Which is the cellular organelle used for digestion to recycle materials?

Question

Which is the cellular organelle used for digestion to recycle materials??  
A. The Golgi apparatus  
B. The lysosome  
C. The centrioles  
D. The mitochondria

Accepted Answer

Correct Answer: (B)The lysosome. 
Rationale: The lysosome serves as the cellular organelle used for digestion to recycle materials.Lysosomes are membrane-bound vesicles containing hydrolytic enzymes that function optimally at acidic pH to degrade macromolecules, cellular debris, and engulfed pathogens for component recycling.A) The Golgi apparatusThe Golgi apparatus modifies, sorts, and packages proteins and lipids received from the endoplasmic reticulum for secretion, lysosomal delivery, or plasma membrane insertion. It participates in post-translational processing through glycosylation and phosphorylation but lacks degradative enzymes for material recycling.B) The lysosomeLysosomes contain approximately 60 types of acid hydrolases including proteases, lipases, nucleases, and glycosidases that break down proteins, lipids, nucleic acids, and carbohydrates respectively. They fuse with endocytic vesicles to digest extracellular material, with autophagosomes to recycle damaged organelles through autophagy, and with phagosomes to destroy pathogens. Breakdown products exit into the cytosol for reuse in biosynthesis or energy production.C) The centriolesCentrioles are cylindrical microtubule-based structures that organize the mitotic spindle during cell division and form basal bodies for cilia and flagella assembly. They lack enzymatic content and play no role in intracellular digestion or recycling processes.D) The mitochondriaMitochondria generate ATP through oxidative phosphorylation and regulate apoptosis, calcium signaling, and metabolic intermediates. While they undergo turnover via mitophagy (a lysosome-dependent process), mitochondria themselves do not contain hydrolytic enzymes for macromolecular degradation.Conclusion:Lysosomes function as the cell's primary digestive compartments, enabling both defensive phagocytosis and homeostatic autophagy to maintain cellular health through systematic degradation and recycling of biological materials.

Which is the cellular organelle used for digestion to recycle materials?

A
The Golgi apparatus

B
The lysosome

C
The centrioles

D
The mitochondria

The lysosome serves as the cellular organelle used for digestion to recycle materials.

Related Questions

Which is the cellular organelle used for digestion to recycle materials?

A The Golgi apparatus B The lysosome C The centrioles D The mitochondria

The lysosome serves as the cellular organelle used for digestion to recycle materials.

Related Questions

A
The Golgi apparatus

B
The lysosome

C
The centrioles

D
The mitochondria