Part 6: Respiration

Question 1

What is respiration?

Answer 1

Gas exchange

Question 2

What is more efficient for O2 as a carrying medium?

Answer 2

Air since it carries about 21% of O2 where water carries around 10%

Question 3

Two types of animals based on their body temperature?

Answer 3

Homeotherms
Birds, mammals
High temperature, active, high O2 needs, fixed amount of oxygen
Poikilotherms
cold blooded, reflect the environment they are in, aquatic animals, harder to take O2 in

Question 4

What affects metabolic rate?

Answer 4

Temperature, amount of activity, size of the animal

Question 5

4 ways: gas exchange systems

Answer 5

1. Integumentary exchange
   getting O2 through skin, small animals, very moist environment
2. Gills
   Fish, lobsters
3. Trachea
   Arthropods, insects, spiders
   O2 diffuses through tracheoles, CO2 diffuses through general body surface
4. Lungs
   When the air sacs expands the air is being sucked in