Transport Systems in Living Things

Red blood cell has a iron-containing protein called ..........................., which gives the cell its colour.

Arteries are blood vessels that transport blood ............... from the heart.

Veins are blood vessels that transport blood .................... the heart.

The exchange of materials like oxygen and carbon dioxide between the blood and tissue cells takes place at the ..................................

• artery

• capillary

• vein

• heart

The heart is divided into 4 chambers, 2 on the left side and 2 on the left. The lower chambers pumps blood out of the heart and they are known as ........................

• atria

• ventricles

• valves

The left ventricle pumps .................... blood to all parts of the body.

• oxygenated

• deoxygenataed

The valves between the atrium and ventricle ensures blood flows in an unidirectional manner by preventing ..................... of blood.

The pulmonary artery transports deoxygenated from the heart to the ....................

When the left ventricle contracts, oxygenated blood is pumped into the ..................

The .................. is the wall that separates the right side from the left side of the heart.

• septum
• mitral valve

• tricuspid valve