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Worksheets8C Breathing and Respiration
Total questions: 20
Worksheet time: 10mins
What is released during respiration?
energy
food
air
glucose
Respiration is aerobic if it requires
carbon dioxide
energy
oxygen
lungs
Which of these is the correct word equation for respiration?
glucose + oxygen → carbon dioxide + water
carbon + dioxygen → glucose + oxygen
glucose → energy
oxygen + carbon → carbon dioxide
During inhalation, rib and diaphragm muscles:
contract to increase the pressure inside the lungs.
relax to reduce the pressure inside the lungs.
contract to reduce the pressure inside the lungs.
relax to increase the pressure inside the lungs.
On the diagram, the part labelled X is the:
blood vessel
oesophagus
trachea
bronchus
Dust is prevented from getting into the lungs by a layer of mucus, which is swept away by:
alveoli
cilia
filaments
flagella
A poisonous substance in cigarette smoke
stops red blood cells carrying oxygen. This
substance is called:
tar
nicotine
water vapour
carbon monoxide
Anaerobic respiration can occur in a cell if
there is a lack of:
oxygen
water
glucose
nitrogen
During gas exchange in the lungs, there is overall diffusion of:
carbon dioxide into the lung and oxygen into the blood.
oxygen into the lung and carbon dioxide into the blood.
oxygen and carbon dioxide into the blood.
oxygen and carbon dioxide into the lung.
The main difference between combustion and aerobic respiration is that:
only combustion releases energy by heating
only respiration produces carbon dioxide
only respiration produces water
combustion is much faster
Heart disease is caused by:
the heart growing too big
blood vessels leading to the heart muscle becoming blocked.
eating too much, which causes the stomach to push up on the heart.
being allergic to a certain substance
The drawing shows the underside of a leaf. What are the parts labelled X called?
guard vessels
alveoli
stomata
cilia
How is carbon dioxide transported around the body?
carried on red blood cells
as a gas
carried on white blood cells
dissolved in blood plasma
For each molecule of glucose, how much energy does anaerobic respiration release compared with aerobic respiration?
no energy
more energy
the same amount of energy
less energy
During strenuous exercise:
the pulse rate increases so that oxygen can get to cells faster for respiration.
the pulse rate decreases to stop so much carbon dioxide getting to cells.
the pulse rate increases so that carbon dioxide can get to cells for respiration.
the pulse rate decreases so less carbon dioxide can get into the blood from respiring cells.
Aerobic respiration in plants:
is the same as in animals
does not occur (plants use photosynthesis)
does not use glucose
does not use oxygen
When carbon dioxide is added to lime water:
the limewater turns from cloudy to clear
the limewater turns from clear to cloudy
the limewater turns green
nothing happpens
One cause of excess post-exercise oxygen consumption is:
an increased rate of anaerobic respiration after exercise.
aching muscles
replacing stores of oxygen in the body
being thirsty
Which substance does anaerobic respiration in humans produce?
water
lactic acid
carbon dioxide
carbon monoxide
Which organ do fish use for gas exchange?
lungs
skin
gills
mouth
