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WorksheetsHUMAN DEFENCE MECHANISM
Total questions: 40
Worksheet time: 3hrs 20mins
Pathogen enters our body through
Skin
Respiratory system
Digestive system
All above
Our body has 3 lines of body defence to fight pathogens
True
False
Our first line of body defence is
Antibodies
White blood cells
Skin
White blood cells fight the phatogen through ...... process
Phagocynisis
Phagorytosis
Phagocytosis
Phagolysis
In third line of body defence, pathogen will fight with
Red blood cell
White blood cell
Antibody
Anybody
Pathogen will enter the skin if there is a....on the skin
Wound
Injured
Hole
Food
Mucuos membrane is the membrane that produced mucous along the
Reproductive system
Digestive system
Respiratory system
Lymphatic system
Diagram shows a process of
Erytrocytisis
Phagocytosis
Parolysis
Phagonisis
Third line of body defence involving the production of
Antiserum
Antibody
Anybody
Antivaccine
What happen in the diagram?
Antibody stick up all antigens into a lumps
Antigen stick among themselves to build an large lump
Antibody release toxin to kill antigens
Antigen absorbs nutrien from antibody
A protein produced by white blood cells into blood stream to fight disease.
This statement refers to ...
Antigen
Antiaging
Antiserum
Antibody
Pathogens, toxin moleculs and blood cells from other blood groups are known as ....
Antiserum
Antiseptic
Antigen
Antibody
Proteins that have a specific fit to a specific antigen are called
allergens
antibodies
antihistamines
none of these
What are made in the thymus, spleen, bone marrow and lymph nodes?
erythrocytes
histocytes
lymphocytes
platelets
B lymphocytes produce
allergens
antigens
antibodies
all of these
Which cells actually kill invading bacteria and viruses?
Antigens
B cells
T cells
thrombocytes
Which lymphocytes are stimulated by vaccinations?
B cells
T cells
AAA cells
V cells
What is the most important thing about colostrum
its full of fat
it replaces shivering
its got antibodies
its free
What is an attenuated virus>
a dead one
a disabled one
a manufactured one
a natural one
Which of the following is/are part(s) of the specific defence mechanism?
(1) production of histamine
(2) phagocytosis
(3) production of antibodies
(1) only
(3) only
(1) and (3) only
(2) and (3) only
Which of the following comparisons of B cells and T cells is correct?
Which of the following descriptions about antibodies is/are correct?
(1) Antibodies act only on specific antigens.
(2) Antibodies have a memory for specific antigens.
(3) Antibodies are stored in the lymph nodes after use.
(1) only
(1) and (2) only
(1) and (3) only
(2) and (3) only
Alex was infected by a pathogen for the first time two months ago. He was then exposed to the same pathogen two weeks ago. Which of the following graphs correctly shows the change in pathogen level in Alex’s blood?
John received an injection of antibodies in order to develop immunity against tetanus, a bacterial disease which can cause paralysis and death. Which of the following graphs correctly shows the changes in the antibody concentration in his blood?
Which of the following combinations correctly states the types of immunity?
The body producing antibodies in response to a pathogen entering from the environment e.g. catching a cold, is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Antibodies produce in the body due to a vaccine is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Antibodies entering the body from another organism through breastmilk or crossing the placenta is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Antibodies entering the body from another organism by injection is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Where do lymphocytes and monocytes form?
Bone marrow
Spleen
Thymus
Lymph nodes
A foreign particle that causes the production of antibodies is called...?
Antigen
Monocyte
Pathogen
Leucocyte
Lymphocytes that recognize antigens on the surface of other white blood cells and cause B cells to replicate are called...?
Helper T cells
Killer T cells
Suppressor T cells
Memory T cells
Lymphocytes that destroy abnormal body cells are called...?
Helper T cells
Killer T cells
Suppressor T cells
Memory T cells
Lymphocytes that survive for years after the infection and speed up any subsequent action of T cells are called...?
Helper T cells
Killer T cells
Suppressor T cells
Memory T cells
Where do T cells (T lymphocytes) mature?
Thalmus
Hypothalmus
Bone marrow
Thymus
Which of the following is NOT an organ of the immune system?
Thymus
Skin
Spleen
Lymph nodes
What is the role of B lymphocytes?
Recognize an antigen and produce a specific antibody in response
Reduce the immune response of other cells so immune system does not overreact to an infection
Engulf foreign bodies and digest them
Attack pathogens by releasing enzymes to put holes in their cell walls
What do antibiotics kill?
bacteria
virus
fungus
A disease causing organism is called...?
Parasite
Pathogen
Microbe
Bacteria
The ability to resist infection is called...?
Immunity
Invulnerability
Resistance
Health
