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Questions and Answers
What is the primary function of the cytosol in a cell?
What is the primary function of the cytosol in a cell?
- To provide a fluid medium for biochemical processes (correct)
- To transport organelles
- To store genetic material
- To maintain cell structure
What distinguishes vesicles from other cellular structures?
What distinguishes vesicles from other cellular structures?
- They are involved in energy production
- They are the site of protein synthesis
- They transport or store various compounds (correct)
- They are non-membranous organelles
Which description best fits a peroxisome?
Which description best fits a peroxisome?
- Contains digestive enzymes for breaking down toxic materials (correct)
- Is surrounded by a double membrane
- Stores genetic information
- Contains digestive enzymes for breaking down proteins
What is the role of the centrosome in a eukaryotic cell?
What is the role of the centrosome in a eukaryotic cell?
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How do cilia and flagella differ in structure?
How do cilia and flagella differ in structure?
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Study Notes
Cytoplasm Components
- Fills the space between the nucleus and cell membrane, providing structural support.
- Cytosol is the fluid part of cytoplasm, primarily composed of water and excludes organelles.
Organelles and Their Functions
- Endoplasmic Reticulum: Network of membranes involved in protein and lipid synthesis.
- Golgi Apparatus: Processes, sorts, and distributes proteins and lipids synthesized in the ER.
- Vesicles: Membranous sacs utilized for transporting or storing a diverse range of compounds.
- Peroxisome: Single membrane-bounded organelle containing digestive enzymes that break down toxic substances.
Cytoskeleton
- A network of fibers providing mechanical support, cell shape, and facilitates movement.
Centrosome
- Small, dense region in the cytoplasm that acts as the primary microtubule organizing center, essential for cell division.
Movement Structures
- Cilia: Short, hair-like structures that aid in locomotion and movement of substances across the cell surface.
- Flagella: Longer, tail-like structures that propel eukaryotic cells, providing motility.
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