Which of the Following Metabolites Is NOT a Gluconeogenesis Substrate

question 45

Multiple Choice

Which of the following metabolites is NOT a gluconeogenesis substrate in humans?

• A) pyruvate
• B) lactate
• C) oxaloacetate
• D) acetate

---

Definitions:

Elastin Fibers

Protein fibers found in connective tissue that allow tissues to resume their shape after stretching or contracting.

Hyperextensible Joints

Joints that move beyond the normal range of motion due to loose ligaments, often associated with conditions like Ehlers-Danlos syndrome.

Calcified Matrix

The part of a tissue that has been hardened by the deposition of calcium salts.

Osteoblasts

Osteoblasts are specialized cells responsible for bone formation, playing a critical role in the growth, maintenance, and repair of bone tissue.