Course: Middle school biology > Unit 1. Lesson 2: Cell parts and functions. Cell parts and their functions. Comparing animal and plant cells.

Explore the different types of cells and their organelles with interactive games and videos. Find out how cells look, function, and communicate with each other.

However, all cells have three main parts, the plasma membrane, the cytoplasm and the nucleus. The plasma membrane (often called the cell membrane) is a thin flexible barrier that separates the inside of the cell from the environment outside the cell and regulates what can pass in and out of the cell.

Cell Structure. The cell structure comprises individual components with specific functions essential to carry out life’s processes. These components include- cell wall, cell membrane, cytoplasm, nucleus, and cell organelles. Read on to explore more insights on cell structure and function.

The nucleus is a spherical or oval-shaped structure at the center of the cell. The cytoplasm is the region outside the nucleus that contains cell organelles and cytosol, or cytoplasmic solution. Intracellular fluid is collectively the cytosol and the fluid inside the organelles and the cell nucleus.

A cell is the smallest living organism and the basic unit of life on earth. Together, trillions of cells make up the human body. Cells have three parts: the membrane, the nucleus, and...

Learn how cells and their parts enable complex functions in single-celled and multicellular organisms. Explore examples of bacteria, yeast, amoeba, and neurons, and how they use DNA, ribosomes, organelles, and more.

Learn about the three basic parts of all eukaryotic cells: the cell membrane, the cytoplasm, and the nucleus. Explore the different organelles found in animal and plant cells, and their functions and examples.

Cell structure. Cells are microscopic building blocks of unicellular and multicellular living organisms. Animal, plant, fungal and bacterial cells are different in terms of structure but also...