Internal And External Respiration

Question 1

What is the primary function of the respiratory system?

Answer 1

To facilitate gas exchange, primarily oxygen and carbon dioxide.

Question 2

True or False: External respiration occurs in the alveoli.

Answer 2

True

Question 3

Fill in the blank: The equation for cellular respiration is __________.

Answer 3

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy

Question 4

What is internal respiration?

Answer 4

The exchange of gases between the blood and the body’s tissues.

Question 5

Which gas is primarily taken in during external respiration?

Answer 5

Oxygen

Question 6

What is the chemical equation for external respiration?

Answer 6

O2 + C6H12O6 → CO2 + H2O + energy

Question 7

Multiple Choice: Which structure is primarily involved in gas exchange?

Answer 7

Alveoli

Question 8

True or False: Internal respiration involves the exchange of gases in the lungs.

Answer 8

False

Question 9

What is the role of hemoglobin in the respiratory system?

Answer 9

To transport oxygen from the lungs to the tissues and carbon dioxide from the tissues to the lungs.

Question 10

Fill in the blank: The primary muscle involved in respiration is the __________.

Answer 10

Diaphragm

Question 11

What is the term for the process of breathing?

Answer 11

Ventilation

Question 12

Multiple Choice: Which gas is a byproduct of cellular respiration?

Answer 12

Carbon dioxide

Question 13

What is the significance of partial pressure in gas exchange?

Answer 13

It determines the direction of gas movement between the alveoli and the blood.

Question 14

True or False: The respiratory system only works during physical activity.

Answer 14

False

Question 15

Fill in the blank: The respiratory system includes the __________, trachea, and bronchi.

Answer 15

Nasal cavity

Question 16

What is the main purpose of surfactant in the lungs?

Answer 16

To reduce surface tension in the alveoli and prevent collapse.

Question 17

Multiple Choice: Which part of the respiratory system serves as the voice box?

Answer 17

Larynx

Question 18

What is the main difference between internal and external respiration?

Answer 18

Internal respiration occurs at the tissue level, while external respiration occurs in the lungs.

Question 19

True or False: Gas exchange occurs actively through diffusion.

Answer 19

True

Question 20

What is the role of the respiratory epithelium?

Answer 20

To trap and clear inhaled particles and pathogens.

Question 21

Fill in the blank: The respiratory system helps regulate __________ balance in the body.

Answer 21

pH

Question 22

What is the term for the amount of air that can be forcibly exhaled after a normal exhalation?

Answer 22

Expiratory Reserve Volume (ERV)

Question 23

Multiple Choice: What is the primary driving force for air movement during inhalation?

Answer 23

Negative pressure in the thoracic cavity

Question 24

True or False: The lungs are responsible for producing sound during speech.

Answer 24

False

Question 25

What does the term 'tidal volume' refer to?

Answer 25

The amount of air inhaled or exhaled during normal breathing.

Question 26

Fill in the blank: The exchange of gases occurs in the __________.

Answer 26

Alveoli

Question 27

What is the function of the bronchi?

Answer 27

To conduct air from the trachea to the lungs.