Respiration Basics
What gas do animals take in when they respire?
Oxygen
Which body part helps humans breathe: lungs, gills, or fins?
Lungs
What do fish use to respire in water?
Gills
What kind of system do insects use to respire?
A tracheal system
I live in water and use gills to take oxygen from water. What am I?
A fish
What gas do animals send out when they respire?
Carbon dioxide
Name one animal that has lungs.
Possible answers: dog, cat, bird, lion, elephant, frog, human.
Do fish take oxygen from the air or from the water?
From the water
What are the tiny holes on an insect’s body called?
Spiracles
I am an animal with lungs. I bark and can be a pet. What am I?
A dog
What does the word respire mean?
To take in oxygen and release carbon dioxide.
What bones protect the lungs?
Ribs
True or false: Fish use lungs to breathe underwater.
False
What are the tubes inside an insect’s body called?
Tracheae
I am small and have six legs. I use spiracles and tracheae to respire. What am I?
An insect
What is the name of breathing air into your body?
Inhale
What muscle moves down when you inhale and helps your lungs fill with air?
The diaphragm
What part of a fish opens and closes to let water enter?
Its mouth
Do insects breathe through their mouths?
No, they breathe through spiracles.
I am long, live in the soil, and can breathe through my moist skin. What am I?
A worm / earthworm
What is the name of breathing carbon dioxide out of your body?
Exhale
Put these steps in order: we exhale; air enters the lungs; carbon dioxide leaves the blood; oxygen goes into the blood;
1. Air enters the lungs.
2. Oxygen goes into the blood.
3. Carbon dioxide leaves the blood.
4. We exhale.
Put the fish respiration steps in order: water leaves the gills; water enters the mouth; oxygen goes into the blood; carbon dioxide goes into the water; water passes over the gills.
1. Water enters the mouth.
2. Water passes over the gills.
3. Oxygen goes into the blood.
4. Carbon dioxide goes into the water.
5. Water leaves the gills.
Explain the path of oxygen in an insect’s body.
Oxygen enters through the spiracles and moves through tubes called tracheae. Carbon dioxide leaves through the spiracles.
I can use lungs on land, but I can also breathe through my moist skin in water. What am I?
A frog