BACE Molecular Biology/Biochemistry Review Part 1

What are the four main types of biological macromolecules?

• Carbohydrates, Proteins, Lipids, Nucleic acids

• Carbohydrates, Proteins, Lipids, Vitamins

• Carbohydrates, Proteins, Lipids, Minerals

• Carbohydrates, Proteins, Lipids, Water

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Which of the following is not a type of biological macromolecule?

• Proteins

• Carbohydrates

• Lipids

• Vitamins

Each macromolecule has a unique ______ and function.

• structure

• color

• size

• weight

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Why are macromolecules essential for life processes?

• They store genetic information.

• They provide structural support.

• They catalyze biochemical reactions.

• All of the above.

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What does hydrophobic mean?

• Hydrophobic refers to the property of a substance that repels water or does not mix with water.

• Hydrophobic refers to the property of a substance that attracts water and mixes well with it.

• Hydrophobic refers to the property of a substance that is neutral towards water and neither repels nor attracts it.

• Hydrophobic refers to the property of a substance that dissolves completely in water.

Which of the following is a function of lipids?

• A) Energy storage

• B) DNA replication

• C) Photosynthesis

• D) Protein synthesis

Which of the following is an example of a lipid?

• Glucose

• Starch

• Phospholipids

• Amino acids

Lipid nanoparticles are used for transporting what?

• Lipid nanoparticles are used for transporting various types of therapeutic agents, including mRNA, DNA, proteins, and small molecules.

• Lipid nanoparticles are used for transporting electrical signals across neurons.

• Lipid nanoparticles are used for transporting oxygen in the bloodstream.

• Lipid nanoparticles are used for transporting nutrients in plants.

Lipids are made of:

• Amino acids

• Nucleotides

• Fatty acids and glycerol (hydrocarbon chain)

• Monosaccharides

The difference between saturated and unsaturated fatty acids is:

• Saturated fatty acids have no double bonds between carbon atoms, while unsaturated fatty acids have one or more double bonds.

• Saturated fatty acids have one or more double bonds between carbon atoms, while unsaturated fatty acids have no double bonds.

• Saturated fatty acids are liquid at room temperature, while unsaturated fatty acids are solid.

• Saturated fatty acids are found in plants, while unsaturated fatty acids are found in animals.