Hayat Ashraf

Cells are the basic structural and functional units of life. All living organisms, from single-celled bacteria to complex multicellular organisms like plants and animals, are composed of cells. Here are some key aspects and components of cells: 1. Cell Structure: Cells have a defined structure that allows them to carry out their functions. The typical cell structure consists of the following components:    - Cell Membrane: The cell membrane is a thin, flexible barrier that surrounds the cell. It regulates the passage of materials in and out of the cell, maintaining its internal environment.    - Cytoplasm: The cytoplasm is a gel-like substance that fills the cell. It contains various organelles and is the site of many cellular processes.    - Nucleus: The nucleus is a membrane-bound organelle that contains the cell's DNA. It serves as the control center of the cell, governing its activities and storing genetic information.    - Organelles: Organel...