5 Questions
What is the composition of thick filaments in microfilaments?
Composed of myosin (12 nm in diameter)
What is the function of free ribosomes?
Synthesis of protein used inside the cell
What gives structural support to the cytoplasm and shapes the cell?
Cytoskeleton
Where are centrioles located in non-dividing cells?
Near the nucleus
What is the function of attached ribosomes?
Synthesis of protein used outside the cell
Study Notes
Microfilaments
- Thick filaments are composed of myosin
Ribosomes
- Free ribosomes function in synthesizing proteins that are released into the cytosol
- Attached ribosomes function in synthesizing proteins that are inserted into membranes or exported from the cell
Cytoplasm and Cell Shape
- Microfilaments (actin filaments) give structural support to the cytoplasm and shape the cell
Centrioles
- In non-dividing cells, centrioles are located near the nucleus and are involved in the formation of cilia and flagella
Test your knowledge about non-membranous cell organelles such as ribosomes and centrioles. Learn about their structure, types, and functions in cellular processes.
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