Golgi Apparatus Overview

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6 Questions

Which organelle is known as the 'Powerhouse of the cell'?

Mitochondria

Where does the accumulation and concentration of secretory products of cell synthesis occur?

Golgi Apparatus

Which organelle contains hydrolytic enzymes to break down proteins and waste materials?

Lysosome

Which organelle is made up of various tubules and cisternae?

Golgi Apparatus

Where does oxidative metabolism occur in a cell?

Mitochondria

Which organelle contains an array of parallel membranes and vesicles without ribosomes?

Golgi Apparatus

Study Notes

Golgi Apparatus

  • Dense aggregations of RNA and protein usually attached to the ER
  • Specialized portion of the endoplasmic reticulum, includes an array of parallel membranes and vesicles without ribosomes
  • Made up of various tubules and cisternae
  • Site of accumulation and concentration of secretory products of cell synthesis
  • Area where substances produced from the ER are modified, concentrated, and prepared for either transport or to be made into vesicles for secretion

Mitochondria

  • "Powerhouse of the cell"
  • Slender rods or filaments enclosed by 2 membranes: outer membrane (smooth) and inner membrane (forms narrow folds to increase surface area)
  • Where oxidative metabolism occurs
  • Contains oxidative enzymes for breaking down glycogen and glucose into water and carbon dioxide
  • Liberated energy is used to synthesize triphosphate (ATP)

Lysosome

  • Contains hydrolytic enzymes that can break down proteins, deoxyribonucleic acids (DNA), and destroy/degade waste materials and foreign antigens
  • White blood cells, which phagocytose antigens, have lysosomes as essential parts of their intracellular digestive system
  • Can fuse with old organelles and cause them to be digested and recycled
  • Produced from the Golgi apparatus and secreted into vesicles
  • Responsible for recycling and defense of the cell

Learn about the Golgi apparatus, a specialized portion of the endoplasmic reticulum responsible for modifying, concentrating, and preparing cell products for transport or secretion. Explore its structure, function, and significance in cell biology.

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