The table lists some biological molecules.
Complete the table by putting a tick (✓\checkmark✓) in the appropriate box or boxes on each line to show whether the corresponding feature is present.
The first line has been completed for you.
| Biological molecule | Is a monomer | Is a polymer | Contains glycosidic bond(s) |
|---|---|---|---|
| Nucleotide | ✓\checkmark✓ | ||
| Cellulose | |||
| Galactose | |||
| Lactose |
Describe the bond between the glucose and galactose monomers in lactose.
Cellotriose is a trisaccharide formed during the breakdown of cellulose by cellulase. It can be broken down further to produce glucose molecules.
Complete the chemical equation for the hydrolysis of cellotriose by writing the missing reactant, including its coefficient, on the dotted line:
Cellotriose+……⋯→3 Glucose \text{Cellotriose} + \dots\dots\dots \rightarrow 3\ \text{Glucose} Cellotriose+……⋯→3 GlucoseThe enzyme cellobiase converts the disaccharide cellobiose to glucose. Suggest why cellotriose can also be converted to glucose by cellobiase.
