Using the Acid Dissociation Constants for Glycine (K_a1 = 4

question 14

Multiple Choice

Using the acid dissociation constants for glycine (K_a1 = 4.6 × 10−³ and K_a2 = 2.5 × 10−¹⁰) ,calculate the [Z]/[C⁺] ratio at pH 8.00.(Z = Zwitterion,C⁺ = fully protonated cation)

• A) 2.2 × 10−⁶
• B) 6.6 × 10−⁴
• C) 2.5 × 10−²
• D) 4.0 × 10¹
• E) 4.6 × 10⁵

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Definitions:

Adenine

A purine nucleobase used in forming nucleotides of the nucleic acids DNA and RNA, involved in cellular energy transfer and signaling.

Thymine

One of the four nucleotide bases of DNA, paired with adenine, and responsible for carrying genetic information.

Guanine

One of the four main nucleobases found in DNA and RNA, which pairs with cytosine and is essential for DNA replication and cellular function.

Polygenic Traits

Characteristics or traits that are influenced by multiple genes rather than a single gene, contributing to the phenotype's complexity.