Quiz on Respiration in Organisms

What is respiration?

• The process of taking in food

• The process of releasing energy by oxidation of food

• The process of breathing out carbon dioxide

• The process of digesting food

What is inhalation?

• Breathing out air

• Breathing in air including oxygen

• The release of carbon dioxide

• The process of gas exchange

What is exhalation?

• The intake of food

• Breathing out carbon dioxide and water vapour

• Breathing in oxygen

• The absorption of oxygen in blood

Where does gas exchange take place in human lungs?

• Diaphragm

• Trachea

• Bronchi

• Alveoli

What is the average breathing rate of a human at rest?

• 25-30 breaths per minute

• 10-15 breaths per minute

• 15-20 breaths per minute

• 20-25 breaths per minute

What is aerobic respiration?

• Respiration that occurs in plants only

• Respiration without oxygen

• Respiration that occurs only in animals

• Respiration with oxygen

What is produced during anaerobic respiration in humans?

• Oxygen

• Glucose

• Carbon dioxide

• Lactic acid

Which organisms can perform anaerobic respiration?

• Only plants

• Only humans

• Yeast and bacteria

• All animals

What is the main waste product of respiration?

• Carbon dioxide

• Oxygen

• Glucose

• Nitrogen

What is the role of haemoglobin in respiration?

• To transport oxygen in the blood

• To break down glucose

• To absorb carbon dioxide

• To release energy