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Human Defences OALH y8
By Alice Maud
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Last updated over 4 years ago
20 questions
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Do Now
Question 1
1.
Name one non-communicable disease (1)
Question 2
2.
Define “pathogen” (1)
Question 3
3.
State the equation for aerobic respiration. (Challenge – can you write the balanced symbol equation?) (1)
Question 4
4.
What is meant by the “resolution” of a measuring instrument? (1)
Question 5
5.
Round 29.71 to 2 significant figures. (1)
Question 6
6.
Challenge:
State the name of an organism that transports a pathogen from one organism to another and give an example. (1)
CFU
Question 7
7.
Which of the following is NOT an example of a chemical barrier?
Mucus
Skin
Enzymes
Question 8
8.
Which of the following is NOT a physical barrier
Skin
Small hairs
Eyelashes
Enzymes
Key Knowledge
Question 9
9.
Define a “non-specific” defence
Question 10
10.
State 4 examples of physical defences
Question 11
11.
State 4 chemical defences
Question 12
12.
Define a “specific” defence
Question 13
13.
Describe the immune system.
Question 14
14.
What are the 3 ways that the white blood cells destroy pathogens?
Recall Quiz
Question 15
15.
A non specific barrier is a body’s defence that will…
prevent all types of pathogen from entering the body.
locate and destroy specific types of pathogens.
prevent all types of white blood cells from entering the body.
Question 16
16.
Which of the following is
not
a physical defence?
skin
eyelashes
enzymes
nose hairs
Question 17
17.
Which of the following is a chemical barrier which might kill a pathogen found in food?
enzymes in your tears
hydrochloric acid
saliva in your mouth
white blood cells
Question 18
18.
Which type of cell is a key part of the immune system
red blood cell
white blood cell
pathogen
Question 19
19.
Which of the following is aa specific barrier to disease.
enymes
immune system
nose hairs
all of the above
Question 20
20.
Which of the following is
not
a way white blood cells defend against pathogens
Producing antibodies
Producing antigens
Engulfing pathogens