Final answer:
The statement that lysosomes and peroxisomes are sites of degradation of unwanted materials is true. Lysosomes digest unneeded cellular components, while peroxisomes break down harmful substances using oxygen.
Step-by-step explanation:
Lysosomes and peroxisomes are indeed sites of degradation of unwanted materials, making the statement true. Lysosomes are membrane-bound organelles containing enzymes that break down and digest unneeded cellular components like damaged organelles, as well as external materials such as bacteria ingested by white blood cells. Furthermore, these organelles facilitate autophagy, the process of a cell digesting its own structures.
Peroxisomes, on the other hand, contain enzymes that use oxygen to break down potentially harmful substances, such as fatty acids and amino acids. They also contain catalase, an enzyme that degrades hydrogen peroxide into water and oxygen, thereby detoxifying this potentially harmful byproduct of cellular reactions.
complete question:
lysosomes and peroxisomes are the sites of degradation of unwanted materials. true or false