Gas Exchange Flashcards
What is cellular respiration
When cells break down food molecular to produce energy for the cells to function
The equation of aerobic respiration
Glucose+oxygen - Carbon dioxide+water+energy
Why do we need energy
Keeping warm/Mantain body temp, warm blooded animals
Movement
Chemical reactions, building larger meloculars from smaller
When your breathing in, what happens to the pressure, diaphragm, rib cage and volume
The diaphragm contracts
Pressure decreases
Rib cage moves out and up
Volume increases
When your breathing in, what happens to the pressure, diaphragm, rib cage and volume
The diaphragm releases
Pressure increases
Rib cage contracts
Volume decreases
The process of breathing
Nose Pharynx Larynx, voice box Trachea, wind pipe Bronchus or for plural bronchi Bronchiole Alveoli
How is the trachea adapted
It has mucus and hairs to stop food from going in rings of cartilage to prevent the trachea from collapsing during inhalation
How is alveloi adapted
One cell thick
Large surface area
Covered in capillaries
What is alveoli
Tiny air sacs that transfer oxygen to the cells
What is Anaerobic respiration
When the body does not have enough oxygen to do aerobic respiration
What is the equation for anaerobic respiration
Glucose - lactic acid + energy
Factors of anaerobic respiration
The lactic acid builds up causing a stitch
When we respire anaerobically we go into oxygen debt, we need oxygen to get rid of lactic acid
PROVIDES LESS ENERGY, because its an incomplete breakdown of glucose
Only happens during exercise when you cant take in enough oxygen
Anaerobic respiration in plants and yeast
Glucose - ethanol+carbon dioxide+energy
Factors of anaerobic respiration
No oxygen needed
Anaerobic respiration
In yeast is called fermentation
Process of aerobic respiration
- You inhale oxygen
- Alveoli takes the oxygen to the capillaries
- Heart pumps the oxygen to all the cells around the body then the blood becomes deoxygenated
- deoxygenated blood goes back to the lungs
- And the cycle repeats
