18 Questions
What is the main function of mitochondria?
Generating ATP by oxidative phosphorylation
How is the inner membrane of mitochondria specialized for energy production?
It is folded to form cristae
Which stain can be used to visualize mitochondria as fine rods or thread-like structures?
Janus green (green)
What feature distinguishes rough endoplasmic reticulum (rER) from smooth endoplasmic reticulum (sER)?
Presence of ribosomes
Which organelle in the cell can increase its number based on the energy demands of the cell?
Mitochondria
What is the primary source of energy for the cell?
Mitochondria
Where do lysosomes originate from?
Golgi apparatus
Which organelle serves as the digestive apparatus of the cell?
Lysosomes
What is the primary function of lysosomes?
Intracellular digestion
How are primary lysosomes different from secondary lysosomes?
Primary lysosomes have homogenous density, secondary lysosomes have heterogenous density.
What is the fate of residual bodies in active long-living cells?
Accumulate forming lipofuscin pigment
When are lysosomes activated to start autolysis of body cells?
After death
What is the main function of the rough endoplasmic reticulum?
Synthesis of proteins by attached ribosomes
Which organelle is not directly involved in the synthesis of lipids?
Mitochondria
What is the primary function of the Golgi complex?
Processing and packaging of proteins and lipids
Which of the following is not a function of the smooth endoplasmic reticulum?
Synthesis of proteins by attached ribosomes
Which of the following organelles is characterized by a stacked, saucer-shaped structure under an electron microscope?
Golgi complex
Which organelle is responsible for the detoxification of drugs, hormones, and toxins in liver cells?
Smooth endoplasmic reticulum
Learn about the structure and function of mitochondria in a cytology presentation by Dr. Khaled Ragab. Explore how mitochondria are the powerhouse of the cell, their correlation to cellular activity, and their ability to increase in number based on energy demand. Discover how mitochondria appear under light microscopy with specific staining techniques and observe their detailed structure through electron microscopy.
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