Lesson 6: Respiration in other animals

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

Chapter 5 (kerboodle) 

Breathing and respiration

Lesson 6: Breathing in other animals

Mammals

• Where is the respiratory surface (RS)?
  Lungs (alveoli)
• How is the RS kept moist?
  Mucus
• Where does the organism get its oxygen from? 
  From the air
• How does oxygen go from RS to cells? 
  Via the blood
• How is the surface of the RS increased? 
  Lungs are composed of millions of tiny air sacs (alveoli)

What is an Amoeba?

• Single cell organism (Greek amoibe, means changing)
  
• Can alter it's shape
• Eats bacteria
  
• Lives as parasite in animals or in water 

Amoeba

• Where is the respiratory surface (RS)?
  Cell membrane
• How is the RS kept moist?
  They live in water 
• Where does the organism get its oxygen from? 
  From the water
• How does oxygen go from RS to cells? 
  Via diffusion into and out of the cytoplasm over the cell membrane
• How is the surface of the RS increased? 
  Folds of the cell membrane

Worm

• Where is the respiratory surface (RS)?
  Skin cells
• How is the RS kept moist?
  Mucus
• Where does the organism get its oxygen from? 
  Air 
• How does oxygen go from RS to cells?
  Diffusion between air and blood 
• How is the surface of the RS increased? 
  By ridges in the skin 

Fish

• Where is the respiratory surface (RS)?
  Gills
• How is the RS kept moist?
  They live in water 
• Where does the organism get its oxygen from? 
  From the water
• How does oxygen go from RS to cells? 
  Gas exchange between the water and blood in the gills
• How is the surface of the RS increased?
   Gill arches and fine lamelles

Insect

• Where is the respiratory surface (RS)?
  Spiracles (small holes in their abdomen)
• How is the RS kept moist?
  Not always moist
• Where does the organism get its oxygen from? 
  Air
• How does oxygen go from RS to cells? 
  By diffusion sometimes pumping air
• How is the surface of the RS increased? 
  Many tubes within tubes

Study for the glossary quiz!

-Quizlet live in 15 min. 

HW for next week 

Kerboodle

Question 1 -4 / page 76