Q: What type of reaction is a process in which some substances, called reactants, change into different substances, called products? Choices: - reversible reaction - physical reaction - toxic reaction - chemical reaction A:
chemical reaction
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Q: What is critical for the formation of hemoglobin? Choices: - salts - proteins - platelets - iron ions A:
iron ions
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Q: Which carrier molecule becomes less effective at binding oxygen as temperature increases? Choices: - water - helium - hydrogen - hemoglobin A:
hemoglobin
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Q: An electron in an atom is completely described by four of what? Choices: - photosynthesis numbers - decay numbers - prime bumbers - quantum numbers A:
quantum numbers
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