Curriculum
Course: Alhussan Biology — Stage 8
Login

Curriculum

Alhussan Biology — Stage 8

Chapter 5: Respiration and the Respiratory System

0/32

Chapter 6: Nutrition, Health and Movement

0/32

Chapter 7: The Health of the Environment

0/21

Chapter 8: Weather and Climate

0/12
Quiz

5.8 The structure of the alveoli — Quiz

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 50
  • Passing grade: B+
Start Quiz
1.
Which statement is NOT correct?
Haemoglobin carries carbon dioxide only.
Blood arriving at the alveolus is low in oxygen.
Explaining disease means linking it to surface area, distance and gradient.
A large surface area makes gas exchange faster.
2.
Distance walked in 6 minutes by people with lung disease. Which has the smallest value?
Dr Dabour Hub Academy - figure 1
Asthma
Mild COPD
Healthy
Severe COPD
3.
Which term matches this definition? “Sticky substance from smoking that damages the lining.”
COPD
Myoglobin
Diffusion
Tar
4.
Which is the correct definition of “Gas exchange”?
Waste product of anaerobic respiration in muscles.
Oxygen into the blood and carbon dioxide out.
Long-lasting.
Time a mammal spends under water on one breath.
5.
Blood oxygen rose from 75% to 97% across the alveolus. By how many percentage points?
97
22
29
172
6.
Healthy lungs have a surface area of 70 m²; damaged lungs 25 m². What is the percentage decrease?
64%
36%
180%
45%
7.
Oxygen combines with ____.
platelets
plasma
urea
haemoglobin
8.
True or false? In COPD less oxygen reaches the cells.
True
False
9.
The cards compare healthy and damaged lungs. What is the best conclusion?
Dr Dabour Hub Academy - figure 2
Larger sacs speed up diffusion
COPD lungs have a much smaller surface area, so less oxygen enters the blood
COPD lungs absorb more oxygen
Both lungs exchange gases equally
10.
True or false? In pneumonia, fluid and white blood cells fill the alveoli.
True
False
11.
True or false? In pneumonia, fluid fills the alveoli.
True
False
12.
True or false? COPD stands for chronic obstructive pulmonary disease.
True
False
13.
Which is the correct definition of “Breathlessness”?
Difficulty getting enough air.
Height above sea level.
Time a mammal spends under water on one breath.
Long-lasting.
14.
Which is the correct definition of “Capillary”?
Difficulty getting enough air.
Waste product of anaerobic respiration in muscles.
Oxygen into the blood and carbon dioxide out.
A tiny blood vessel next to an alveolus.
15.
Which statement is NOT correct?
People with COPD feel breathless easily.
A small surface area speeds diffusion.
COPD stands for chronic obstructive pulmonary disease.
A large surface area makes gas exchange faster.
16.
Which statement is correct?
Alveoli have thick walls.
Oxygen moves from blood into the alveoli.
Alveolus walls are one cell thick.
Tar improves lung function.
17.
Which term matches this definition? “Protein in red blood cells that carries oxygen.”
Antibody
Capillary
Red blood cell
Haemoglobin
18.
A healthy person walked 550 m and a patient 420 m. What percentage of the healthy distance did the patient walk?
24%
131%
76%
130%
19.
Which term matches this definition? “A tiny blood vessel next to an alveolus.”
Chronic
Capillary
Adaptation
Concentration gradient
20.
True or false? Oxygen moves from the alveoli into the blood by diffusion.
True
False
21.
How is the carbon dioxide gradient kept steep in the alveoli?
Blood arriving has no carbon dioxide
The diaphragm absorbs it
Alveoli make carbon dioxide
Breathing out removes carbon dioxide from the alveolar air
22.
Distance walked in 6 minutes by people with lung disease. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
23.
True or false? Blood arriving at the alveolus is high in carbon dioxide.
True
False
24.
Oxygen in blood along a lung capillary. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
25.
In COPD less oxygen reaches the ____.
cells
hair
bones
stomach
26.
Alveoli have a ____ surface.
moist
waxy
dry
hairy
27.
Which is the correct definition of “Haemoglobin”?
Difficulty getting enough air.
Protein in red blood cells that carries oxygen.
Dome-shaped muscle below the lungs.
An oxygen-storing protein in muscles, high in whales.
28.
Which term matches this definition? “Oxygen into the blood and carbon dioxide out.”
Plasma
Gas exchange
Allergy
Phagocyte
29.
True or false? A small surface area speeds diffusion.
True
False
30.
True or false? COPD increases the surface area for gas exchange.
True
False
31.
Which is the correct definition of “Emphysema”?
A lymphocyte that gives immunity.
Breakdown of alveolar walls giving larger, fewer air sacs.
Training high up to make more red blood cells.
The resting reading used for comparison.
32.
Oxygen in blood along a lung capillary. What is the value of "Oxygen saturation (%)" when "Distance along capillary (µm)" is 400?
Dr Dabour Hub Academy - figure 5
99
96
98
76
33.
Alveolar surface area in healthy and diseased lungs. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
34.
Blood oxygen in patients with different lung function. By how much does "Blood oxygen saturation (%)" change between 30 and 90?
Dr Dabour Hub Academy - figure 7
183
16
98
13
35.
Explaining disease means linking it to surface area, distance and ____.
mass
colour
age
gradient
36.
Breathing brings fresh ____ into the alveoli.
water
food
air
blood
37.
A healthy person walked 600 m and a patient 300 m. What percentage of the healthy distance did the patient walk?
50%
200%
500%
300%
38.
Surface area fell from 75 m² to 25 m². Calculate the percentage decrease.
50%
67%
33%
200%
39.
Surface area fell from 80 m² to 35 m². Calculate the percentage decrease.
129%
45%
44%
56%
40.
True or false? Alveoli have thick walls.
True
False
41.
Blood oxygen in patients with different lung function. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
42.
A good blood supply carries gases ____.
nowhere
away
into the alveolus walls
in circles
43.
Oxygen in blood along a lung capillary. Calculate the percentage change in "Oxygen saturation (%)" from 0 to 400.
Dr Dabour Hub Academy - figure 9
23%
−30%
30%
130%
44.
Oxygen in blood along a lung capillary. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 10
A
B
C
D
45.
The lungs are more like a ____.
bag
balloon
sponge
box
46.
Alveolar surface area in healthy and diseased lungs. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
47.
Blood oxygen rose from 75% to 98% across the alveolus. By how many percentage points?
173
98
31
23
48.
True or false? Oxygen moves from blood into the alveoli.
True
False
49.
Which statement is correct?
People with COPD feel breathless easily.
The lungs are like a simple empty balloon.
COPD increases the surface area for gas exchange.
People with COPD can easily run upstairs.
50.
Distance walked in 6 minutes by people with lung disease. What is the total of all the values?
Dr Dabour Hub Academy - figure 12
452
1516
1377
1238
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
Part of Chapter 5: Respiration and the Respiratory System — see every lesson and quiz in this unit.
Accepted payment methods