Cells and Tissues Online Test

Mitochondria are known as the powerhouses of the cell because they generate most of the cell's supply of adenosine triphosphate (ATP) through oxidative phosphorylation.

The spinal cord is a major component of the central nervous system, which is composed primarily of nervous tissue.

Smooth muscle is one of the three types of muscular tissue, found in the walls of hollow organs like the stomach and intestines.

Cartilage is a flexible connective tissue found in many areas of the body, including joints, the rib cage, and the ear.

The brain is the control center of the nervous system and is composed of specialized nervous tissue.

Bone is a specialized form of connective tissue that provides structural support to the body.

Simple squamous epithelium is a single layer of flat cells, which is a type of epithelial tissue.

Blood is considered a fluid connective tissue because it consists of cells suspended in a matrix (plasma).

Nerves are bundles of fibers that transmit impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs; they are nervous tissue.

Cardiac tissue is a specialized form of involuntary muscular tissue found only in the heart.

Simple columnar epithelium is a single layer of tall, rectangular cells that lines the digestive tract and other tubular structures. It is specialized for absorption and secretion, often containing cilia or microvilli to increase surface area. Note the spelling error: 'Coulmnar' should be 'Columnar'.

Pseudostratified epithelium appears to be stratified (many layers) because the nuclei are at different levels, but all cells touch the basement membrane, making it a single layer.

Transitional epithelium is found in organs like the urinary bladder, where it allows the tissue to stretch and change shape as the organ fills.

Transitional tissue is characterized by cells that can change their shape from cuboidal to squamous as the tissue is stretched.

The nucleus contains the cell's genetic material (DNA) and acts as the control center, regulating all cellular activities and functions.

The three main types of muscular tissue are skeletal, smooth, and cardiac. Cartilage is a type of connective tissue, not muscular tissue.

Blood, ligaments, and tendons are all forms of connective tissue. The brain is composed of nervous tissue.

The four main tissue types are epithelial, connective, muscular, and nervous. Tendon is a specific structure made of connective tissue, not a primary tissue type.