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WorksheetsFirst and Second Line Defense Immune
Total questions: 10
Worksheet time: 5mins
Name the process a cell such as a neutrophil or a macrophage uses to engulf its prey
halitosis
chemotaxis
botulism
phagocytosis
The second line of defence includes:
Inflammation and fever
Targeting specific pathogens
Production of antibodies
Chemical barriers like acids, enzymes, and other secretions
A sign that shows your second line of defence has been triggered:
redness
swelling
inflammation
all of the above
What is the correct order of enzyme activation cascade in the blood clotting process?
Fibrin, fibrinogen, thrombin, prothrombin
Prothrombin, thrombin, fibrin, fibrinogen
Thrombin, prothrombin, fibrin, fibrinogen
Prothrombin, thrombin, fibrinogen, fibrin
The second line of defence helps to:
prevent pathogens from entering body
fight all types pathogens once they have entered the body
fight off specific pathogens, remember pathogens that have previously invaded
What is the correct order of the events in phagocytosis?
discharge, fusion with lysosome, phagosome forms, detection, digestion, ingestion
detection, ingestion, digestion, phagosome forms, fusion with lysosome, discharge
ingestion, detection, digestion, fusion with lysosome, phagosome forms, discharge
detection, ingestion, phagosome forms, fusion with lysosome, digestion, discharge
Neutrophils are a type of white blood cell involved in the second line of defense. Neutrophils:
envelope pathogens that have entered the body
promote blood flow
secrete antibodies
secrete antigens
During the inflammation process the mast cells release _________, which causes vasodilation.
Histamine
Prostaglandins
PAMPS
Fibrin
What is the function of fibrin in blood clotting?
Catalyses the conversion of the soluble plasma protein fibrinogen
It forms an insoluble mesh of fibres which traps blood cells at the site of damage.
Promotes the release of clotting factors
Recognised by Pattern recognition receptors (PRRs) in a variety of body cells
What effect does histamine produce in the inflammation process:
Decreases blood supply to the injury site
Causes vasoconstriction
Increases capillary permeability
Increases heart rate
