Iron helps red blood cells carry oxygen.

Meaning: Iron is important for red blood cells to carry oxygen throughout the body.

Choice of Words: Iron is a mineral that is essential for the body's health. Helps means to provide assistance or support. Red is a color, in this case referring to the type of blood cells. Blood is a fluid that circulates in the body, carrying oxygen and nutrients to cells. Cells are the basic units of life in an organism. Oxygen is a gas that is essential for life.

Alternative Expressions

Red blood cells need iron to carry oxygen.

Meaning: This sentence means that red blood cells need iron in order to carry oxygen from our lungs to the rest of our body.

Choice of Words: **Red blood cells** are tiny cells in our blood that carry oxygen. **Need** means to require something in order to function properly. **Iron** is a metal that is important for our bodies. **Carry** means to take something from one place to another. **Oxygen** is a gas that we need to breathe in order to live.

Oxygen is carried by red blood cells with the help of iron.

Meaning: This sentence means that oxygen is taken from our lungs to the rest of our body by red blood cells, which need iron to do this.

Choice of Words: **Oxygen** is a gas that we need to breathe in order to live. **Carried** means to be taken from one place to another. **Red blood cells** are tiny cells in our blood that carry oxygen. **With the help of** means that something is done with the assistance of something else. **Iron** is a metal that is important for our bodies.

Related Expressions