between mental states and behavior in preschoolers.

Grasp the concept of the origins of knowledge in the context of a theory of mind.

Comprehend the factors influencing memory development in early childhood.

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