186k views
4 votes
Which organelle contains digestive enzymes that break down waste material and debris in the cell? lysosome ribosome mitochondrion chloroplast

User Semiflex
by
6.3k points

2 Answers

2 votes

Answer:

Lysosomes

Step-by-step explanation:

Disintegrator bodies, or lysosomes, are spherical organelles with membranous membranes and active hydrolytic (digestive) enzymes. Lysosomes are huge and plentiful in phagocytes, the cells that eliminate invasive germs and cell debris, as one might expect. Nearly all types of biological compounds can be broken down by lysosomal enzymes. They are known as acid hydrolases because they function best in acidic environments. In two crucial ways, the lysosomal membrane has been modified to support lysosomal activities. In order to maintain the acidic pH of the organelle, it first has H+ (proton) "pumps," which are ATPases that collect hydrogen ions from the surrounding cytoplasm. Second, it keeps the harmful lysosomal enzymes (acid hydrolases) while allowing the digestive end products to escape so that the cell may utilise them or excrete them. Thus, lysosomes offer locations within a cell where digestion may happen safely.

Lysosomes serve as the "demolition crew" of a cell by:

  • metabolizing endocytosed particles, notably poisons, viruses, and bacteria
  • Degrading worn-out or dysfunctional organelles and stressed or dead cells, a process more formally known as autophagy ("self-eating")
  • carrying out metabolic processes including glycogen release and breakdown
  • releasing calcium ions into the blood by breaking down bone

The lysosomal membrane is typically relatively stable, but when the cell is harmed, is oxygenated insufficiently, or has an excessive quantity of vitamin A present, it becomes brittle. Autolysis is the process by which lysosomes burst, causing the cell to devour itself.

User Brahim Boulkriat
by
5.7k points
1 vote

(A.) Lysosome

Have a great day and hydrate! <3

User Goowik
by
5.9k points