Which cellular organelle helps the cells move?

The cellular organelle primarily responsible for helping cells move is the flagellum. Flagella are whip-like structures that protrude from the surface of some cells and are used for locomotion. In addition to flagella, some cells have cilia, which are shorter, hair-like structures that can also aid in movement, either by propelling the cell forward or by moving fluids and particles across the cell surface. Both flagella and cilia are composed of microtubules arranged in a specific pattern and are powered by motor proteins.

The two body systems that work together to help the body move are the muscular system and the skeletal system.

• The skeletal system provides the framework and support for the body, consisting of bones and joints that form the structure of the body. It also protects vital organs and facilitates movement by serving as attachment points for muscles.

• The muscular system is responsible for generating force and movement through the contraction of muscles. Muscles are attached to bones via tendons, and when they contract, they pull on the bones, causing movement at the joints.

Together, these systems enable voluntary movements (like walking, running, and lifting) and involuntary movements (like the beating of the heart and the digestion of food) through coordination and interaction.

Arteries carry blood away from the heart. They are responsible for transporting oxygenated blood to various tissues and organs in the body (with the exception of the pulmonary arteries, which carry deoxygenated blood from the heart to the lungs for oxygenation). Arteries have thick, elastic walls that help withstand and regulate the high pressure of blood being pumped from the heart.

Veins carry blood toward the heart. They are responsible for transporting deoxygenated blood from the body's tissues back to the heart (except for the pulmonary veins, which carry oxygenated blood from the lungs to the heart). Veins have thinner walls than arteries and often contain valves that help prevent the backflow of blood, ensuring that it moves efficiently back to the heart.

In the lungs, blood absorbs oxygen. When air is inhaled into the lungs, oxygen diffuses across the alveolar walls into the blood in the surrounding capillaries. This oxygenated blood is then transported to the heart and distributed to the rest of the body, where it is used by cells for various metabolic processes. At the same time, carbon dioxide (a waste product of cellular metabolism) is released from the blood into the alveoli to be exhaled.