Biological Molecules and Food Tests

The monomer of a protein is

• Fatty Acid

• Glucose

• Amino Acid

• Glycerol

Examples of food which contain a lot of carbohydrates are:

• fish, nuts, oil

• bread, pasta, noodles

• meat, seeds

• apples, broccoli

We need lipids to

• build cell walls

• build cell membranes

• make the nucleus

• make the cytoplasm

We use ___________ to test for glucose.

• Benedict's Solution

• Iodine Solution

• Biuret's Solution

• Sudan III Solution

The monomers of lipids are:

• fatty acid and amino acids

• glucose and glycerol

• glucose and amino acids

• fatty acids and glycerol

A test for lipids is using Sudan III solution. What does a positive result look like?

• Turns Purple

• A red layer forms on top

• A green layer forms on top

• It turns black

What colour does iodine go when added to starch?

• Blue/Black

• Orange

• Blue

• Purple

Animals store carbohydrates as _____________

• glucose

• glycogen

• starch

• glycerol

Some monomers of carbohydrates are:

• glucose and fructose

• glycogen and glycerol

• glucose and amino acids

• fatty acids and fructose

Proteins are used for ______________

• energy and building cell walls

• growth, repair and enzymes

• insulation and building cell membranes

• respiration and enzymes