1) The blood is mainly made up of.... a) red blood cells b) white blood cells c) platelets d) plasma 2) The function of plasma is to... a) Transport nutrients and oxygen b) Transport carbon dioxide and oxygen c) Transport nutrients and carbon dioxide d) Fight infection 3) The function of the red blood cells is to ... a) Transport nutrients b) Transport oxygen c) Transport carbon dioxide d) Fight infection 4) What is this? a) Red blood cell b) White blood cell c) Plasma d) platelet 5) The shape of a blood cell is described as... a) concave b) biconcave c) round d) sperical 6) The shape of a red blood cell allows.... a) surface area to be maximised. b) haemoglobin content to be maximised c) more carbon dioxide to be transported. d) the cell to fight infection better. 7) Which cell structure is absent from red blood cells? a) cytoplasm b) cell membrane c) mitochondria d) nucleus 8) Name the pigment found in red blood cells. a) Haemoglobin b) haemocyanin c) chlorocruorin d) Haemerythrin 9) What colour is the pigment haemoglobin? a) green b) violet c) blue d) red 10) In what form is haemoglobin transported in red blood cells? a) oxymyoglobin b) haemoxygen c) oxyhaemoglobin d) oxyglobin 11) When red blood cells pass through the lungs, will they gain or release oxygen? a) Gain b) Release 12) When red blood cells pass through the respiring tissues, will they gain or release oxygen? a) Gain b) Release 13) Different animal groups have different oxygen carrying pigments. Many crustaceans have blue blood. What is their respiratory pigment? a) haemoglobin b) haemocyanin c) chlorocruorin d) haemerythrin 14) Different animal groups have different oxygen carrying pigments. Many marine worms have green blood. What is their respiratory pigment? a) haemoglobin b) haemocyanin c) chlorocruorin d) haemerythrin 15) Different animal groups have different oxygen carrying pigments. Many brachiopods have violet blood. What is their respiratory pigment? a) haemoglobin b) haemocyanin c) chlorocruorin d) haemerythrin 16) What is the lifespan of a red blood cell? a) 10 days b) 120 days c) 250 days d) 365 days 17) What colour is blood plasma? a) red b) green c) yellow d) translucent 18) How long does it take 1 blood cell to travel the whole circulatory system? a) 20 seconds b) 20 minutes c) 20 hours d) 20 days 19) What metal is found in haemoglobin? a) iron b) zinc c) copper d) gold 20) How many red blood cells are there in one pint of blood? a) 565 thousand b) 3.6 million c) 9.6 biillion d) 2.4 trillion

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