Transport of Substances in Animals & Plants Notes

• The process of transport of substances is very important in a living body.
• This ensures that the different organ systems of the living organism work efficiently.
• The following are some of the substances that need to be transported:
• Food to all the cells where it will be broken down/oxidized for the release of energy.
• Oxygen which is required for the oxidation process.
• Water and minerals which are required for proper functioning of the body of an organism.
• Waste products, formed as a result of life activities, which needs to be removed from the cells and the body.

Transport in Animals:

• The blood is able to flow in the blood vessels due to the pumping of a four-chambered muscular organ called heart.
• It pumps blood to all parts of the body.
• It is able to do so by the rhythmic contractions and relaxations of its muscles. These are known as the heart beats.
• A normal heart beats about 60 to 80 times a minute.
• We can hear our heart beat with the help of an instrument called a stethoscope.

Stethoscope