A cell is the basic structural and functional unit of all living organisms. It is the smallest unit of life that can replicate independently, and organisms can be made up of a single cell (unicellular) or multiple cells (multicellular).
Eukaryotic cells: These cells have a true nucleus and membrane-bound organelles. They are more complex in structure and are found in organisms such as plants, animals, fungi, and protists.
Cell Structure
The typical eukaryotic cell consists of several main parts:
Cell membrane: A semi-permeable membrane that encloses the cell and regulates the passage of substances in and out of the cell.
From Molecules to Organisms: Structures and Processes
Students who demonstrate understanding can:
Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms.