Cells and Tissues

Cell walls are found in plant cells, but not in animal cells.

The cell membrane is selectively permeable, allowing certain substances to pass through while blocking others.

Mitochondria are often called the 'powerhouses of the cell' because they produce most of the cell's energy through cellular respiration.

The Golgi apparatus modifies, sorts, and packages proteins and lipids, and then distributes them to other parts of the cell or outside the cell.

Muscle tissue is responsible for movement and is classified into three types: skeletal muscle, smooth muscle, and cardiac muscle.

Connective tissue provides structural support and protection to organs and tissues, and also helps in binding them together.

Epithelial tissue forms a protective barrier between the internal environment of the body and the external environment.

Nervous tissue is responsible for transmitting nerve impulses, which allow communication between different parts of the body.

Budding is a type of asexual reproduction, not cell division.

Mitosis is responsible for cell growth and repair, producing two genetically identical daughter cells.

Meiosis is responsible for producing gametes (sex cells), which have half the number of chromosomes as somatic cells.

Cell division is not a type of cell differentiation, but rather a process by which cells divide to produce new cells.

Stem cells have the ability to differentiate into various cell types, giving rise to specialized cells with specific functions.

Organ system is a level of organization above tissues, consisting of groups of organs working together to perform a specific function.

An organ system is a group of organs working together to perform a specific function, such as the digestive system or the respiratory system.