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Aqa Biology Immunity Exam Style Questions 2023 with 100% c0rrect answers $7.99   Add to cart

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Aqa Biology Immunity Exam Style Questions 2023 with 100% c0rrect answers

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Aqa Biology Immunity Exam Style Questions & answers 2023 Why are whole-cell vaccines better than vaccines containing parts of the bacterial cell? - ANSWER-1. Contains many different/greater range of antigens 2. Each antigen causes production of a specific antibody Why may it lead to death ...

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  • March 6, 2023
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Aqa Biology Immunity Exam Style
Questions & answers 2023

Why are whole-cell vaccines better than vaccines containing parts of the bacterial cell? - ANSWER-1.
Contains many different/greater range of antigens

2. Each antigen causes production of a specific antibody



Why may it lead to death if a person cannot product an immune response? - ANSWER-1. Infected by/
named disease cause by a pathogen

2. Pathogens reproduce / cause disease (in host)

3. Damage cells/tissues/organs

4. Release toxins



Why may a vaccine not be effective if the virus rapidly enter host cells? - ANSWER-1. (The virus enters
cells) before antibodies can bind to it/ destroy it

2. Antibodies cannot enter cells (to destroy)/ stay in blood



Why may a vaccine not be effective if a virus shows a lot of antigenic variability? - ANSWER-1. Antigen
on the virus changes

2. (specific) antibody can no longer bind to (new) antigen



What is a pathogen? - ANSWER-A microorganism that causes disease



Explain why antibodies are only effective against a specific pathogen? - ANSWER-1. Antigens are a
specific shape

2. Antibody fits/ binds/is complementary to antigen



Why would "...." cause an immune response? - ANSWER-Foreign (act as ) antigen/ non self

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