Human Respiratory System
Two
How many lungs do humans have?
Oxygen and Carbon Dioxide
What two gases are exchanges in the lungs?
Oxygen
What gas do we need for respiration?
Aerobic respiration
What type of respiration breaks down glucose in the presence of oxygen?
Carry oxygen around the body
What is the main role of red blood cells?
The windpipe that carriers air to the lungs
What is the trachea?
The process where particles move from a high to low concentration gradient.
What is Diffusion?
Inhale
What is it called when breathe in?
A process that releases energy from glucose.
What is respiration?
A protein that helps oxygen bind to red blood cells so it can be transported
What is haemoglobin?
Helps air move in and out of the body by changing chest size
Why is the diaphragm important for breathing?
Capillaries
What blood vessels surround the alveoli?
Small tubes that branches off the bronchi
What are bronchioles?
Energy, carbon dioxide and water
What is produced by cellular respiration?
Part of the blood composed mostly of water. It carries blood cells, nutrients, proteins, and waste products throughout the body.
What is plasma?
The site of gas exchange in humans.
Why are the alveoli important?
What direction does oxygen move during gas exchange?
Breathing moves air in and out, respiration releases energy in cells
What is the difference between breathing and respiration?
In the mitochondria
Where does respiration happen in our cells?
This is why red blood cells do not have a nucleus.
What is so they have more space to carry oxygen?
This change in your body might show that your cells are using more energy.
What is an increase in breathing or heart rate?
The feature of alveoli that is most important for speeding up diffusion and why.
What is their large surface area, which allows for more gas exchange at once?
Moving carbon dioxide out of the body
How does breathing help remove waste gases?
To provide energy for the body
Why do our bodies need glucose?
It transports oxygen to cells and carries carbon dioxide away.
Why is blood important for respiration?