Q.1
When we exhale which one of the following is NOT correct?
  • The volume of the thorax decreases
  • The air is forced out of the lungs
  • The diaphragm relaxes
  • The rib muscles contract
Q.2
Cellular respiration occurs in .......
  • only cells in the arms and legs
  • only heart cells
  • only muscle cells
  • all cells
Q.3
Which of the following is NOT true about the effect of exercise?
  • Breathe more quickly
  • Heart beats faster
  • Less oxygen and glucose get to the muscles
  • Pulse rate increases
Q.4
When we inhale which one of the following is NOT correct?
  • More space is formed in the thorax (volume increases)
  • The air pressure in the chest (thorax) increases
  • The diaphragm contracts
  • The rib muscles contract
Q.5
The diaphragm is .......
  • a lining of the lungs
  • a muscle which connects the ribs
  • a sheet of muscle under the lungs
  • the windpipe
Q.6
Which two substances are needed for aerobic cellular respiration to take place?
  • Glucose and carbon dioxide
  • Glucose and water
  • Oxygen and glucose
  • Oxygen and water
Q.7
Which of the following are the products of cellular respiration?
  • Energy, carbon dioxide and water
  • Energy, glucose and carbon dioxide
  • Energy, oxygen and glucose
  • Energy, oxygen and water
Q.8
The trachea (windpipe) is kept open because it is contains rings made from .......
  • bone
  • capillaries
  • cartilage
  • muscle
Q.9
Which of the following statements is FALSE?
  • Carbon dioxide diffuses into blood plasma from cells.
  • Carbon dioxide diffuses into the alveoli from the blood.
  • Carbon dioxide dissolves in white blood cells.
  • Carbon dioxide is transported in the bloodstream to the lungs.
Q.10
Oxygen is transported to all parts of the body by .......
  • blood plasma
  • dissolving in water
  • red blood cells
  • white blood cells
0 h : 0 m : 1 s