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WorksheetsThe immune system
Total questions: 23
Worksheet time: 11mins
Which of the following is the name for a micro-organism that can cause disease?
Pathogen
Antibodies
B-cells
Lymphocyte
This sticky fluid traps any pathogens that try and get in our body
Mucous Lining
Blood
Stomach Acid
Skin
What are two examples of chemical barriers?
Lysozyme enzyme in our tears
Skin
White Blood Cells
Stomach Acid
Which of the following is a type of white blood cell that will help to destroy pathogens which get past our physical barriers and chemical defences?
bacterium
antibody
antigen
lymphocyte
What is the molecule located on the outside of a pathogen that the immune system recognizes?
Lymphocyte
Antigen
Pathogen
Inflammation
What attaches to antigens and tags the pathogen for destruction?
Pathogen
Antibodies
B-cells
Lymphocyte
What do memory lymphocytes do?
Kills the virus
Eats the virus
Patrol the area and make the immune system work faster next time.
Makes antibodies
A(n) ________ is a substance that causes an immune response. It can be on the surface of a pathogen.
antigen
antibodies
B cells
T cells
The body's ability to destroy pathogens before they can cause disease is called:
Tolerance
Immunity
Vaccine
Inflammatory response
Proteins called _______ can attach to the antigen and make it useless.
antigen
antibodies
B cells
T cells
What is the ability to resist the pathogens that cause a particular disease?
defense
immunity
immune system
Foreign cells in the body carry foreign proteins that the body recognises as 'non-self'. These are called:
Antibodies
Antigens
Red Blood Cells
White Blood Cells
When the body encounters a pathogen, antibodies are created that are specific to that pathogen. The next time the body encounters the pathogen, the response will be:
Slower
Faster
Which cells produce antibodies to pathogens?
Red blood cells
Bacteria
lymphocytes
phagocytes
The diagram shows a lymphocyte. What is the arrow pointing to on the surface of the lymphocyte?
molecules called antigens
molecules called antibodies
The diagram shows a pathogen, what is the arrow pointing to on the surface of the pathogen?
a molecule called an antigen
a molecule called an antibody
What happens in the body's primary response to a pathogen?
a scab forms
lymphocytes produce many antibodies quickly
particular lymphocytes are activated and make copies of themselves
all lymphocytes are activated and make copies of themselves
Which of these will last the longest in the blood after a primary response?
antibodies
antigens
memory lymphocytes
antibiotics
The graph shows how the body responds by producing antibodies when it is infected by a pathogen. Suggest on which day the first infection by the pathogen was cleared from the body.
Day 10 because antibody numbers start to rise
Day 13 because antibody numbers stop increasing
Day 15 because this is the middle of the primary response
Day 18 because this is when antibody numbers start to fall
Which of the following is true if there is a second infection with the same pathogen? (Use the graph to help you)
antibodies are produced more slowly and you become ill
no antibodies are produced because you are immune to this pathogen
antibodies are produced rapidly so you will quickly recover from the infection
many antibodies are quickly made so you do not become ill
What is a preparation of dead or weakened pathogens that is introduced into the body to cause an immune response?
fungi
vaccine
antigens
When we have a vaccine which of the following happens?
lymphocytes in the body are destroyed by the vaccine
the weakened pathogen in the vaccine causes us to become ill
lymphocytes in the body are activated and memory lymphocytes are produced
lymphocytes in the body quickly produce antibodies
Rate how you feel about the subject matter this week (5 I really understand it, 1 star I did not understand any of it).
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