Learning about how cells work—and what happens when they don’t work properly— teaches us about the biological processes that keep us healthy. It also uncovers new ways to treat disease.

all organisms are composed of cells. cell is the structural and functional unit of life, and cells arise from pre-existing cells.

The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.

During development, cells undergo repeated mitosis and division and ultimately differentiate into specialized cells that have structures and functions specific to the needs of each tissue or …

One of the tiny, threadlike, DNA-containing bodies found in the cell nuclei of all plants and animals, responsible for transmitting hereditary characteristics. Small organelles composed of …

Central vacuole - found in plant cells, this vacuole can serve as a large lysosome (a digestive organelle) and may also help the plant cell grow in size by absorbing water.

Theory What is the cell theory? All living things are composed of one or more cells. Cells are organisms’ basic units of structure and function. Cells come only from existing cells.