Introduction to Biological Molecules (2.1.1)

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What are the chemical groups in the body?
Carbohydrate (4%). Protein (19%). Lipid (15%). Vitamins & Minerals, and Nucleic Acids (2% collectively). Water (60%).
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What is the role of carbohydrates?
Energy store & supply. Can have structural roles.
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What is the role of protein?
Can have structural roles. Used in metabolism.
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What is the role of lipids?
Energy store & supply. Insulation. Membrane structure. Protection of organs.
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What is the role of vitamins and minerals?
Needed to activate some enzymes in the body.
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What is the role of nucleic acids?
Carry the genetic code & instructions for protein synthesis.
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What is the role of water?
It's a solvent which dissolves substances for reactions to take place. Makes up a large proportion of blood plasma and cell cytoplasm.
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What is biochemistry?
Chemical reactions involving biological molecules.
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What is metabolism?
Refers to the total of all the biochemical reactions occurring in an organism.
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What is a catabolic reaction?
Reactions involving breaking larger molecules into smaller ones. Eg: digestion.
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What is an anabolic reaction?
Reactions involving building smaller molecules into larger ones. Eg: joining glucose into glycogen.
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What feature makes carbon a framework atom?
Its multiple bonding feature means it can form the basis of most biological molecules necessary for life.
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What is a condensation reaction?
Biochemical reaction that links monomers together. Water is lost.
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What is a hydrolysis reaction?
Biochemical reaction involved in splitting a large molecule into smaller ones.
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Card 2

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What is the role of carbohydrates?

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Energy store & supply. Can have structural roles.

Card 3

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What is the role of protein?

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Card 4

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What is the role of lipids?

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Card 5

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What is the role of vitamins and minerals?

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