8c Flashcards
What does aerobic respiration mean
Respiration with oxygen
How do we get glucose
From carbs in our food
Aerobic resoiration word equation
Oxygen + glucose -> carbon dioxide + water + energy
What is ventillation
Movement of air in and out of the lungs
What does mucus do
Trap dirt dust and microorganisms
What is gas exchange
the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.
Lungs are adapted for gas exchange by having what
700 million little pockets of alveoli
What do fish use for gas exchange
The gills
How do plants release energy
Aerobic respiration
Why is the stomata needed in plants
To allow gases in and out of plants
What is a solution for calcium hydroxide
Limewater
You breathe faster after exercise to replace stores of oxygen in the
Muscles and blood
When you hold your breath which gas will increase in your blood
Carbon dioxide
Dust is prevented from entering the lungs by a layer of mucus which is swept away by
The cilia
Difference between combustion and aerobic respiration
Combustion is faster
What is released during respiration
Energy
During gas exchange in the lungs there is an overral diffusion of
Carbon dioxide into the lung and oxygen into the blood
During inhilation what do the rib and diaphragm do
Contract to reduce the pressure inside the lungs
How is carbon dioxide transported around the body
Dissovled in the plasma
When carbon dioxide is added in limewater what happens
It turns from clear to cloudy
Which substance in anaerobic respiration in humans produce
Lactic acid
Anaerobic respiration happens when
There is a lack of oxygen
Lactic acid is turned back into glucose mainly in the
Lungs
One cause of epoc is
to replace stores of oxygen in the body
Alveol
A small pocket in the lungs which gas is exchanged between the air and the blood
Gas exchange meaning
When a gas is exchanged
What is haemoglobin
The substance that carries oxygen in the red blood cells
Stomata
A tiny hole in the leaf which gases can diffuse into and out of the leaf
Anaerobic respiration
Does not require oxygen
Which resoiration releases more energy
Aerobic
Ways to gas exchange in fish?frogs?plants?humans?
- Gills
- Skin
- Stomata
- Lungs
What does nicotine do
Makes arteries narrower
What does tar do
Can cause alveoli to break apart and reduces surface area
High temperature of smoking
Stops the cilia working on lungs so lungs become dirty and mucus enters the lungs
