Influx of This Ion into the Terminal of the Presynaptic

question 3

Multiple Choice

Influx of this ion into the terminal of the presynaptic nerve mediates neurotransmitter release:

• A) Sodium
• B) Potassium
• C) Calcium
• D) Magnesium
• E) Chloride

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Definitions:

Genes

Units of heredity that carry information from parents to offspring, dictating the development of traits and characteristics.

Nucleotide Base Pairing

The specific hydrogen bonding between adenine and thymine or cytosine and guanine in DNA, fundamental to the structure of DNA and its replication.

Thymine

One of the four nucleobase components of DNA, pairing with adenine (A) in the DNA double helix.

Guanine

One of the four main nucleobases found in the nucleic acids DNA and RNA, known for pairing with cytosine.