DOL 5/8/25: Exploring Macromolecules:

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

• Carbohydrate

• Lipid

• Vitamin

• Protein

What is the monomer unit of proteins?

• Nucleotide

• Amino acid

• Monosaccharide

• Fatty acid

Tags

NGSS.HS-LS1-6

Which element is found in all macromolecules?

• Nitrogen

• Carbon

• Phosphorus

• Sulfur

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Which macromolecule is primarily responsible for storing genetic information?

• Protein

• Nucleic acid

• Lipid

• Carbohydrate

Which of the following best describes the function of enzymes in living organisms?

• They store genetic information.

• They speed up chemical reactions.

• They provide structural support.

• They store energy long-term.

A student is given a food sample and asked to test for the presence of starch. Which reagent should the student use?

• Benedict’s solution

• Iodine solution

• Biuret reagent

• Sudan III stain

Which statement explains why lipids are important for cell membranes?

• Lipids provide quick energy for the cell.

• Lipids form a barrier that separates the cell from its environment.

• Lipids store genetic information.

• Lipids help transport oxygen in the blood.

A scientist wants to compare the energy content of carbohydrates and lipids. Which experiment would best help her do this?

• Measure the amount of oxygen produced by each macromolecule.

• Burn equal masses of each and measure the heat released.

• Test each with iodine solution.

• Mix each with water and observe solubility.

Tags

NGSS.HS-PS1-4

Given a diagram of a macromolecule with a sugar, phosphate group, and nitrogenous base, how can you identify its type?

• By recognizing it as a nucleotide, which makes up nucleic acids.

• By identifying the presence of fatty acids.

• By looking for peptide bonds.

• By finding glucose rings.

A student observes that after eating a meal high in carbohydrates, their energy levels increase quickly but do not last long. Using your knowledge of macromolecules, explain why this happens.

• Carbohydrates are broken down slowly, providing long-term energy.

• Carbohydrates are broken down quickly, providing rapid but short-term energy.

• Proteins are responsible for quick energy.

• Lipids are broken down quickly, providing rapid energy.

Tags

NGSS.HS-LS1-7