Chapter 9 Respiratory System Review

These organs help our body to breath except for...

• Nasal cavity

• Lungs

• Trachea

• Esophagus

Which of the following processes transport oxygen from the alveoli into the capillaries?

• Respiration

• Inhalation

• Exhalation

• Diffusion

During exhalation, which one of the following occurs?

• Diaphragm moves downward and flatten

• Rib cage moves upwards and outwards

• the diaphragm muscle relaxes

• Intercostal muscles contract

When you inhale, which of the following occurs?

• Thoracic cavity become smaller

• The air pressure in the thoracic cavity increases

• The air pressure in the thoracic cavity decreases

• Air is pushed out

The composition of oxygen in inhaled air is _____%

• 21%

• 16%

• 4%

• 0.04%

The composition of carbon dioxide in exhaled air is ___%

• 79%

• 21%

• 4%

• 0.04%

What is the correct definition for the diffusion process?

• Molecules move from a region of lower concentration to a region of higher concentration

• Molecules move from a region of higher concentration to a region of lower concentration

State the products of respiration in the bodies cells?

• Oxygen, carbon dioxide and water

• glucose, oxygen and water

• carbon dioxide, water and oxygen

• carbon dioxide, water and energy

Tags

NGSS.MS-LS2-3

These are characteristics of the alveoli making it efficient for gaseous exchange EXCEPT FOR:

• Thin wall of blood capillaries

• small surface area of the alveoli

• Moist wall of alveoli

• Dense netword of blood capillaries

Tags

NGSS.MS-LS1-2

What is the name of the oxygen binding compound found in the red blood cells

• Oxyhaemoglobin

• Hemoglobin

• Hormones

• Enzymes