Carbohydrates, proteins and nucleic acids are types of biological molecule. Within each type, there are examples of molecules that can be described as polymers. (a) A polymer is a large molecule composed of smaller repeating molecules known as monomers. Complete Table 4.1 to produce a summary of some named biological polymers. Table 4.1 polymer constituent monomer type of bond between monomers

Haemoglobin consists of two α chains and two β chains. Approximately 5% of all humans have one amino acid in the β ch...

Which row gives the correct description of both a collagen molecule and a collagen fibre? [Table 12.1]

The diagrams show the structures of two amino acids, each of which has two amine (–NH2) groups. A peptide bond is for...

The contraction of striated muscle is explained by the sliding filament model.

The black pigment melanin, which contributes to hair, skin and eye colour, is produced by cells known as melanocytes.

Fig. 7.1 shows a red deer, Cervus elaphus. Red deer are herbivores that feed on a wide range of plants. [Figure 7.1] ...