IP Quiz 1- Molecular Biology (Carbohydrates and Lipids)

What are the monomers of carbohydrates called?

• Disaccharides

• Polysaccharides

• Monosaccharides

• Triglycerides

Answer explanation

Remember monomers are single (1) molecules that will form other larger molecules. Monosaccharides are the single units that make up the larger molecules of Carbohydrates.

What are MACROMOLECULES?

• Substances that are very small molecules important to biochemical processes, such as glucose and water

• Substances that are very large and important for biochemical processes, such as lipids and carbohydrates

• Substances that the body needs only in small amounts

• Substances the body needs only in large amounts

Carbohydrates that are made up many sugars units (found to be more than 2) are called?

• simple sugars

• polysaccharides

• monosaccharides

• disaccharides

What are complex carbohydrates?

• Carbohydrates that have long chains of sugars

• Carbohydrates that don't have sugar chains at all

• Carbohydrates that have one sugar unit present

• None of the choices

Answer explanation

Complex carbohydrates (example: starch and fibre) are large molecules and includes many smaller sugars combined together.

Which one of the following is not a monosaccharide?

• Glucose

• Sucrose

• Fructose

• Galactose

Answer explanation

Starch is a polymer of:

• proteins

• glucose

• lipids

• nucleic acids

Answer explanation

Polymers are made up of monomers.

The only monomer from the list is glucose which helps to make up all large carbohydrates example starch.

Fill in the Blank: Starch is to plants, as _______ is to animals.

• Cellulose

• Glucose

• Sucrose

• Glycogen

Answer explanation

The storage carbohydrate is animals is glycogen.

Lipids and Carbohydrates are both essential sources of:

• Insulation

• Sugars

• Energy

• Antibodies

What are the three elements found in all carbohydrates

• Carbon, Helium, Oxygen

• Carbon, Hydrogen, Oxygen

• Carbon, Helium, Chlorine

• Carbon, Nitrogen, Oxygen

Answer explanation

Carbo- Carbon

Hydrate- Water (H₂O) Hydrgen and Oxygen

Because of the high energy content of lipids, most animals will?

• Use it over carbohydrates

• Pass it out as undigested waste

• Store it up for later use

• Not consume it in their diet at all