Mammalian Gas Exchange

Question 1

What is the primary function of gas exchange in mammals?

Answer 1

To supply oxygen to the body and remove carbon dioxide.

Question 2

True or False: Fish use lungs for gas exchange.

Answer 2

False

Question 3

What structure do fish use for gas exchange?

Answer 3

Gills

Question 4

Fill in the blank: Insects use _______ for gas exchange.

Answer 4

Tracheae

Question 5

What is the main gas exchanged in the lungs of mammals?

Answer 5

Oxygen

Question 6

Multiple Choice: Which of the following is NOT a method of gas exchange in aquatic animals? A) Gills B) Lungs C) Skin D) Tracheae

Answer 6

B) Lungs

Question 7

What is the term for the movement of air into and out of the lungs?

Answer 7

Ventilation

Question 8

True or False: The process of gas exchange in fish occurs in a countercurrent exchange system.

Answer 8

True

Question 9

What do we call the tiny air sacs in mammalian lungs where gas exchange occurs?

Answer 9

Alveoli

Question 10

Short answer: How do insects regulate gas exchange?

Answer 10

Through the opening and closing of spiracles.

Question 11

Fill in the blank: The flow of blood in fish gills is in the _______ direction to the flow of water.

Answer 11

Opposite

Question 12

Multiple Choice: Which gas do insects primarily exchange? A) Oxygen B) Carbon Dioxide C) Both A and B D) None

Answer 12

C) Both A and B

Question 13

What is the primary respiratory pigment in mammals?

Answer 13

Hemoglobin

Question 14

True or False: Insects have a closed circulatory system.

Answer 14

False

Question 15

What is the purpose of the operculum in fish?

Answer 15

To cover and protect the gills.

Question 16

Short answer: Name one adaptation that allows fish to extract oxygen from water efficiently.

Answer 16

Countercurrent exchange mechanism.

Question 17

Fill in the blank: Gas exchange in mammals primarily occurs during _______.

Answer 17

Inhalation

Question 18

Multiple Choice: Which of the following is a disadvantage of gas exchange through skin? A) High surface area B) Susceptibility to drying C) Low metabolic cost D) None

Answer 18

B) Susceptibility to drying

Question 19

What are spiracles in insects?

Answer 19

Small openings that lead to the tracheal system for gas exchange.

Question 20

True or False: Fish can breathe air using their gills.

Answer 20

False

Question 21

What type of circulatory system do fish have?

Answer 21

Single circulatory system

Question 22

Short answer: What is the role of surfactant in the alveoli?

Answer 22

To reduce surface tension and prevent alveolar collapse.

Question 23

Fill in the blank: The primary site of gas exchange in insects is the _______.

Answer 23

Tracheoles

Question 24

Multiple Choice: Which gas is primarily produced as a waste product in respiration? A) Nitrogen B) Oxygen C) Carbon Dioxide D) Hydrogen

Answer 24

C) Carbon Dioxide

Question 25

What is the role of hemocyanin in some invertebrates?

Answer 25

To transport oxygen in the blood.

Question 26

True or False: Mammals have a more complex respiratory system than insects.

Answer 26

True

Question 27

Short answer: What is the consequence of low oxygen levels in water for fish?

Answer 27

Increased difficulty in breathing and potential suffocation.