1
Q
What antigens are used in vaccines?
A
Inactivated pathogen toxins.
Dead pathogens.
Parts of pathogens.
Weakened pathogens.
2
Q
What is an adjuvant?
A
A substance which makes the vaccine more effective, enhancing the immune response.
3
Q
What is herd immunity?
A
Herd immunity occurs when a large percentage of a population are immunised.
4
Q
What causes difficulties to arise in widespread vaccination?
A
Poverty or when vaccines are rejected by a percentage of the population.
5
Q
What is antigenic variation? (Influenza)
A
When a pathogen changes their antigens, meaning memory cells are not effective against them.
Higher human Biology
flashcards
Decks in class (24)
# Cards
-
Unit 1- Division & Differentiation11
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Unit 1- Structure And Replication of DNA8
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Unit 1- Gene Expression And Protein Synthesis11
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Unit 1- Mutations17
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Unit 1- Genomics5
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Unit 1- Metabolic Pathways13
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Unit 1- Cellular Respiration9
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Unit 1- Energy Systems6
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Unit 2- Gametes4
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Unit 2- Hormonal Control6
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Unit 2- Controlling Fertility9
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Unit 2- Antenatal & Postnatal Screening15
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Unit 2- Blood Vessels9
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Unit 2- The Heart12
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Unit 2- Cardiovascular Disease12
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Unit 2- Blood Glucose9
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Unit 3- Nervous system and pathways14
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Unit 3- Cerebral Cortex8
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Unit 3- Memory12
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Unit 3- Nervous System And Synapses26
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Unit 3- Non Specific Defenses6
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Unit 3- Defense Against Pathogens9
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Unit 3- Immunisation5
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Unit 3- Clinical Trials1
