Grade 10 Biology, Chapter 2, 2.2.3 Cell Organization
Dr. Chit Ye Zaw・3 minutes read
Cells are the fundamental units of organisms, with organelles organizing into cells with unique structures and functions based on molecules. Cell theory states that all living things are made up of one or more cells, with unicellular organisms functioning independently and multicellular organisms having specialized cells grouped into levels of organization from cells to systems.
Insights
- Cells are the fundamental units of living organisms, each containing organelles that contribute to their distinct structures and functions, highlighting the importance of molecular organization within cells.
- The cell theory asserts that all living beings are made up of cells, with unicellular organisms managing all life processes individually, contrasting with multicellular organisms that feature specialized cells working together in a hierarchical system from cells to tissues, organs, and systems.
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Recent questions
What are cells?
Cells are the basic functioning units of organisms, organized into organelles, which then form cells with distinct structures, biochemical compositions, and functions.
What is cell theory?
Cell theory states that all living things are composed of one or more cells, with unicellular organisms performing all life functions independently, while multicellular organisms have specialized cells grouped together to carry out specific functions.
How are multicellular organisms organized?
Multicellular organisms have five levels of organization from cells to tissues, organs, and systems, with specialized cells grouped together to carry out specific functions.
What is the significance of organelles in cells?
Organelles are structures within cells that have distinct functions and biochemical compositions, contributing to the overall structure and function of the cell.
What molecules are associated with specific compartments in cells?
Specific molecules are associated with different compartments within cells, contributing to the biochemical compositions and functions of those compartments.
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Summary
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Cell Theory: Basis of Organism Functionality and Organization
- Cells are the basic functioning units of organisms, organized into organelles, which then form cells with distinct structures, biochemical compositions, and functions, specifying the molecules associated with specific compartments.
- According to cell theory, all living things are composed of one or more cells, with unicellular organisms performing all life functions independently, while multicellular organisms have specialized cells grouped together to carry out specific functions, forming five levels of organization in multicellular organisms from cells to tissues, organs, and systems.
