Podcast
Questions and Answers
Which organelle is known as the 'Powerhouse of the cell'?
Which organelle is known as the 'Powerhouse of the cell'?
Where does the accumulation and concentration of secretory products of cell synthesis occur?
Where does the accumulation and concentration of secretory products of cell synthesis occur?
Which organelle contains hydrolytic enzymes to break down proteins and waste materials?
Which organelle contains hydrolytic enzymes to break down proteins and waste materials?
Which organelle is made up of various tubules and cisternae?
Which organelle is made up of various tubules and cisternae?
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Where does oxidative metabolism occur in a cell?
Where does oxidative metabolism occur in a cell?
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Which organelle contains an array of parallel membranes and vesicles without ribosomes?
Which organelle contains an array of parallel membranes and vesicles without ribosomes?
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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
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Description
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.
