Organisation: The Cardiovascular & Respiratory System (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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Practise the cards
15 cards from this deck
Four components of blood
Four components of blood
Plasma, red blood cells, white blood cells, platelets
Plasma function
Plasma function
Liquid that carries blood components & dissolved substances
Substances carried by plasma (6 examples)
Substances carried by plasma (6 examples)
Glucose, amino acids, carbon dioxide, urea, hormones, proteins
Red blood cells function
Red blood cells function
Carry oxygen from lungs to all cells in the body
Red blood cells shape and its benefit
Red blood cells shape and its benefit
Biconcave disc shape provides large surface area
Why red blood cells have no nucleus
Why red blood cells have no nucleus
Allows more room to carry oxygen
Haemoglobin function
Haemoglobin function
Red pigment that binds to oxygen
Oxyhaemoglobin definition
Oxyhaemoglobin definition
Haemoglobin bound to oxygen
White blood cells role
White blood cells role
Part of immune system, defend against pathogens
Pathogens definition
Pathogens definition
Microorganisms that can produce disease
Antibodies function
Antibodies function
Small proteins that clump pathogens together
White blood cells engulfing action
White blood cells engulfing action
Engulf and digest pathogens
Antitoxins function
Antitoxins function
Neutralise toxins produced by microorganisms
Platelets function
Platelets function
Help blood clot at wound site
Platelets structure
Platelets structure
Small cell fragments with no nucleus