Red Blood Cells Carry oxygen around the body. They are biconcave, this means disc shaped with a dimple on each side. This shape increases the cell’s surface area for absorbing oxygen. They contain a chemical called haemoglobin which helps them absorb and release oxygen. Their shape increases the cell’s surface area for absorbing oxygen. Defend the body against infection. Lymphocytes produce chemicals which help fight infections. They can produce antibodies which kill microbes or make them stick together, making it easier for the phagocytes to engulf them. White Blood Cells There are two different types Phagocytes kill microbes in the blood by surrounding and engulfing them. Once inside the phagocyte, the microbe is digested. They also neutralise the poisons or ‘toxins’ produced by microbes. Platelets They help to clot blood at a wound to prevent cells blood being lost when blood vessels become damaged Are small fragments of cells. Plasma A straw coloured liquid. It carries many substances dissolved in it including glucose for body cells It carries the other types of blood cells which are suspended in it. Red Blood Cells Carry oxygen around the body. They are biconcave, this means disc shaped with a dimple on each side. This shape increases the cell’s surface area for absorbing oxygen. They contain a chemical called haemoglobin which helps them absorb and release oxygen. Their shape increases the cell’s surface area for absorbing oxygen. Defend the body against infection. Lymphocytes produce chemicals which help fight infections. They can produce antibodies which kill microbes or make them stick together, making it easier for the phagocytes to engulf them. White Blood Cells There are two different types Phagocytes kill microbes in the blood by surrounding and engulfing them. Once inside the phagocyte, the microbe is digested. They also neutralise the poisons or ‘toxins’ produced by microbes. Platelets They help to clot blood at a wound to prevent cells blood being lost when blood vessels become damaged Are small fragments of cells. Plasma A straw coloured liquid. It carries many substances dissolved in it including glucose for body cells It carries the other types of blood cells which are suspended in it. Statement Bank A

Red Blood Cells Carry oxygen around the body. They are biconcave, this means disc shaped with a dimple on each side. They contain a chemical called haemoglobin which helps them absorb and release oxygen. Their shape increases the cell’s surface area for absorbing oxygen. Defend the body against infection from microorganisms. White Blood Cells Platelets They help to clot blood at a wound to prevent cells blood being lost when blood vessels become damaged Are small fragments of cells. Plasma A straw coloured liquid. It carries many substances dissolved in it including glucose for body cells It carries the other types of blood cells which are suspended in it. Statement Bank B Red Blood Cells Carry oxygen around the body. They are biconcave, this means disc shaped with a dimple on each side. They contain a chemical called haemoglobin which helps them absorb and release oxygen. Their shape increases the cell’s surface area for absorbing oxygen. Defend the body against infection from microorganisms. White Blood Cells Platelets They help to clot blood at a wound to prevent cells blood being lost when blood vessels become damaged Are small fragments of cells. Plasma A straw coloured liquid. It carries many substances dissolved in it including glucose for body cells It carries the other types of blood cells which are suspended in it. Statement Bank B