Organisation: The Cardiovascular & Respiratory System (AQA GCSE Biology): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are the four main components of blood?
What are the four main components of blood?
Plasma, red cells, white cells, platelets
Which substance is NOT carried by plasma?
Which substance is NOT carried by plasma?
Haemoglobin
What do red blood cells carry from the lungs to all cells in the body?
What do red blood cells carry from the lungs to all cells in the body?
Oxygen molecules
Why do red blood cells have a bioconcave disc shape?
Why do red blood cells have a bioconcave disc shape?
Provides a large surface area
Why do red blood cells have no nucleus?
Why do red blood cells have no nucleus?
Allows more room to carry oxygen
What is formed when haemoglobin binds to oxygen?
What is formed when haemoglobin binds to oxygen?
Oxyhaemoglobin
What system are white blood cells part of?
What system are white blood cells part of?
Immune system
What are pathogens?
What are pathogens?
Microorganisms that produce disease
Which component of blood has a nucleus?
Which component of blood has a nucleus?
White blood cells
What do antibodies do?
What do antibodies do?
Clump microorganisms together
What do platelets help form at the site of a wound?
What do platelets help form at the site of a wound?
Blood clot
What would happen without platelets?
What would happen without platelets?
Excessive bleeding and bruising