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WorksheetsRespiration year 8
Total questions: 30
Worksheet time: 16mins
2 tubes entering the lungs
pharynx
larynx
bronchus
bronchioles
smaller branches in lungs
pharynx
epiglottis
bronchioles
alveoli
exchange of gases
bronchus
alveoli
larynx
pharynx
The correct word equation for aerobic respiration is
carbon dioxide + water (+ energy) → glucose + oxygen
water + oxygen → carbon dioxide + glucose (+ energy)
glucose + oxygen → carbon dioxide + water (+ energy)
glucose + water → carbon dioxide + water (+ energy)
Cellular respiration is
a chemical reaction and NOT the same as breathing
the movement of air in and out of the lungs
not a chemical reaction
During inhalation diaphragm moves
Down
Left
Right
Up
Respiration exchanges which gases between the environment and cells?
oxygen and carbon dioxide
nitrogen and oxygen
carbon dioxide and nitrogen
phosphorus and carbon dioxide
Respiration relies on the process of ______ to move oxygen and carbon dioxide
osmosis
diffusion
active transport
Clusters of air sacs in human lungs where gas exchange takes place
alveoli
pharynx
bronchi
larynx
What does your heart do?
pumps blood through your body
protects your body
helps your exercize
To pump and circulate blood is the work of which organ
Lungs
Liver
Pancreas
Heart
The _______________ are where the oxygen and nutrients are pick up by the blood.
lungs
heart
aorta
vena cava
Your circulatory system uses blood vessels to deliver _________ and nutrients to all the cells in the body and carry ___________ and waste to the lungs.
oxygen and carbon dioxide
carbon dioxide and oxygen
iron and ore
iron and carbon
What is blood made of?
oxygen and plasma
red blood cells and white blood cells
plasma, red blood cells, white blood cells, and platelets.
plasma and platelets
What is the function (job) of the plasma?
To fight infections.
To transport oxygen around the body.
To carry nutrients and sugars around the body.
What is the function (job) of the red blood cells?
To transport oxygen around the body and to the muscles.
To fight infections.
To carry nutrients and sugars around the body.
What is the function (job) of the platelets?
To form clots (i.e. scabs) when you have cuts.
To transport oxygen to the muscles.
To carry dissolved sugars.
To produce antibodies.
What is the function (job) of the white blood cells?
To transport oxygen around the body.
To carry dissolved sugars.
To clot and cover wounds like cuts.
To fight infections.
Which of the following is correct about respiration?
Occurs during day and night
Plant only
Need sunlight
Use carbon dioxide (Carbon dioxide in)
photosynthesis creates and stores energy and cellular respiration releases energy
What happens to the intercostal muscles and diaphragm during inspiration (breathing in)?
Stretch
Relax
Contract
Lengthen
What happens to the ribs during expiration (breathing out)?
Contract
Relax
Move up and out
Move down and in
What happens to the diaphragm during expiration (breathing out)?
Contracts and returns to dome position
Relaxes and flattens
Relaxes and returns to its dome position
Contracts and flattens
Why does air move into the lungs during inspiration?
The volume of the thorax increases, so the thoracic pressure increases above atmospheric pressure, sucking air in
The volume of the thorax increases, so the thoracic pressure drops below atmospheric pressure, sucking air in
The volume of the thorax decreases, so the thoracic pressure drops below atmospheric pressure, sucking air in
The volume of the thorax decreases, so the thoracic pressure increases above atmospheric pressure, sucking air in
