Unit 1.8 Warm-blooded and cold-blooded animals

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

Today' s planning

- Repeat Chapter 1

- Instruction BS1.8 'Warm and cold blooded animals'

- Assignments

Repeat: Answer the questions below in your notebook.

1. The bronchi split into smaller tubes. What are the names of the smaller tubes?

2. How is the windpipe protected?

3. They say breathing in through your nose is healthier than breathing in through you mouth. Explain why this is true.

4. Explain what happens when you choke on a piece of food.

5. Sometimes, people laugh while they drink something and their drinks comes back through their nose. Explain what happens in such a situation.

6. The lungs aren’t just two sacs which fill with air. The lungs have tubes that split into smaller tubes and eventually split into air sacs called alveoli. Explain why it is convenient that we have a lots of smaller air sacs instead of two big air sacs.

 

Answers

1. bronchioles

2. rings of cartilage

3. The air gets warmed up, moistened and germs are captured 

4. Food ends up in the windpipe

5. The drink flows from the mouth cavity to the nose cavity, as the uvula is opened. 

6. Enlargement of the surface area! 

Repeat: Gas exchange

The table shows what happens to the air we inhale

1. What gas is removed from inhaled air? 

2. Which two gases are added to inhaled air and then exhaled?  

3. Which gas shows the greatest difference in percent between inhaled and exhaled air?

Assignment 6 of BS1.4

Choose the correct word

Choose the correct word

Unit 1 Basic 8

Warm-blooded and cold-blooded animals

Learning goals

• I can describe the differences in respiration between cold-blooded and warm-blooded animals
  

Which animal is warm blooded and which cold blooded??

Living in an extreme cold environment

Adaptations: Isolation

Is the green line a warm-blooded or cold-blooded animal?

1. warm-blooded
2. cold-blooded

How does this information relate to the rest of the chapter?

Answer: respiration (=combustion) is dependent on temperature

What is the formula of respiration (= combustion in your body)? 

Glucose

Oxygen

Energy

Carbon dioxide

Water

Energy is used for

-contraction of muscles

-Transporting chemicals

-Absorbing food

-Sending messages along nerves

-Building new cells for growth

-Keeping a constant body temperature

Rule number 1 

The higher the body temperature, the more combustion takes place. 

In which frog does more respiration take place?

Rule number 2 

For warm blooded animals: In the winter, extra respiration takes place in order to maintain the body temperature.

In which bear does more respiration take place?

Get to work

BS 1.8 

exercise 1 to 4

Friday: Repeating/ practice test

Wednesday next week: TEST unit 1 bs 1,2,3,4,8

Drag the  green square to the container where most respiration takes places, and the blue circle where there is the least respiration

Why is it more likely to find a whale (marine mammal) around the poles, but unlike to find a shark around there?