The Temperature Gradient in the Accretion Disk Surrounding a Protostar

question 39

True/False

The temperature gradient in the accretion disk surrounding a protostar is due in part to the fact that material closer to the protostar has converted less of its kinetic energy into thermal energy compared to materials farther away.

---

Definitions:

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.

Preparatory Reaction

A phase in cellular respiration where pyruvate from glycolysis is converted into acetyl-CoA, enabling the next steps in energy production.

Cellular Respiration

The metabolic process in which cells break down sugars to generate energy in the form of ATP, involving pathways like glycolysis and the Krebs cycle.

Carbon Dioxide

Originating from the combustion of carbonaceous materials and the process of respiration, this gas lacks color and smell. It is a naturally existing element of air that plants use in photosynthesis.