Macromolecules

Which building blocks are correctly matched to the macromolecule they form?

• Amino acids make proteins.

• Glucose molecules make lipids.

• Nucleotides make carbohydrates.

• Fatty acid chains make nucleic acids.

Which of the following statements illustrates why carbon atoms are so important in living organisms?

• Carbon atoms contain large stores of energy.

• Carbon is found in most inorganic compounds.

• Carbon atoms are polar which allows them to dissolve many compounds.

• Carbon is able to bond to many other atoms to form large and complex molecules.

Tags

NGSS.HS-LS1-6

Which of the following groups of macromolecules are composed of three fatty acid chains bonded to a glycerol?

• lipids

• proteins

• nucleic acids

• carbohydrates

Which of the following structures is represented by the figure?

• amino acid

• nucleotide

• triglyceride

• monosaccharide

Tags

NGSS.HS-LS1-6

The graph shows the progress of a biochemical reaction. What effect would an enzyme have on the reaction?

• An enzyme would increase the amount of energy at Point 3.

• An enzyme would increase the amount of energy needed at Point 1.

• An enzyme would decrease the energy needed to move from Point 1 to Point 2.

• An enzyme would cause the amount of energy at Point 1 and Point 3 to switch places.

Tags

NGSS.HS-PS1-4

The diagram shows three repeating units of a polymer. Which of the following molecular structures make up the repeating units shown in the diagram?

• amino acid

• nucleotide

• triglyceride

• monosaccharide

Tags

NGSS.HS-LS1-6

Which group of macromolecules is responsible for storing genetic information?

• lipids

• nucleic acids

• proteins

• carbohydrates

Tags

NGSS.HS-LS3-1

At very high temperatures, most enzymes do not increase the rate of the reactions they regulate. What is the most likely reason for this lack of enzyme activity at very high temperatures?

• The enzyme denatures and can no longer function properly.

• The enzyme would have already broken down at a much lower temperature.

• The products would have already been used up in the reaction by the time it reaches that high temperature.

• The enzyme would have already sped up the rate of reaction as much as it could and would not be affected by the increase in temperature.

Which statement correctly describes a property of enzymes?

• Enzymes react at identical rates under all circumstances.

• Enzymes are destroyed and then reformed after each reaction.

• Enzymes form permanent structures when they bind to substrates.

• Enzyme structures are specific to the type of substrate they bond to.

Which of the following correctly matches the elements present in macromolelcule?

• CHO-Lipids

• CHO-Proteins

• CHON-Nucleic Acids

• CHONP- Carbohydrates

Tags

NGSS.HS-LS1-6