Life Science Grade 11(Gaseous Exchange)

Question 1

What is the process by which oxygen is taken in and carbon dioxide is released in living organisms?

Answer 1

Gaseous exchange

Question 2

True or False: Gaseous exchange occurs through the process of diffusion.

Answer 2

True

Question 3

What is the main respiratory organ in humans?

Answer 3

Lungs

Question 4

Fill in the blank: Gaseous exchange occurs in the ________.

Answer 4

Alveoli

Question 5

What is the function of red blood cells in gaseous exchange?

Answer 5

Transport oxygen and carbon dioxide

Question 6

Which gas is in higher concentration in the alveoli compared to the blood?

Answer 6

Oxygen

Question 7

What is the term for the movement of gases between the alveoli and blood capillaries?

Answer 7

External respiration

Question 8

What is the term for the movement of gases between blood capillaries and body tissues?

Answer 8

Internal respiration

Question 9

Which gas is produced as a waste product during cellular respiration?

Answer 9

Carbon dioxide

Question 10

What is the role of the diaphragm in breathing?

Answer 10

Muscle that contracts and relaxes to control inhalation and exhalation

Question 11

What is the term for the total volume of air that can be inhaled and exhaled in one breath?

Answer 11

Vital capacity

Question 12

Which respiratory disorder is characterized by inflammation and narrowing of the airways?

Answer 12

Asthma

Question 13

What is the term for the process of forcefully expelling air from the lungs?

Answer 13

Exhalation

Question 14

What is the term for the process of drawing air into the lungs?

Answer 14

Inhalation

Question 15

What is the name of the pigment in red blood cells that binds to oxygen?

Answer 15

Hemoglobin

Question 16

Which gas is transported in the blood as bicarbonate ions?

Answer 16

Carbon dioxide

Question 17

What is the term for the exchange of gases between air and blood in the lungs?

Answer 17

Pulmonary respiration

Question 18

What is the term for the process of exchanging gases between blood and body tissues?

Answer 18

Tissue respiration

Question 19

Which part of the brain controls the rate and depth of breathing?

Answer 19

Medulla oblongata

Question 20

What is the term for the process of oxygen and carbon dioxide diffusion at the cellular level?

Answer 20

Cellular respiration

Question 21

Which gas is released as a byproduct of photosynthesis?

Answer 21

Oxygen

Question 22

What is the term for the maximum amount of oxygen that can be utilized during intense exercise?

Answer 22

VO2 max

Question 23

True or False: The respiratory system works independently of the circulatory system in gaseous exchange.

Answer 23

False

Question 24

What is the term for the process of gas exchange in plants?

Answer 24

Transpiration

Question 25

What is the difference between Cellular respiration,Breathing and gas exchange??

Answer 25

Cellular respiration

-Occurs in the living plant and animal cells
-It is a chemical process

-Involves inhalation and exhalation
-It is a mechanical process

-Occurs at two sites in the body,the lungs and in body tissues
-It is a physical process involving diffusion