Dopa Is Converted into Dopamine by the Enzyme:
A) Tyrosine $\beta$

question 64

Multiple Choice

Dopa is converted into dopamine by the enzyme:

• A) tyrosine hydroxlase.
• B) dopa decarboxylase.
• C) dopamine \(\beta\)-hydroxylase.
• D) dopa synthase.

---

Definitions:

Electron Transport Chain

A series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.

Cristae

Short, fingerlike projections formed by the folding of the inner membrane of mitochondria.

Mitochondria

Organelles within cells that produce energy through the process of cellular respiration, often referred to as the powerhouses of the cell.

Matrix

A matrix refers to the intercellular substance or material, often comprising proteins and fluids, in which cells or particles are embedded in tissue or culture media.