Respiration Flashcards
The diaphragm muscle contracts and ………….
Moves down
Bell jar experiment inflate
Rubber sheet pulled down Increases volume in bell jar Cause pressure of air in bell jar decrease Air move from high to low pressure Air enter balloon
The rib muscles contract and the rib cage ……….
Expands (it moves up and out)
Bell jar experiment - exhale
The sheet pushed up Pressure of bell jar increase Volume of bell jar decrease Air move high to low pressure Air leaves balloons
The chest is bigger so the air pressure in the lungs will be
Low
The diaphragm muscle relaxes and
Moves up
The rib muscles relax and the rib cage
Contracts
The chest is smaller so the air pressure in the lungs will be
High
What do you use in the smoking machine
Cigarette Air bleed Cotton wool U tube Vacuum pump
Right side of heart is
Deoxygenated blood
Left side of heart is
Oxygenated blood
Arteries take blood…….. From the heart
Away
Veins take blood ………. the heart
To
Name the four chambers in the heart
Left atrium, right atrium, left ventrical, right ventrical
Which chamber has the thinnest walls
The atrium
Which chamber has the thickest walls
Ventricle (left)
Why does the left ventricle need thick walls
To pump blood around the body
What do valves do
Stop the back flow of blood
Which type of blood vessel carry blood to the heart
Veins always carry to the heart
Which type of blood vessels carries blood away from the heart
Arteries
Arteries usually carry oxygenated blood. Which artery is an exception to this
Pulminary artery
Which vein is different
The Pulminary vein
What is the coronary artery and what happens if it becomes blocked
It provides oxygen to the heart muscle and if blacked will cause a heart attack
What is respiration and where does it take place
Energy from glucose in the muscles
Respiration when the body is at rest
Aerobic
As you excersise you breathe harder and harder and deeper and the heart beats ……. To get ……….. To the muscles
Faster
Oxygen
When excersising very hard, the ……… Cannot get enough oxygen to the muscles
Heart
What is anaerobic respiration
When excersising very hard, the heart cannot get enough oxygen the muscles
What is the equation for anaerobic respiration in muscle
Glucose -> lactic acid + energy
Which type of respiration releases more energy
Aerobic
Equation for anaerobic respiration in yeast
Glucose -> ethanol + carbon dioxide + energy
Why is lactic acid harmful
It’s toxic
What effect does lactic acid have on the body
It builds up in your body
What respires
All living things
How is oxygen used in respiration
It is used up
What is glucose in respiration
Used up
What is carbon dioxide in respiration
Produced
What is water in respiration
Produced
What is the purpose of respiration
To produce energy
What is respiration
A chemical reaction in all cells
Is breathing and respiration the same
No
Equation for respiration
Oxygen + glucose -> carbon dioxide + water + energy
respiration
Need oxygen Need fuel Produce carbon dioxide and water as waste Energy released Take place in cells
Network of capillaries
Gases can easily pass through blood
What is present in breathing out
Greater quantity
Water vapour
Carbon dioxide
Present in breathing in
Oxygen
Smaller quantity
Exhaled air has a ……… temperature then air we breathe in because …….. .in the form of ……….. is ………… in respiration
Higher
Energy
Heat
Released
Oxygen enters the blood in the …….
Body cells
Carbon dioxide enters the blood in
Body cells
Oxygen leaves the blood in the
Body cells
Carbon dioxide leaves the blood in the
Lungs
We breathe faster why?
Because respiration is happening at a faster rate and more heat is given off
During intensenphysical activity what happens?
The blood cannot supply enough oxygen for the cells’ needs so you get anaerobic respiration
Our heart beats faster
In order to take in oxygen more quickly
We feel hotter.
In order to take oxygen to the cells more quickly
What is the same about plant and animal respiration
Oxygen is used up Breathe with lungs Give out water vapour Give out heat as respire Blood to carry oxygen
Step 1-4
- The diaphragm muscle contracts and moves down
- The rib muscles contract and the rib cage expands (moves up and out)
- the chest is bigger so the air pressure in the lungs will be reduced
- air enters the lungs
Steps 1-4 exhaling
- The diaphragm relaxes and moves up
- the rib cage muscles relax and the rib cage gets smaller (down and in)
- the chest is smaller so the air pressure in the lungs will be higher
- air leaves the lungs
Bell jar exhaling
- the rubber sheet is pushed up
- this decreases the volume inside the bell jar
- the pressure inside the bell jar increases
- air moves from high pressure to low pressure
- so air leaves the balloon
When exercising why do we breath faster
In order to take in oxygen more quickly
In excersise why do our hearts beat faster
In order to take oxygen to the cells more quickly
Why in excersise do we feel hotter
Because respiration is happening at a faster rate and more heat is given off
