Final answer:
Lysosomes contain hydrolytic enzymes (acid hydrolases), which are essential for digesting cellular material and function optimally in the acidic environment maintained inside lysosomes.
Step-by-step explanation:
Lysosomes are specialized organelles within a cell that contain digestive enzymes which aid in breaking down cellular waste, foreign materials, and worn-out organelles. These enzymes are hydrolytic enzymes, or acid hydrolases, which perform hydrolysis reactions that are essential for the degradation process within the lysosome's acidic environment. Among the enzyme classifications listed, hydrolytic enzymes are the type that you would typically find in lysosomes.
The function of these acid hydrolases in lysosomes is to digest macromolecules and to help in the defense mechanisms of a cell, such as in the process of phagocytosis carried out by white blood cells. Lysosomes maintain a lower pH level than the cytoplasm, provided by proton pumps in the lysosome membrane, which is necessary for the optimal activity of the hydrolytic enzymes.
The final answer in two line explanation in 300 words: Lysosomes contain hydrolytic enzymes (acid hydrolases) that digest cellular substances and function optimally in an acidic environment internally maintained at pH around 4.5.