This is a revision powerpoint I used to revise for my GCSE exams. Filled with content from the specification, exam tips, questions, quizzes, animations, useful links and resources and everything in between in order for you to pass your exams!
,Things carried in blood plasma
• Amino acids
• Water
• Carbon dioxide
• Lactic acid
• Glucose
,What’s in the phloem?
• The products of photosynthesis
, 4.1 Red blood cells
• They are biconcave disks which gives them an increased SA to V ratio
for diffusion
• The are packed with a red pigment called haemoglobin that binds to
oxygen
• They have no nucleus which creates more space for haemoglobin
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