WorksheetsBreathing and Respiration
Total questions: 35
Worksheet time: 38mins
What is the process of breathing in also called?
Respiration
Exhalation
Combustion
Inhalation
What is the process of breathing out also called?
Respiration
Exhalation
Combustion
Inhalation
The diagram shows a section through the human thorax. Which part is the ribcage?
A
B
C
D
What occurs during inhalation?
A
B
C
D
The diagram shows parts of the respiratory system.
Which two labelled parts move to cause inhalation?
W and X
W and Z
X and Y
X and Z
Which movements take place inside the chest when a person breathes out?
A
B
C
D
Microscopic sacs where gas exchange takes place; are called:
alveoli
bronchi
villi
What is labeled at E?
bronchi
trachea
pharynx
none of the above
State which of these is the waste gas that is expelled from the body during exhalation.
Sulfur Dioxide
Oxygen
Carbon Monoxide
Carbon Dioxide
Identify what structure is indicated by the blue arrow in the picture.
Abdomen
Pharynx
Trachea
Vocal Cords
Bronchi
Recall two important features of the alveolar wall for gas exchange to occur. Select All correct options.
It is thick
It is thin
It is moist
It is dry
Recall what structure in fish is adapted for gas exchange.
Gills
Fins
Scales
Lungs
Explain the difference between respiration and breathing.
What happens to the volume and pressure in the lungs when we expire (exhale)?
volume and pressure decreases
volume and pressure increases
volume decreases, pressure increases
volume increases, pressure decreases
What do you call this part of the human lung (seen through a microscope)?
air sacs/alveoli
lung cells
capillaries
bronchioles
Which is true about diffusion?
occurs from a higher concentration to a lower concentration
occurs from a lower concentration to a higher concentration
Why does oxygen and carbon dioxide diffuse in the direction shown?
because the inhaled air has less oxygen and less carbon dioxide
because the inhaled air has more oxygen and more carbon dioxide
because the inhaled air has more oxygen and less carbon dioxide
because the inhaled air has less oxygen and more carbon dioxide
Name the structure labelled #8
lungs
trachea
diaphragm
alveoli
What feature of alveoli adapts them to efficient gas exchange?
They have muscles which pump air in and out regularly
Their membranes are more permeable to gases than water
A constant blood supply flows through them
A dense network of capillaries surrounds them
The formula for aerobic respiration is
C6H12O6 + 6O2 ---> 6CO2 + 6H2O
C6H12O6 + 6CO2 ---> 6O2 + 6H2O
6O2 ---> 6CO2 + 6H2O + C6H12O6
6CO2 + 6H2O ---> . C6H12O6 + 6O2
The products of aerobic respiration include CO2 and
water.
oxygen.
glucose.
ADP.
The products of anaerobic respiration in yeast include
ethanol and carbon dioxide.
carbon dioxide and water.
ethanol and oxygen
glucose and water.
The demand for oxygen that builds up during a period of anaerobic respiration in animals is called the
oxygen debt.
oxygen price tag.
oxygen due.
oxygen obligation.
Which is the correct equation for aerobic respiration in humans?
Glucose + Oxygen -> Carbon Dioxide + Water
Glucose + Oxygen -> Carbon Dioxide
Glucose -> Carbon Dioxide + Water
Glucose -> Lactic Acid
Why does anaerobic respiration occur during hard exercise?
There may be insufficient oxygen supplied to the muscle cells
Carbon dioxide builds up in the respiring muscle cells
Anaerobic respiration releases more energy from glucose than aerobic respiration.
Which is the correct equation for anaerobic respiration in humans?
Glucose + Lactic Acid -> Carbon Dioxide + Water
Glucose -> Lactic Acid + Carbon Dioxide
Glucose -> Lactic Acid
Which is the correct equation for aerobic respiration in humans?
Glucose + Oxygen -> Carbon Dioxide + Water
Glucose + Oxygen -> Carbon Dioxide
Glucose -> Carbon Dioxide + Water
Glucose -> Lactic Acid
In terms of energy released from glucose:
Anaerobic respiration releases more tan aerobic respiration
Aerobic respiration releases more than anaerobic respiration.
Aerobic and anaerobic respiration releases about the same amount
After hard exercise, panting allows excess lactic acid to be:
Carried to the liver to be broken down
Broken down to form carbon dioxide and water
Converted into glucose for storage
Energy stored in food is called...
a snack
sugar
calorie
What can do cellular respiration?
plants
animals
plants and animals
Which system carried the gases around your body?
Circulatory system
Skeletal System
Digestive System
