OXYGEN

What is oxygen used for in our bodies?

How does oxygen reaches the organs?

Cellular respiration: glucose is broken down + oxygen = energy to the cell/ATP = CO2 + H2O get out

There are two types of respiration:

Aerobic respiration:

Anaerobic respiration:

Uses oxygen

Glucose breaks down

It happens in the Cytosol and Mitochondria

High energy is released

CO2 and H20 get out

Doesn't use oxygen

Glucose breaks down

Low energy is released

It happens in the Cytosol

Lacid acid - muscle cells

Plants and fungi have anerobic respiration

There are two main systems involved:

Circulatory system

Respiratory system

Diagram and parts

diagram cs

What it does?

Diagram and parts

dr

What it does?

Sources

Gets out oxygen from the air into the lungs

Deliver company used by the organs to transport:

Nutrients

Oxygen

Carbon dioxide

Metabolic wastes

Deliver nutrients and oxygen to the cells

Pumped blood to all the body

Transport blood though the body

Power Point presentation cycle 13

How it does?

Help us to breathe

Chemical reaction that happens inside every living cell

How it does?

From one part of the body, to another

Gets rid of carbon dioxide

Gas exchange

Deoxygenated blood (venus blood) passes trough the blood stream, releasing carbon dioxide

Then the oxygen oxygenate the blood and it gets to other parts of the body

This process happens thanks to the DIFFUSION

And appears in the Alveoli

Veins carry blood to the heart

Then arteries take blood out of the heart

Which makes that the heart beats or pumps