Blood Vessels & Blood (OCR GCSE Biology A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
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13 questions from this quiz
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Practise the questions
13 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?
Oxygen molecules
What is the main function of red blood cells?
What is the main function of red blood cells?
Carry oxygen from lungs to body cells
Why do red blood cells have a biconcave disc shape?
Why do red blood cells have a biconcave disc shape?
To provide a large surface area
Why do red blood cells have no nucleus?
Why do red blood cells have no nucleus?
To allow more room to carry oxygen
What is formed when haemoglobin binds to oxygen?
What is formed when haemoglobin binds to oxygen?
Oxyhaemoglobin
What is the role of white blood cells?
What is the role of white blood cells?
Part of immune system against pathogens
What are pathogens?
What are pathogens?
Microorganisms that can produce disease
Which blood cells have a nucleus?
Which blood cells have a nucleus?
White blood cells
What do antibodies do?
What do antibodies do?
Clump microorganisms together
Which type of white blood cell engulfs and digests pathogens?
Which type of white blood cell engulfs and digests pathogens?
Phagocytes
What do antitoxins do?
What do antitoxins do?
Neutralise toxins from microorganisms
What is the main function of platelets?
What is the main function of platelets?
Help blood clot at wound sites