The digestion of proteins by lysosomes is dependent on:
Low pH and hydrolytic enzymes is the scientifically accurate answer to this question. Within the study of Protein Degradation, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of Low pH and hydrolytic enzymes directly address what is being asked. Among the other options, ATP hydrolysis, High temperature, and Ubiquitination do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 4