Question

Vaccinations require that humans have which type of immune system?

		innate immune system
		adaptive immune system
		all of the above

10 points   

QUESTION 2

Which of the following are examples of antigens?

		one of a group of proteins found in the blood that leads to the clumping of foreign blood cells
		proteins embedded in the membranes of T cells
		foreign molecules that trigger antibody production
		proteins that trigger the end of the inflammatory response

10 points   

QUESTION 3

Vaccines prevent disease by_______________

		stimulating the production of antibodies
		allowing more leukocytes to attack a pathogen
		weakening or killing a virus
		providing primary pathogen defence

10 points   

QUESTION 4

Mast cells __________

		Attack pathogens using phagocytosis
		Constrict blood flow around an open wound
		direct leukocyte activity
		Build the sails on a ship

10 points   

QUESTION 5

Which of the following is true about allergies?

		Allergens are typically safe substances that are damaging to certain individuals who lack the appropriate antibodies
		You can't get allergies if you are exposed to common allergens at a young age
		Antibodies are not produced in response to pollen in someone with seasonal allergies
		Immune responses occur in response to a non-damaging substance in the body because the body thinks the substance is a pathogen

Answer 1

Question 1: The correct answer is all of the above.

Reason:Vaccination is generally given to humans that have both innate immunity and adaptive immunity ( may be acquired through contact with disease ) but lack adaptive immunity to certain pathogens.Vaccination helps to develop adaptive immunity.

Question: The correct answer is foreign molecules that trigger antibody production.

Reason:Antigens are foreign molecules such as proteins, lipids or polysaccharides that trigger stimulation of antibodies.

Question 3. The correct answer is stimulating the production of antibodies.

Reason:Vaccines are generally inactivated forms of pathogenic organisms that stimulate production of antibodies when injected to body.

Question4 .The correct answer is :Attack pathogens using phagocytosis.

Reason:Mast cells kills the pathogen directly through phagocytosis and formation of reactive oxygen species.

Question 5:The correct answer is :You can;t get allergies if you are exposed to common allergens at a young age.

Reason: One of the ways to protect oneself from allergy is the exposure to active allergens at an early stage of life.