Cells and Systems #1A

Muscle tissue is responsible for movement by contracting and pulling on tendons.

Red blood cells transport oxygen throughout the body.

Blood plasma carries nutrients to all the cells in the body.

Nerve cells, or neurons, are branched cells that transmit signals throughout the body.

All living things share certain characteristics, such as the ability to grow, reproduce, and respond to their environment.

Smooth muscle is involuntary and found in the walls of internal organs.

Voluntary muscles are controlled consciously (e.g., skeletal muscles), while involuntary muscles operate without conscious control (e.g., cardiac and smooth muscles).

Tendons connect muscles to bones, allowing for movement when muscles contract.

Oxygen is essential for cellular respiration, which produces energy for cellular functions.

Blood plasma is primarily composed of water, electrolytes, proteins, hormones, and waste products.