The Umbilical Cord Consists of

question 130

Multiple Choice

The umbilical cord consists of

• A) a single vein.
• B) a single artery.
• C) two arteries and one vein.
• D) two veins.

---

Definitions:

NADH

Nicotinamide adenine dinucleotide (reduced form), a coenzyme found in all living cells that plays a critical role in energy production through cellular respiration.

Citric Acid Cycle

A series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats, and proteins into carbon dioxide.

Glucose

serves as a primary source of energy in most organisms, critical for cellular respiration and metabolic processes.

Turn

In a molecular context, a turn refers to a type of secondary structure in proteins where the chain makes a sharp change in direction.