Biology
What makes blood more than just a red liquid?
Quick fact
Blood carries oxygen, nutrients, hormones, immune cells, and waste products throughout the body.
Why this is interesting
Every second, your blood is performing thousands of invisible tasks that keep you alive.
Read the full explanation
Understanding What makes blood more than just a red liquid?
Blood is a complex tissue made of cells and plasma that supports transport, defence, and repair.
A deeper explanation
Blood connects almost every system in the human body. Red blood cells transport oxygen, white blood cells defend against threats, platelets repair injuries, and plasma carries essential molecules needed for survival.