Respiration

The reaction of food with oxygen is called _____

• diffusion

• Respiration

• fuels

• oxidation

Each _____ enters a lung.

• trachea

• Bronchus

• Pharynx

• alveoli

The process of breathing in air is called _________

• inhalation

• exhalation

In the lungs, the bronchi branch into smaller tubes known as Bronchitubes

• TRUE

• FALSE

The opening and closing of stomata is controlled by ________

• Guard cells

• Stoma cells

Whales use lungs to breathe

• True

• False

The process by which organisms respire in the presence of oxygen is

callled___________respiration

• aerobic

• anaerobic

Humans breathe in about __ litres of air every minute.

• 5

• 7

• 4

• 9

• 6

Humans inhale and exhale air about _______ times per day.

• 20,000

• 22,000

• 21,000

• 21,500

• 23,300

____ Is the process by wich energy is released from food.

• exhalation

• Respiration

• oxidation

• inhalation