Respiratory System

Question 1

Aerobic

Answer 1

with oxygen

Question 2

Anaerobic

Answer 2

without oxygen

Question 3

Animals need oxygen

Answer 3

Aerobic Cellular Respiration

Question 4

As body size increases..

Answer 4

Surface area to volume ratio decreases, therefore large animals don’t have the surface area for the sufficient gas exchange

Question 5

Animals evolved several methods of aquiring this needed oxygen such as..

Answer 5

aquatic- gills

terrestrial- lungs

Question 6

When you inhale..

Answer 6

• Diaphragm goes down
• Volume goes up
• Pressure goes down

Question 7

When you exhale..

Answer 7

• Diaphragm goes up
• Volume goes down
• Pressure goes up

Question 8

Diaphragm

Answer 8

• muscular wall which aids breathing
• Located at the base of rib cage
• Separates abdominal and thoracic cavities

Question 9

Trachea

Answer 9

• Windpipe

- Air tube which connects pharynx to bronchus

Question 10

Bronchus

Answer 10

Air tube which divides and goes to each lung

Question 11

Bronchioles

Answer 11

Smaller branches of bronchus carry air to alveoli

Question 12

Alveolus

Answer 12

• Tiny air sacs
• Site of gas exchange in lungs
• Millions of alveoli per lung

Question 13

Respiration

Answer 13

Exchange of gases between air and cells, via the blood

Question 14

External Respiration

Answer 14

• in lungs

- Exchange of gases between air and blood in the lungs

Question 15

Internal Respiration

Answer 15

Exchange of gases between blood and cells throughout the body

Question 16

Breathing

Answer 16

Process of inhaling and exhaling

Question 17

Red Blood

Answer 17

• Good blood (oxygenated)

- Arteries

Question 18

Blue Blood

Answer 18

• Bad blood
• not oxygenated
• veins