Why Does a Newborn with a Genetic Enzyme Deficiency Have

question 17

Multiple Choice

Why does a newborn with a genetic enzyme deficiency have a normal phenotype at birth?

• A)Metabolism during prenatal life is too slow to require full enzyme activity.
• B)The deficient enzyme's activity was performed by maternal enzymes before birth.
• C)During the fetal phase of life, the newborn was not exposed to the protein that the enzyme is responsible for degrading.
• D)Although the newborn cannot synthesize the enzyme after birth, the initially stored enzyme performs its functions until the level is fully depleted.

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Definitions:

Phospholipids

A class of lipids that are a major component of all cell membranes, known for their bilayer formation that makes up the plasma membrane's structure.

Plasma Membranes

A double layer of lipids that surrounds the cytoplasm of a cell, controlling the entry and exit of materials.

Amino Acids

Organic substances that are fundamental in forming proteins, essential for the body's tissues and organs' structure, function, and regulation.

Bile Salts

Components of bile that aid in the digestion and absorption of fats in the small intestine by emulsifying fats.