6 (a) Name the organisation which defines health as a state of complete physical,
mental and social well-being and not merely the absence of disease or infirmity - Edexcel - GCSE Biology Combined Science - Question 6 - 2021 - Paper 1
Question 6
6 (a) Name the organisation which defines health as a state of complete physical,
mental and social well-being and not merely the absence of disease or infirmity.
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Worked Solution & Example Answer:6 (a) Name the organisation which defines health as a state of complete physical,
mental and social well-being and not merely the absence of disease or infirmity - Edexcel - GCSE Biology Combined Science - Question 6 - 2021 - Paper 1
Step 1
Name the organisation which defines health as a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.
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Answer
The organisation that defines health in this manner is the World Health Organization (WHO).
Step 2
State two ways that communicable diseases are different from non-communicable diseases.
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Answer
Communicable diseases are transmitted from person to person, while non-communicable diseases are not transmitted in this way.
Communicable diseases are caused by pathogens, such as bacteria or viruses, while non-communicable diseases are typically caused by lifestyle factors or genetic issues.
Step 3
Explain one way that the spread of tuberculosis (TB) can be reduced or prevented.
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Answer
One effective way to reduce the spread of tuberculosis (TB) is through vaccination. Immunization against TB significantly lowers the chance of individuals contracting the disease by stimulating the immune response, thereby providing protection.
Step 4
Complete the table to show the student's data.
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Answer
Country
Number of people with TB
Belgium
1000
Portugal
2400
UK
5400
Germany
5800
France
6100
Step 5
Describe how the physical barriers and chemical defences of the human body provide protection from diseases.
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Answer
The human body has both physical barriers and chemical defenses that play critical roles in protecting against diseases.
Physical Barriers
Skin: Acts as a thick protective covering, preventing pathogen entry. It is waterproof and sheds dead cells that can trap pathogens.
Mucus: Lines surfaces and traps pathogens, preventing their entry into the body.
Cilia: Tiny hair-like structures that move mucus and pathogens out of the airways.
Tears: Help wash away pathogens from the eyes.
Blood Clots: Form scabs over wounds, preventing pathogen entry.
Chemical Defences
Lysozymes: Found in tears, saliva, and mucus, they kill some bacteria.
Hydrochloric Acid: Present in the stomach, it creates a hostile environment for many pathogens.
Antibodies: Produced by the immune system to target and neutralize specific pathogens.