Macromolecules Essentials

Which of the following biomolecules are major energy sources for cells?

• proteins

• lipids

• carbohydrates

• nucleic acids

Tags

NGSS.HS-LS1-7

Which biomolecule contains hydrogen, oxygen, nitrogen, carbon, and phosphorous?

• Lipids

• Proteins

• Carbohydrates

• Nucleic acids

One similarity between proteins and lipids is that they both –

• contain nitrogen as part of their structure.

• are made up of chains of smaller subunits.

• are composed of fatty acid chains.

• act as enzymes and contain peptide bonds

The surfaces of the leaves of many plants help to reduce water loss because they are not water-permeable. How does the biomolecule that makes up this surface differ from other biomolecules?

• It is made up of polymers of amino acids.

• It is made up of long chains of nucleotides.

• It is made up of long chains of fatty acids.

• It is made up of polymers of monosaccharides.

A similarity between proteins, carbohydrates, lipids, and nucleic acids is that they all -

• contain the element nitrogen.

• have the same chemical composition.

• contain the element carbon.

• have the same molecular shape.

Which of the answers below correctly places the building block with the correct biomolecule?

• saccharides - Protein

• nucleotides - Carbohydrates

• amino acids - Nucleic acid

• fatty acids - Lipids

Tags

NGSS.HS-LS1-6

Which of the following is a structural similarity between lipids and carbohydrates?

• Both contain nitrogen in their monomers.

• Both contain peptide bonds in their rings.

• Both are made up of fatty acid chains.

• Both are composed of carbon and hydrogen.

A diagram showing biomolecules is provided.Which molecule’s function is to move substances into and out of the cell?

• Cholesterol

• Lipids

• Proteins

• Carbohydrates

Which of the following is a function of lipids?

• Increase rate of reactions

• Act as genetic material

• Store energy for the cell

• Form chains of amino acids

Certain processes in the body must occur quickly in order to to sustain life. These processes depend on proteins that do what?

• increase the rate of chemical reactions

• exchange gases with the atmosphere

• store energy chemically in fats and oils

• help support the overall shape of cells

Tags

NGSS.HS-LS1-7