Respiration in organisms Worksheet-1
(a) through the oesophagus and gullet
(b) through the mouth and the nose
(c) through the nose and the nervous system
(d) through the windpipe and the pores
(a) Vibrates and creates sounds.
(b) Closes up so that no oxygen can escape.
(c) Branches in two directions.
(d) Branches in three directions.
(a) To keep dust out of the lungs.
(b) They serve no purpose.
(c) To tickle the nose and cause sneezes.
(d) To fight disease.
(a) They circulate through the body and are disposed off later.
(b) They are changed into oxygen by the lungs.
(c) They are absorbed into the digestive system and used to produce energy.
(d) They are exhaled.
(a) Trachea (b) Lungs (c) Oesophagus (d) Larynx
(a) Liquid waste is filtered from the blood.
(b) Oxygen is exchanged for carbon dioxide.
(c) The trachea is exchanged for the larynx.
(d) Carbon dioxide is exchanged for oxygen.
(a) The stomach (b) The diaphragm
(c) The brain (d) The lungs
(a) small blood vessels in the lungs
(b) nerve fibres
(c) a large artery in the heart
(d) a tube in the lungs called the jugular vein
(a) Tiny sacs (b) The diaphragm
(c) The rib cage (d) Cartilage
(a) Bronchioles (b) parabronchi (c) Spiracles (d) Bronchi
(a) Bronchioles (b) Bronchi (c) Alveoli (d) Trachea
(a) Amphibians (b) Birds (c) Mammals (d) Reptiles
(a) reptile lungs (b) amphibian lungs
(c) mammal lungs (d) fish gills
(a) Trachea (b) Nostrils (c) Pharynx (d) Alveoli
(a) bound to oxygen
(b) dissolved in the plasma
(c) as bicarbonate ions in the red blood cells
(d) as carbon monoxide in the red blood cells