Topic 2 Biological Molecules

Which term describes both collagen and haemoglobin?

• Enzymes (No answer chosen)

• Fibrous proteins

• Globular proteins

• Macromolecules

What type of chemical reaction is involved in the formation of disulfide bonds?

• Condensation (No answer chosen)

• Hydrolysis

• Oxidation

• Reduction

Which diagram best represents the arrangement of water molecules around sodium ( Na+) and chloride (Cl-) ions in solution?

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Copy and complete the following table. Place a tick or a cross in each box as appropiate

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Copy the table and complete both columns. The table shows some functions of proteins, with examples of proteins that carry out these functions

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State three characteristics of monosaccharides

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The diagram shows a disaccharide called lactose. The carbon atoms are numbered. You are not expected to have seen this structure before. Lactose is a reducing sugar found in milk. It is made from a reaction between the two monosaccharides glucose and galactose

Suggest two functions that lactose could have

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The diagram shows a disaccharide called lactose. The carbon atoms are numbered. You are not expected to have seen this structure before. Lactose is a reducing sugar found in milk. It is made from a reaction between the two monosaccharides glucose and galactose

What is the name given to the reaction between two monosaccharides that results in the formation of lactose?

The diagram shows a disaccharide called lactose. The carbon atoms are numbered. You are not expected to have seen this structure before. Lactose is a reducing sugar found in milk. It is made from a reaction between the two monosaccharides glucose and galactose

Identify the bond labelled X in the diagram

The diagram shows a disaccharide called lactose. The carbon atoms are numbered. You are not expected to have seen this structure before. Lactose is a reducing sugar found in milk. It is made from a reaction between the two monosaccharides glucose and galactose

Draw diagrams to show the structures of separate molecules of glucose and galactose

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