The Molecules of Life

Mr. Anderson explains the molecules of life, focusing on carbon's role as a building block due to its bonding properties. He discusses functional groups, polymers, and monomers, emphasizing dehydration and hydrolysis reactions. The video covers nucleic acids, proteins, lipids, and carbohydrates, detailing their structures, functions, and importance in biology.

What happens to the proteins in a burger when consumed?

• They are converted into sugars.

• They are broken down into amino acids.

• They are stored as fat.

• They remain unchanged.

Why is carbon a fundamental element for life?

• It forms unstable molecules.

• It has two valence electrons.

• It is heavier than silicon.

• It can form four covalent bonds.

Which functional group is known for donating a hydrogen ion?

• Phosphate group

• Amino group

• Carboxyl group

• Methyl group

What is the process called when water is removed to form a bond between monomers?

• Dehydration

• Condensation

• Hydrolysis

• Sublimation

Which of the following is a polymer of nucleotides?

• Protein

• DNA

• Lipid

• Carbohydrate

What is the primary function of RNA in cells?

• Store genetic information

• Assist in protein synthesis

• Serve as a structural component

• Act as a catalyst

What distinguishes saturated fats from unsaturated fats?

• Presence of phosphate groups

• Presence of hydroxyl groups

• Presence of nitrogen

• Presence of double bonds

Which macromolecule is primarily used for energy storage?

• Nucleic acids

• Carbohydrates

• Lipids

• Proteins

What is the role of the R group in amino acids?

• It determines the amino acid's charge.

• It forms the peptide bond.

• It provides energy.

• It stores genetic information.

Which type of carbohydrate is glucose?

• Oligosaccharide

• Polysaccharide

• Disaccharide

• Monosaccharide