Respiration End Of Unit Test

Question 0

There walls are very…

Answer 0

Thin

Question 1

Alveoli cover a
A) small
B) large
Surface area

Answer 1

B

Question 2

Gases…………..through the walls

Answer 2

Diffuse

Question 3

The alveoli are MOIST so the gasses…………….

Answer 3

Dissolve

Question 4

The alveoli is surrounded by a large network of ……………

Answer 4

Capillaries

Question 5

Which gas diffuses through the walls of the alveoli

Answer 5

Oxygen

Question 6

The alveoli transfers oxygen into the ……..

Answer 6

Blood

Question 7

What do red blood sells contain

Answer 7

Haemogoblim

Question 8

What does the carbon dioxide diffuse from

Answer 8

The plasma

Question 9

What helps gas exchange

Answer 9

Thin alveoli wall
Thin layer of moisture which dissolves the gas
Thin capillary wall

Question 10

Where does gas exchange happen?

Answer 10

At the alveoli

Question 11

Where is the alveoli

Answer 11

Connected to the bronchioles in the lungs

Question 12

On a model what happens to the lungs when the rubber diaphragm is pulled down

Answer 12

The lungs (which are balloons) will inflate

Question 13

What happens when the rubber diaphragm is pushed up again

Answer 13

The lungs deflate

Question 14

Pressure always changes
A) high to low
B) low to high

Answer 14

A

Question 15

When inhaling the diaphragm muscle ……… …. …….. ………

Answer 15

Contracts and moves down

Question 16

When the rib muscle contacts the rib cage ……………..

Answer 16

Expands

Question 17

Where does the aorta go

Answer 17

To the rest of the body

Question 18

Where does the pulmonary artery go to

Answer 18

The lungs

Question 19

Where does the vena cava come from

Answer 19

The rest of the body

Question 20

Where does the pulmonary vein come from

Answer 20

The lungs

Question 21

Four chambers of the heart

Answer 21

Right ventricle, left ventricle, right atrium, left atrium

Question 22

Which Chambers have the thinnest walls

Answer 22

The atriums/atrial

Question 23

Which chamber has the thickest walls

Answer 23

Left ventricle

Question 24

The left ventricle has the thickest walls because …..

Answer 24

It has to pump blood around the whole body

Question 25

What do valves do

Answer 25

Stop the back flow of blood